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Overview of waterproof power adapters A waterproof power adapter is power supply designed to operate normally in wet or aquatic environment. Its working principle is essentially the same as that of an AC/DC power adapter, the primary difference being that it incorporates speical waterproof designs and materials,which can effectively prevent the infiuence of wet environment inside the power supply. Special waterproof isolation treatments are applied inside the waterproof power supply, and a special waterproof coating is applied to the circuit board within the  power adapter. This paint can resist moisture and corrosion well, and prevent the circuit panel from being damp, so as to ensure the reliability and safety of the power supply. The shell of the waterproof power adapter adopts a special waterproof design, and its internal sealing design, through the rubber ring, silicone and other sealant, effectively prevent the entry of water.   Advantages of waterproof power adapter  1)  Safety performance improvement: waterproof power adapter after special design, in wet or water environment, can effectively prevent short circuit, leakage and damage caused by moisture and liquid safety accidents, greatly improve the safety of the use process. 2)   Enhanced durability: Waterproof power supplies are designed to be more durable than standard power supplies. They are usually made of high-quality materials that can withstand stable operation in humidity, extreme temperatures and other harsher environments.  3)  High reliability: Waterproof power supply is usually designed with multiple protection measures, such as over-current protection, over-voltage protection, over-temperature protection, etc., to ensure that it can still work stably in harsh environments and reduce the failure rate.  4)  Broadening of application scenarios: In addition to the ordinary indoor environment, it can also be used in outdoor or humid environments, such as navigation, fishing, outdoor exploration and other fields, waterproof power adapters are indispensable equipment to meet the needs of different scenarios.  5)  Easy installation and maintenance: Waterproof power supplies are generally easy to install and maintain. They come with all the necessary installation hardware and connectors, and many models can be installed without a professional electrician. In addition, these power supplies are designed for low maintenance, with features such as a sealed housing to prevent dust and debris from entering the device.                                                                             Waterproof power adapter applications  Industrial automation: Waterproofing protects against power outages and potential safety hazards caused by moisture or dust entering. Industrial production environments often contain a lot of water vapor ,dust, oil and other impurities, which are easy to cause damage to electrical equipment. Waterproof power adapters can provide power to the operating equipment and machinery in this environment, such as motors, control systems, sensors and other key components to provide reliable and lasting power to ensure stable operation and ensure the normal operation of the production line.  Outdoor lighting: Waterproof power adapter is widely used in outdoor landscape lighting, architectural lighting, road lighting and other fields, waterproof power adapter can provide a stable and safe power supply for LED lights to ensure the best brightness and life. Due to their rugged design, they can withstand exposure to rain, snow and extreme temperatures, so electrical equipment can operate normally in rain and snow weather.  Marine and Aquatic systems: Waterproof power supplies play a vital role in Marine and aquatic systems such as ships, yachts and aquariums. They provide reliable power for a variety of devices, including navigation systems, lighting, water pumps and control panels. The water resistance of these power supplies ensures uninterrupted operation even in wet or saltwater environments.  Amusement equipment: Amusement equipment often comes into contact with water and rain during operation, so it is necessary to use waterproof power adapters to ensure the life safety of tourists and ensure that electrical equipment is not damaged.    KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter,  Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

Switch Power Supply  Switch power supply is a high-frequency power conversion device, but also a power supply. Switching power supplies can also be referred to as switch mode power supply, switching converters and switching power supplies. Its function is to convert the level voltage into the voltage or current required by the client through different forms of architecture. The input of the switching power supply is mostly AC power supply or DC power supply, and the output is mostly a device that requires DC power supply. The switching power supply converts voltage and current between the two.     Working principle of switching power supply The working principle of the switching power supply is to make the power transistor work in the on-off and off-off states, in these two states, the voltammetry added to the power transistor is very small (in the on-off, low voltage, large current; When turned off, the high voltage (low current)/volt-ampere product on the power device is the loss generated on the power semiconductor device. Switching power supplies can be divided into AC/DC and DC/DC two categories. Switching power supply work to meet the three conditions, first of all, the power electronic device work in the switching state, followed by the power electronic device work at high frequency rather than close to the low frequency of the power frequency, and finally the switching power output must be DC, not output AC.     Advantages of switching power supply The high conversion efficiency of the switching power supply is one of its main advantages, and because the switching power supply has a high operating frequency, a small volume and light weight transformer can be used, so the switching power supply will also be smaller and lighter than the linear power supply. The following are several advantages of switching power supplies, including but not limited to these: (1) Small size, light weight: because there is no power frequency transformer, the volume and weight is only 20 to 30% of the linear power supply. (2) Low power consumption, high efficiency: the power transistor works in the switching state, so the power consumption on the transistor is small, the conversion efficiency is high, generally 60 to 70%, and the linear power supply is only 30 to 40%. (3) Simple structure, high reliability: easy maintenance, current ripple rate can be easily achieved relatively low.   Use of switching power supply Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, Ultra Thin Switch Power Supply , instrumentation, medical equipment, semiconductor refrigeration, air purifier, electronic refrigerator, liquid crystal display, LED lamps, communication equipment, audiovisual products, security monitoring, LED lamp belt, computer chassis, digital Products and instruments, etc.       KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.

AC/DC power adapter is a power conversion device, which can convert AC power into direct current required by the equipment, and has the advantages of high efficiency, environmental protection, safety and reliability. The AC/DC power adapter produced by KELIC is simple and elegant in appearance, and uses high-quality materials to make the housing, and has good protection performance. We have a special power adapter also added waterproof power supply design, the material is also used in a more durable waterproof way to meet the different needs of different scenarios; Adapter plugs and sockets are carefully designed to be securely connected.   The Working Principle Of Desktop Power Adapter  The dc power adapter can be divided into two types according to the link method, which are wall mount power adapter and desktop power adapters. Today, the desktop power adapter is for an understanding. First of all, the desktop power adapter has a plug and a converter, wherein the converter is used to convert the power supply into the voltage and current suitable for the device, and the plug is connected to the power plug; The working principle of the desktop power adapter is to convert the input alternating current into the direct current required by the equipment, the conversion process includes the input of the power supply, rectification, filtering, transformer to the final output of the five steps, briefly summarized the first is to obtain alternating current from the socket, Next, the input AC is adjusted to a suitable level (such as high voltage adjustment to low voltage) through the transformer, and then the rectifier circuit will convert the AC into stable direct current, and then filter through the filter circuit to remove the AC component, so that the output DC is more stable. Finally, individual also needs to further adjust the voltage through the transformer, so that its output DC, more close to the equipment needs value; After the completion of these steps is the final direct current output.     Features Of Desktop Power Adapter Stable and reliable operation The design of the desktop power adapter is very detailed and careful. Built-in there are a bunch of protection circuits and safety devices, safety protection devices have overcurrent, overvoltage, overload protection and other protection mechanisms, in use when the circuit found voltage and power beyond the safety range, the safety mechanism will automatically start, it may cut off the power or reduce the output power, to prevent your electronic products from being damaged. In addition, the interior of the power adapter uses high-quality parts and advanced circuit design. This really reduces the chance of it breaking down and makes it more stable.   High efficiency The power adapter for desktop has high power output.The conversion efficiency of our power adapters is no less than 85%, and some power adapters with gallium nitride components can even achieve a conversion efficiency of no less than 90%, reaching China's Energy Efficiency Level 2.It's become the ideal power supply for a lot of high-load electronic devices.For example, in the server field, servers need to run continuously to handle a ton of data and requests.So they need a power supply that can give stable and strong power support.     Good heat dissipation function The desktop power adapter is pretty integrated inside.This gives it a unique advantage in heat dissipation.   Compared to plug-in wall power adapters, the desktop power adapter is easier to dissipate heat on its surface because of its special design.In terms of materials, they use advanced heat dissipation materials and technologies, like metal shells and heat dissipation silicone. This makes the heat dissipation even more efficient.   Versatility The desktop power adapter can work safely and stably in all kinds of environments, even wet or harsh ones. For example, with a waterproof power adapter, the classification of waterproof can reach IP67, which means that it is very waterproof. So it can work safely in harsh environments. It can power multiple devices at the same time. Some adapters even support fast charging.So it can meet high power requirements and is really adaptable.   The power supply has a long lifespan: the average MTBF (Mean Time Between Failures) of the power supply is at least 20,000 hours, which generally means that there is a long average time between random failures under normal working conditions, indicating that our power adapters have high design reliability and are quite durable.         KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.

Switched-Mode Power Supply A switched-mode power supply (SMPS), also called switching-mode power supply. Just as its name implies，Switched-Mode Power Supply is a device that turns voltage and current on or off. Switched-mode power supply is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, a SMPS transfers power from DC or AC source to DC loads。 Unlike a linear power supply, the switching power supplies have the advantages of small size, light weight, high efficiency, and strong stability. These advantages make them an indispensable "power source" for modern electronic devices. Home appliances such as televisions, audio equipment, refrigerators, and air conditioners are also inseparable from switching power supplies. Of course, in the field of industrial automation, switching power supplies provide stable power support for industrial robots, and automated production lines, improving production efficiency and quality. Power Adapter An Power adapter or AC/DC adapter, also called a wall charger, power adapter, is a type of external power supply, often enclosed in a case similar to an AC plug. A power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is used to convert AC input into DC output. It can be divided into wall-mount type and desktop type according to the connection method. It is commonly seen in laptops, routers, etc. According to the power type, it can be classified into direct output mode and AC output mode. There are more types. Including outdoor waterproof power adapters, desktop power adapters, wall plug-in power adapters, etc. The power adapter is small in size, easy to carry, and relatively safe. Most electrical equipment requires a low voltage and is relatively safe. Charger A charger is an electronic device whose main function is to convert power (AC or DC) into the appropriate current and voltage for battery charging. The charger delivers electrical energy to the battery through internal circuit control in order to store electrical energy and keep the battery full. The most common conversion device currently used to charge electronic devices is the USB charger, which can basically charge different electronic products through the USB device plug. Usually, some people call the power adapter a charger, while others simply call a charger by that name. The charger is include in the power adapter, but the power adapter is not part of a charger.   Switching power supplies are relatively easy to distinguish, but they are often mixed together in life and are difficult to distinguish. They are all called chargers. In fact, power adapters include chargers. Power adapters tend to be stable, while chargers tend to be diversified to meet the needs of multi-device charging. Power adapters usually have stable output voltage and current, and can provide continuous and reliable power supply. They are typically designed as larger external devices to accommodate complex conversion circuits and heat dissipation systems. Chargers usually have adjustable output current and voltage to meet the charging needs of batteries of different types and specifications. They are usually designed as portable and compact external devices, which are easy to carry and use.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.        

  The power adapter is one of the common electronic devices in our daily life. Its main role is to convert alternating current into direct current for various electronic devices. Its power is generally determined by three elements: input voltage, output voltage and output current. A high-power power adapter is an electronic device that converts alternating current into direct current, and is usually used in devices that require high power, stable and reliable power supply. Its working principle mainly involves the transformer converting the high-voltage in the alternating current to the required low-voltage through the principle of electromagnetic induction, the rectifier converting the alternating current into direct current, and then the filter removing the ripple in the direct current to make the current smoother. Finally, the voltage stabilizer stabilizes the output voltage to ensure that the output voltage meets the requirements of the device and protects the device from the influence of voltage fluctuations.                                       Do high power chargers damage device? The high AC/DC Power Adapter itself will not directly damage the device, the key is the compatibility of the dc adapter with the device and the way it is used. If the dc power adapter is well matched to the device and the device can effectively control the current and voltage during charging, then the device will not be damaged. When using a high ac dc power adaptor, first make sure it is compatible with your device. Different brands and models of devices may have different requirements for charging power. If the charger power is too high and the device can not withstand, it may cause the battery to overheat or even damage. However, long-term use of adapters that do not match the current of the device will also have an adverse effect on the device:     Device’s overheating During the charging process of the device, its internal circuit and the battery will generate a certain amount of heat. When using a high-current power adapter, due to the input of more electrical energy, it may aggravate the heating inside the device. The internal circuit of the device is damaged The circuit inside the device is designed according to certain current and power specifications. Long-term use of a high-current power adapter may expose electronic components in a circuit to currents beyond their design range. For example, components such as resistors and capacitors in the circuit may be damaged due to overheating in the case of long-term overcurrent. For some sophisticated electronic equipment, this damage may lead to equipment failure, such as short circuit and other problems. Reduced battery life For devices with batteries (such as mobile phones, tablets, flashlights, etc.), if you use a power adapter with high current for a long time, it may cause the battery to overcharge. Overcharging will cause the battery to generate more heat, resulting in battery plate aging, electrolyte drying and other problems, thereby shortening the service life of the battery.  Increased security risks Overheating of equipment and damage to internal circuits may pose safety risks. Overheating may deform the device shell and even cause a fire. The internal circuit damage may lead to leakage and other conditions.   So in addition to ensuring compatibility, we also need to use high-power chargers correctly. Here are some suggestions: 1. Avoid using the device while charging to reduce battery burden and risk of overheating. 2. When the device is fully charged, unplug the charger in time to avoid overcharging. 3. Check the condition of the charging cable and charger regularly, and replace it in time if it is damaged. 4. Do not use high-power chargers in extreme temperature environments.       KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

1.Avoid Mixing Power Adapter of Different Power Power adapters from different brands may have the same interface shape to be interchangeable. However, the power outputs, as well as some current and voltage standards may be different，which may damage the device. In terms of current, the maximum current that the power adapter can provide should be greater than or equal to the device's requirements. Generally, the power requirements of the device should match or be slightly lower than the output power of the dc power adapter. If the output power of the dc adapter is less than the device's requirement, the device may not work properly, or its performance may be unstable, and it may even damaged the device. In addition, using a power adapter with a mismatched output power may pose a safety hazard.   2.The Power Adapter is Abnormal Identifying abnormalities in power adapters isn't particularly difficult. When the power adapter is used for charging, the original power adapter will perform rectification during operation, so it will producing a certain sound. The sound emitted by the power adapter should be regular and soft. Conversely, it emits a loud noise during charging, and operating sound is unstable and irregular, which means that the power adapter has an abnormal fault. In such a case, you should immediately stop using it and ask a professional engineer to inspect and repair it. In addition to abnormal sounds, there is also overheating issue. Excessive load, high ambient temperature or poor heat dissipation of the adapter may cause the power adapter to overheat. Solutions include ensuring that there is sufficient space around for the adapter to dissipate heat, reducing the load, and resting for a period of time before using it again. If the problem persists, it may be necessary to replace the adapter with one that has better heat dissipation performance.   3.Rational Use of Power Adapter for Charging When a power adapter is charging an electronic product, it is advisable to avoid using the electronic product. When using the electronic product during charging and running applications that consume large capacity memory, it will increase the load on the power adapter. This not only slows down the battery charging speed but also shortens the service life of the electrical appliance's power adapter. In addition, the ac dc power adaptor should be stored in a dry environment to avoid moisture. A humid environment may cause short-circuit in the circuit or rusting, which will affecting the performance of the power adapter. At the same time, avoid exposing it to direct sunlight or high-temperature environment to avoid damaging the internal electronic components.‌   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.     ‌  

With the development of science and technology, we are using more and more electronic products. Many of these products require AC/DC Power Adapters, which serve as a bridge between electronic devices and power grid. If the users uses the dc power adapter incorrectly or do not maintained properly, it will not only directly affect the lifespan of the power adapter but also lead to accidents. Therefore, its stability and durability is crucial to users.         Common causes of power adapter damage Overload use: Long time operation under high load will lead to overheating of internal components, and easy to damage. Avoid using beyond the rated power range. Voltage instability: Large voltage fluctuations or instability can damage the internal circuit. In areas where the voltage is unstable, use an ac dc adapter with a voltage regulator or a Uninterrupted Power Supply. Environmental factors: High temperature, humidity and dust will accelerate the aging of components. Keep the adapter in a clean and dry environment. Product quality: Inferior power adapters have defects in design and manufacture and are more prone to damage. Purchase from regular brands and channels. Some maintenance methods for power adapters： 1.Drop-resistant and shockproof The power adapter is actually a fragile part, and the internal components cannot withstand being dropped. Do not drop, knock or vibrate the charger. Rough treatment will damage the internal circuit board. 2.Regular cleaning Regular cleaning power adapter and the interface, gently wipe with a damp cloth or anti-static cloth. However, please be careful not to allow water  enter the interior, although some adapters are Waterproof Power Adapter. 3.Water and moisture resistance As an electronic product, accidentally getting wet or being exposed to humid air when not used for a long time will cause varying degrees of corrosion or oxidation of its internal electronic components. 4.Strong chemical resistance To remove stains on the surface of the power adapter, you can wipe it with cotton dipped in a small amount of anhydrous alcohol.Do not use strong chemicals to clean the adapter.     KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.

As an important accessory for electronic devices, the use of ac/dc power adapter is a very common thing in our daily life, whether at home, office or in travel, we all need power adapters to provide power for our mobile phones, laptops, tablets, cameras and other devices.We've also heard about fires caused by power adapters,the dc power adapter is directly connected to the switch power supply system, and has a certain current, voltage, power and other potential dangers, so the correct use and maintenance is directly related to the performance of the equipment and the safety of the user. Therefore, when using the power adapter, you must pay attention to some safety matters to prevent the occurrence of fire, electric shock, equipment damage and other problems.   Choose a Proper Power Adapter The demand for power adapters on the market is growing, and it is inevitable that there will be fake cottage power adapters, their quality is poor, the price is not high, there will be some consumers bought by mistake. We can distinguish them from the following observations: Check the appearance of the power adapter, the original formal power adapter shell manufacturing process is good, the stripes are clear, the color is uniform and the shell seam is tight, and the counterfeit product will have a rough feeling, the shell seam will have cracks, which can not only be seen by the naked eye but also can be felt by touching the hand. Check the logo information of the brand, the identification content of the regular power adapter includes: rated voltage or rated voltage range, the symbol of the nature of the power supply, rated frequency or rated frequency range, rated current, manufacturer's name or trademark, model, 3C certification symbol, etc., and the handwriting of the logo is clear. The identification information content of the counterfeit power adapter is generally not standardized, the handwriting is not very clear, and often the two can be compared. Check the plug of the power adapter: the plug and connector of the regular power adapter are fine, smooth, and without corrosion. At the same time, its power plug should conform to our national plug style. Choose the right power adapter Consider the following parameters when purchasing a power adapter, which can help you choose the right power adapter. Input voltage and frequency: The input voltage and frequency of the power adapter must be consistent with the input voltage and frequency of the power supply device. Output voltage: The output voltage of the power adapter must be consistent with the rated voltage of the power supply device. If the output voltage is too high, the power supply device may be damaged. If the output voltage is too low, the power supply device may not work properly. Output current: The output current of the power adapter must be greater than or equal to the rated current of the power supply device. If the output current is too small, the power supply device may not work properly. Under normal circumstances, the high current adapter can replace the small current power adapter, such as 2A can replace 1.5A and 1A. Power: The power of the power adapter should be greater than or equal to the rated power of the power supply device. According to different use scenarios, choose different types of power adapters, such as outdoor wet or water environment, it is preferred to choose waterproof power adapter. When connecting the power adapter Check the plug and socket: Before connecting, check that the plug of the power adapter matches the power socket, ensure that there are no damaged or exposed metal parts on the plug, and ensure that the input voltage range of the power adapter is consistent with the local power grid voltage. Insert the device: Insert the plug of the output end of the power adapter into the power interface of the device, and ensure that the plug is tightly connected to the interface without loosening. Connect the power supply: Insert the other end of the power adapter into the power outlet to ensure a firm connection and avoid loose or poor contact. Storage and maintenance of power adapter When the power adapter is not in use, avoid high temperature and humid environments and store it in a dry and ventilated place. If the power adapter is placed in a place where the temperature is too high for a long time, the electronic components of the power adapter will shorten the life of the electronic components of the power adapter, which is easy to cause deformation of the plastic parts, and there is a potential risk of fire. The power adapter is exposed to a humid environment for a long time, which will cause varying degrees of corrosion or oxidation of its internal electronic components, and even short-circuit failure during use, resulting in electric shock or fire. At the same time, it is also necessary to prevent the power adapter from falling from a height, damaging the internal circuit board of the power adapter, so that the components are loose and there is a short circuit fault. Check the power cord of the power adapter regularly. If it is damaged or broken, it should be replaced immediately to prevent short circuit or electric shock. Therefore, it is necessary to properly keep the plug and wire of the power adapter to avoid being squeezed or damaged by external force, affecting the use effect.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter,  Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

In daily life, people's health consciousness has become increasingly high, water is an indispensable energy material so in order to water safety and purity, water purifier has become a necessary appliance for every family. Water purifier can be safe and stable behind the operation of the presence of waterproof power adapter is certainly essential, it plays a key role, then this article will help you understand the water purifier power adapter and how to select the right water purifier charger.   The working principle of water clarifier power adapter The increase pump in the water purifier generally requires the power supply to be 24V/36V, and the input mains power is 220V, so a power adapter is required as a transformer to convert the input AC power to the appropriate direct current required by the water purifier. The working principle is as follows. Rectifier: first receive 220V AC, through the rectifier converted to pulsating DC; Filtering: reduces the ripple in the DC power with the purpose of obtaining a smoother DC power; Voltage conversion: DC into the transformer after the voltage will be reduced to 24V or 36V to adapt to the needs of the water purifier; Voltage stabilization: to keep the output voltage stable and cope with input voltage fluctuations and load changes; Protection: in order to ensure the use of the process of safety considerations and extend the life of the equipment, so will have over-current, over-voltage and short-circuit protection; Output: the final stable DC power will be provided to the water purifier to drive the booster pump work.     The role of the water purifier power adapter ● Provide enough stable power for the various components of the water purifier, such as adding pumps, control circuits, display screens, etc., to ensure that each component can work normally and stably to ensure the filtration and water supply function of the water purifier.   ●  Protect the components in the water purifier from receiving too high or too low voltage damage, unstable voltage may lead to equipment failure and potential safety accidents, so the power adapter can provide a stable voltage while also protecting the safety and health of users.   How to choose the right power adapter? 1 Confirm the specifications of the equipment: first clear the power of the power adapter and water purifier, output voltage and current and other basic parameters, so as to ensure that the purchase of the power adapter want to match; 2 Safety performance: Check whether the power adapter has a protection function, the protection function is to ensure that in the use of the process can provide safe and reliable power support, but also to ensure the safety of the use of the process; 3 Product material: In addition to considering the output power, stability, safety and other factors, the material of the power adapter itself is also very important, choose the adapter with high temperature and corrosion resistance, while having excellent impact resistance and seismic performance, which can improve our safety during use; 4 Waterproof level: The water purifier in a humid environment to choose an adapter with an appropriate waterproof level (IP level) can improve the safety of use; 5 Choose a brand with good reputation: brand and reputation are important reference factors, the brand of products in terms of quality control are more strict and have perfect after-sales service, if there is a problem in the process of use can be solved for you; 6 Purchased user evaluation: the real user evaluation is often the most valuable reference, you can use the evaluation in the account to obtain more product performance and quality as a reference; 7 Relevant certification standards: Finally, at the time of purchase, check whether the power adapter meets international safety standards and whether it has 3C certification.     KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

With the popularity of electronic equipment, the power adapter has become an indispensable part of our lives, the ac/dc power adapter as a key component of electronic products, although it is only a small device but the security risk behind it is not small, so its security stability and reliability is crucial to protect consumers and equipment. Worldwide, power adapters must pass a series of safety certifications to ensure that they meet international and regional safety standards.   Why do you need security certification? 1. The first is to protect the safety of consumer users: safety certification can ensure that the dc power adapter follows strict safety standards in the design and manufacturing process, thereby reducing the risk of fire or electric shock caused by overheating, short circuit and other failures, and protecting the property and personal safety of consumer users. 2. Ensure product quality: the certification body will supervise the production process of the power adapter to ensure that the manufacturer is produced in accordance with the standard, so the certified products have been strictly tested and meet the requirements of specific quality and performance certification standards, which means that the product has higher reliability and stability. 3. Compliance with regulations and market entry requirements: Many countries and regions have laws and regulations for electrical products, requiring products to obtain the corresponding certification in order to be sold on the market. This is a passport to market for manufacturers. 4. Enhance brand image: Power adapters that pass safety certification can enhance consumer trust and enhance brand image.     Common power adapter safety certification ● CCC certification and CQC certification: China's mandatory product certification system, applicable to products sold in China; ● CE certification: is a mandatory certification mark to enter the EU market, indicating that the product meets the requirements of the EU on safety and health and environmental protection, and the product must also meet the low voltage directive and electromagnetic compatibility Directive and a series of relevant regulations; ● FCC certification: It is the necessary certification to enter the U.S. market, and the certification standard responsible for the Federal Communications Commission; Its common standards are FCC-A industrial standard and FCC-B civil standard, and the FCC-B standard is safe and harmless; ● SAA certification: It is a necessary standard to enter the Australian market, and its products and equipment must meet local safety and performance standards;     ● UL Certification: This certification is widely recognized in the United States and Canada and is one of the most stringent safety certification standards in North America. ● TUV Certification: Safety certification mark issued by the German Technical Supervision Association, and has a high reputation worldwide, especially in the European market. ● CB certification: It is an international certification system of the International Electrotechnical Commission (IEC) on the test certificate of electrical products. The purpose of this certification is to provide a multilateral mutual recognition framework that can make it easier for products to obtain the certification of multiple countries.     KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

How the AC/DC Power Adapter works and the reason of heat The power adapter serves as an intermediary device between the power grid and electronic devices, primarily responsible for converting alternating current (AC) to direct current (DC). It supplies power to electronic devices either through a charging cable or by direct connection. During operation, the adapter typically emits a faint buzzing sound and generates heat. This phenomenon is attributed to the energy consumption of internal electronic components such as transformers and capacitors during the transmission and conversion of electrical energy. Therefore, it is not surprising that some degree of heat generation occurs during normal use.   Is it okay for an adapter to get hot? In practice, if the ac/dc power adaptor complies with international safety standards and is used within its normal operating parameters, cooling measures are generally unnecessary. If you feel that the temperature of the dc power adapter is excessively high, it is advisable to change the heat dissipation environment. Avoid using the dc adapter in environments with excessively high temperatures or confined spaces, and consider reducing its operational load.    Although the heat generated by the power adapter under normal operating conditions is within acceptable limits, prolonged use in high-temperature environments can accelerate the aging of electronic components. This may reduce the operational lifespan of the device, or due to inadequate heat dissipation and excessive heat buildup, which may damage the adapter's electronic components. Such damage can compromise the electrical performance of the equipment and even pose safety risks. Therefore, to ensure the proper functioning of electrical appliances and the safety of the user, it is crucial to maintain appropriate control over the temperature of the power adapter. In these cases, implementing cooling measures should be considered.    How to cool a power adapter? Cooling methods for a power adapter can include the following aspects:   1.Provide a good ventilation environment While the power adapter is generating heat, it also needs to continuously draw in air for cooling. Therefore, the placement of the power adapter and the ventilation conditions of the surrounding environment will affect the cooling effect. To improve ventilation efficiency, it is recommended to place the power adapter in a well-ventilated area, such as a certain distance away from walls and obstacles, and not to place it on heavy objects or cover the heat dissipation ports (some power adapters have heat dissipation ports on the side or back of the adapter). 2. Use a power adapter cooler A power adapter cooler is a device that can lower the temperature of the power adapter and effectively provide cooling and ventilation conditions, reducing the surface temperature of the power adapter. Many power adapter coolers use different cooling solutions, such as fan cooling and aluminum alloy cooling, with prices ranging from tens to hundreds of yuan. Of course, there are certain limitations to using a power adapter cooler. When purchasing, pay attention to parameters such as the adapter model and fan size. 3. Pay attention to the ambient temperature The ambient temperature also has a significant impact on the temperature of the power adapter. For example, in summer or when using a computer in a room without air conditioning, the ambient temperature may reach over 30 degrees Celsius, causing the surface temperature of the power adapter to rise significantly. Therefore, in such situations, it is advisable to keep the ambient temperature comfortable, such as opening windows for ventilation or using other cooling devices in a room without air conditioning.  In general, under normal usage conditions, electrical appliances’ adapters do not require special cooling. However, in some special circumstances, appropriate cooling measures are still necessary. By providing better ventilation conditions, using power adapter coolers, or paying attention to the ambient temperature, the power adapter can be effectively protected and its lifespan extended.       KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.  

In today's society, electronic equipment has become a part of our lives, and the dc power adapter as a power supply equipment for electronic products is also indispensable, the ac/dc power adapter is divided into two types of power adapter for desktop and wall mount power adapter according to the connection method. A wall mount power adapter can also be called a plug-in wall power adapter, which, as the name suggests, is a power conversion device that directly plugs into a wall socket to convert alternating current into the direct current required by the device.     Wall Mount Power Adapter Advantages  1) Compact and portable: The compact design of the wall-mounted power adapter is small in size and light in weight, so it has the characteristics of easy to carry, whether it is at home or out of the house, it is very convenient, neither takes up a lot of space nor has a great weight burden. 2) Neat and beautiful: Due to its wall-mounted design, the product can be installed directly on the wall, so that the scene of cable on the ground can be avoided, so that the use of the space looks more tidy and beautiful, and the feeling is more comfortable. 3) Efficient and fast: individual wall-mounted power adapters use advanced charging technology, which can quickly charge the equipment, save charging time and improve efficiency, especially suitable for business trips and tourism. 4) Safe and reliable: The wall-mounted design can greatly reduce the risk caused by dragging or wear of the wire, especially in the case of children at home, reducing the risk of children's contact with the power adapter. 5) Easy to install: The compact design of the wall-mounted power adapter allows its users to easily install it according to the product instructions, and there is no need to worry about the size of the problem.     Wall Mount Power Adapter Scope Of Application The scope of application of wall mount power adapter includes but is not limited to the following mentioned: 1）Smart home devices: Some lightweight or small smart devices may use a wall-mounted power adapter. If the smart camera is generally installed outdoors or indoors, it can be installed on the wall directly using the wall mount or power adapter; Smart lighting systems, smart bulbs or lamps in the home need to be powered by a wall-mounted power adapter, especially if electricity cannot be taken directly from a wall outlet; Smart door locks, the use of wall-mounted power adapters can not only ensure that the door has enough power supply, but also make the door look more concise at the same time, it can also avoid the security risks and visual interference caused by exposed wires. There are also smart home devices like smart home sensors, smart speakers and so on. 2）Household appliances: The wall-mounted power adapter can also be applied to small household appliances, such as air purifiers, laptops, humidifiers, electric toothbrushes, coffee makers, etc. Its wall-mounted design ensures function while making the entire space look more clean and comfortable. 3）Network devices： like routers, switches, and modems also often use wall-mounted power adapters to convert AC power to DC power for their use. 4）IOT devices: Internet of Things (loT) devices, such as smart speakers, thermostats, and security cameras, often rely on wall-mounted power adapters as a power source.     KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market. Product production show video  

In the field of communications, how do communications equipment stabilise with a power supply to maintain its normal use, such as software and communication channels? Switching power supplies are widely used in these communication systems by communication equipment manufacturers and carriers due to their high efficiency and reliability. The following article describes the specific applications in the field of communication and the advantages and characteristics of switching power supplies in the field of communication.   Applications in the field of communications Communication base station : As a key component of the communication network, the communication base station is like a solid fortress that escorts the transmission of information at all times. And this important position requires a continuous and powerful power supply. The switching power supply is like a right-hand man, with its high efficiency, high reliability and wide input voltage range and other significant advantages, perfectly suited to the power needs of communication base stations. It is like the power source of communication base stations, injecting a steady stream of vitality into the smooth flow of information.   Communication equipment manufacturers : When communication equipment manufacturers carefully build communication equipment, switching power supplies often become the ideal power supply choice for equipment. It adds luster to communication equipment with its unique charm of high efficiency, high reliability, small size and light weight. Like a shining pearl, it improves the performance of communication equipment and enhances its competitiveness in the market.   Data center : The data center is like a huge information treasure house, storing and processing massive data. The reliability of the power supply is extremely high. The switching power supply can play its role, through the clever redundant design and parallel use, etc., to build a highly reliable power supply system, like a loyal guard, always guarding the stable operation of the data center, and fully meeting the strict needs of the data center.     Characteristics Of Switching Power Supplies In The Field Of Communications Output voltage has a short time fixed and stability : switching power supply in the output voltage library fixed more stable at the same time more short time fixed. High efficiency : high-frequency switching technology as the carrier of the switching power supply, so that the power conversion rate is high, therefore, the power device is small, high efficiency. For example, compared with DC switching, heat transfer power supply efficiency is usually 80% or higher, or even can be increased. This room temperature requirement becomes smaller as far as consumption is concerned; regarding software and hardware stability and reliability.   Still small and light : Since the switching power supply adopts high-frequency switching technology, the weight and size of components such as transformer and filters are greatly reduced. So that the switching power supply can be easily installed in the communication equipment, and the space can be saved, and the communication equipment integration degree can be improved.     Wide Input Voltage Range : The switching power supply can be suitable for a wide input voltage range, and the working stability is high in various grid environments. This is vital for communication equipment manufacturers and operators, because communication equipment may have to work in diverse region and environment, and the grid voltage in different region may vary greatly.   As a kind of efficient and reliable power supply equipment, switching power supply has a wide range of application prospects in the field of communication. Communication equipment manufacturers and operators can reduce operation costs, improve the reliability and stability of communication equipment, and meet the needs of the continuous development of communication equipment by choosing suitable switching power supply products.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.

Under our proprietary brand KELIC, we offer innovative and reliable power solutions, while also providing OEM and ODM services to meet the needs of different customers. At the same time, our dc power adapter have passed the relevant safety certification, for example ETL, FCC, GS, CE, CB, BSMI, CCC, CQC, SAA, KC .So there is a certain guarantee in terms of quality.    BSMI (Bureau of StandardsMetrology and Inspection) BSIM certification is the "Bureau of Standards, Metrology and Inspection" certification, which is a product certification system in Taiwan. The certification system is implemented by Taiwan's Standards, Metrology, Inspection and Quarantine Agency. BSMI certification mainly includes product safety, electromagnetic compatibility and other aspects of the test and evaluation. Electromagnetic Compatibility (EMC) and SAFETY (SAFETY) are the two core test items. Electromagnetic compatibility mainly examines whether electronic products can operate stably in a specific environment, without excessive interference, and without posing a threat to other devices or systems. The safety is more concerned about whether the design and manufacturing of the product itself is ergonomic, and whether it can ensure the safety of the user in the process of use.Products can only be sold and used in the Taiwan market after they have been tested and meet the relevant standards. This certification is not only the inspection of product quality, but also the adherence to environmental protection. If you obtain the BSMI certificate, you can lay a solid foundation for the international development of enterprises.       ETL (Electrical Testing Laboratories) ETL's full name is Electrical Testing Laboratories‌, which was founded by American inventor Thomas Edison in 1896. ETL is the most dynamic safety certification mark in North America, with wide visibility and recognition in North America, and the product representatives who obtain the ETL mark meet the mandatory standards in North America and can successfully enter the North American market for sales. The purpose of ELT certification is to: 1) Ensuring product safety: ELT certification is the testing and evaluation of related products, including electrical safety, mechanical safety, electromagnetic compatibility and other aspects of the inspection to ensure that the product will not cause harm to users or the environment during normal use. 2) Improve market competitiveness: Products with ELT certification conform to international recognition, improve the credibility of the product and enhance the market competitiveness, which can make consumers more comfortable to buy products. 3) Compliance with regulatory requirements: ETL certification helps companies ensure that their products meet local regulations and compliance requirements, avoiding mis-selling and possible legal risks. 4) Facilitating trade and imports: ETL certification is one of the important requirements for entering the US and Canadian markets. By obtaining ETL certification, products can successfully enter the North American market, expand trade opportunities, and open up new export markets. In short, ETL certification is an important sign to ensure the safety and compliance of electrical products.   FCC (Federal Communications Commission) The Federal Communications Commission is an independent agency of the United States government, responsible for the management and regulation of all radio communications in the United States, including radio, television, satellite, mobile phones, the Internet and so on. For electronic products that want to enter the U.S. market, FCC certification is a legal requirement and an important compliance step for entering the U.S. market. FCC certification and SDOC and ID two kinds: ‌FCC SDOC certification ‌ refers to the supplier's declaration of conformity, mainly applicable to non-RF equipment, such as household appliances, lamps, power supplies, computer peripherals, monitors, etc. ‌FCC ID certification is a device identification. Each device that passes the certification is assigned a unique FCC ID number. It is mainly applied to wireless products, such as Bluetooth products, tablets, wireless keyboards, wireless mice and so on.     CE (Conformité Européenne) CE stands for Conformite Europeenne.CE certification, that is, limited to the basic safety requirements of products that do not endanger the safety of humans, animals and goods, rather than the general quality requirements, the coordination directive only specifies the main requirements, the general directive requirements are standard tasks. Therefore, the accurate meaning is that the CE mark is a safety conformity mark rather than a quality conformity mark. Are the "main requirements" that form the core of the European directive. The "CE" mark is a safety certification mark that is regarded as a passport for manufacturers to open and enter the European market. In the EU market, the "CE" mark is a mandatory certification mark, whether it is a product produced by an enterprise within the EU, or a product produced in other countries, in order to circulate freely in the EU market, it must be affixed with the "CE" mark to show that the product meets the basic requirements of the EU's "Technical coordination and standardization only new methods" directive. This is a mandatory requirement for products under EU law. In short, CE certification has important strategic significance and economic value for enterprises, and is an important way for enterprises to improve product quality, expand the international market, strengthen management and avoid risks.   GS (Geprufte Sicherheit) The meaning of GS is the German "Geprufte Sicherheit" (Safety has been certified), also means "Germany Safety" (German safety). GS certification is a voluntary certification based on the German Product Safety Law (GPGS), which is tested in accordance with the European Union unified standard EN or the German industrial standard DIN, and is a recognized German safety certification mark in the European market. GS certification is an important safety mark, which proves that the results obtained in the relevant technical specifications and tests meet the basic requirements of the producing country, which means that the quality of its products has passed the certification of Germany or internationally recognized safety agencies, and can be sold in the international market. At the same time, GS certification provides an important basis for consumers, consumers can trust that the products certified by GS have basic safety and reliability. Consumers can obtain the safest use experience by purchasing products with this logo. The final GS certification also helps merchants and enterprises to establish a good image in the global market. Businesses and enterprises in the process of obtaining GS certification need to meet the strict production, quality management and testing requirements in Europe, such high standards to promote the enterprise to improve quality, technical level and after-sales service quality, certification also played a role in supervision.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market. Packing video    

In the vast arena of industrial automation, a stable and reliable Industrial Power Supply is the key to ensuring the smooth running of production processes. Our switch mode power supply developed and manufactured by Kelic are specially designed for industrial automation to meet your demanding power requirements. The following is an introduction to some of the features and advantages of our switching power supply.       First, excellent anti-interference ability Because the industrial environment is complex and changeable, and electromagnetic interference is everywhere. In order to solve and overcome this problem, our team prepared a variety of different solutions during research and development, and finally we chose to use advanced anti-interference technology, because this technology can effectively resist electromagnetic interference from the motor, frequency converter and other equipment to ensure that you provide pure and stable power for your automation control system. No matter how much electromagnetic interference exists in your plant, our switching power supply can be as stable as Tazan to ensure the normal operation of equipment.   Second, the wide input voltage range of switching power supply Different areas of the grid voltage is sometimes unstable, in order to let your equipment in a variety of circumstances can work properly, we have this switching power supply input voltage range can be wide. Whether the voltage is high or low, our KELIC power supply can automatically adjust to provide a stable output voltage for your equipment.       Third,the stability and reliability of the switching power supply The stability and reliability of KELIC's switching power supply is quite feasible. Industrial equipment generally have to operate continuously for a long time, so the requirements of the power supply that can be high to go. Our power supply from the beginning of research and development, to production, and then to the final product out, that is through a strict quality inspection and long time reliability test. Only in this way, with great stability and durability, we can rest assured that the hands of customers. This switching power supply ah, even at high temperatures, high humidity, dust and these harsh environmental conditions, can also work steadily, to provide reliable power to industrial automation systems, the old reliable!   Fourth,extremely high level of protection In some special industrial environments, such as in special environments such as moisture, dust or corrosive gases, ordinary power supplies may not be able to resist the impact of the special environment and therefore cannot work normally. In order to overcome this problem, we have improved and developed many times, and finally produced a switching power supply with a high level of protection, which can effectively prevent the intrusion of dust, moisture and corrosive substances, so that you can ensure that the power supply can still operate reliably in harsh environments, providing solid power support for your equipment.     Fifth,high efficiency energy saving Under the current background of the world attaches great importance to energy saving and environmental protection, our switching power supply actively introduces advanced energy-saving technology, and its conversion efficiency is also considerable. Our switching power supply can reduce energy loss, which can really save you a lot of operating costs. In addition, efficient power supplies generate significantly less heat during operation and this not only helps to extend the service life of the power supply itself, but also creates more value for your industrial automation system. For example, in long-running industrial production lines, using our switching power supplies can reduce downtime due to power failures, improve productivity and reduce maintenance costs.         KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market. Choosing KELIC switching power supply is choosing a stable, reliable and efficient industrial automation power supply. Let us work together to provide strong power support for your industrial automation business and create a better future!

The power supply can be divided into two linear power supplies and switching power supplies according to the working principle, and the following is a brief introduction to the two power supplies.   Linear Power Supply The linear power supply is designed so that it uses a transformer to bring down the input voltage. Then, the voltage is made into direct current by rectifying it. After that, this direct current voltage is filtered to make the waveform nicer. Linear power supplies use linear regulators to keep the output voltage constant. These linear regulators get rid of any extra energy by making heat.   Switching Power Supply The design of a switching power supply is a newer way that came about to deal with a lot of the problems with linear power supply design, like transformer size and voltage regulation. In switching power supply designs, the input voltage isn't reduced in the usual way. Instead, it's rectified and filtered at the input. Then, the voltage goes through a chopper thing that turns it into a high-frequency pulse train. Before it gets to the output, the voltage is filtered and rectified again.       A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply . Switching power supplies, like other power supplies, take power from DC or AC power supplies and provide it to a DC load, while obtaining power and changing the characteristics of voltage and current. Unlike linear power supplies, SMPS 'through-tube always switches between full on and full off with low dissipation. It spends almost no time in a highly dissipative transition state. In this way, the switching power supply will waste less energy. A linear power supply, on the other hand, controls the output voltage by continuously dissipating power in the through-tube. Switching power supplies with high electrical efficiency are a very important advantage.   Switching power supplies are definitely smaller and lighter compared to linear power supplies.   Know why? Because the transformer in a switching power supply is very small! And that's because it works at a really high switching frequency. This frequency can range from several hundred kHz to several MHz. In contrast, the transformer in a linear power supply uses the mains frequency of either 50 or 60 Hz. Despite the reduced transformer size, the power supply topology and electromagnetic compatibility requirements in commercial designs result in a usually much greater component count and corresponding circuit complexity.       Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight is required. They are, however, more complicated; Switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply. Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market.      

In the electronic devices, industrial power supply play a vital role as power supply equipment. It converts AC power into stable DC power and provides reliable power for various electronic devices. And choosing a suitable industrial power supply is an important device to ensure the stable operation of electronic equipment. There are so many industrial power supplies on the market, so how to choose a right industrial power supply? Here are some tips: First, it is necessary to understand the power needs of your industrial equipment. Make sure the industrial power supply you’re reviewing can deliver the required voltage and current levels for the machinery it will power without overloading or underpowering it. This extends beyond pure voltage and current aspects and into other power-related specifications that should be noted by the machinery’s original equipment manufacturer. A critical aspect of power supplies is that they maintain a consistent output voltage even if the input voltage fluctuates. The stability of voltage delivered by an industrial power supply is key to preventing equipment malfunctions and data loss. As with nearly every any other critical piece of equipment in your facility, power supplies are now capable of being remotely monitored to assess their operating status and prevent unexpected downtime. An inadequate or excessive power supply can lead to inefficiencies, equipment malfunction, or even damage. It is advisable to calculate the power requirements precisely and factor in 25 percent for spare capacity and optimal performance. For loads with large current at startup, such as motors, a power supply that can withstand instantaneous large currents should be selected.   Secondly, the stability and reliability of the industrial power supply are crucial. A stable power supply can ensure the normal operation of the equipment and reduce the risk of failure and damage. For some high-precision equipment, they have relatively high requirements for the stability of the power supply. In this case, it is necessary to select a industrial power supply with good voltage regulation performance and small power ripple. Ripple refers to the fluctuation of the output voltage. Excessive ripple and noise will have an adverse effect on the normal operation of the equipment. Then, the efficiency of the industrial power supply refers to the proportion of input power energy converted into output power energy. A higher efficiency industrial power supply can reduce energy loss in the process of converting power, thereby saving energy and reducing heat generation. A high-efficiency industrial power supply can generate less heat during operation, which helps to improve the reliability of the equipment. Therefore, try to choose a high-efficiency industrial power supply when selecting. In addition, the working environment temperature of the power supply should also be considered. The power supply working under high temperature ambient temperature needs to reduce the output to avoid overheating and causing performance degradation or damage.     If the heat dissipation conditions of the use environment are poor, it is necessary to select a industrial power supply with better heat dissipation performance. Finally, the industrial power supply should have necessary protection functions, such as overvoltage protection (OVP), short-circuit protection etc., to ensure timely response in abnormal situations and protect the circuit safety.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply. Our commitment to quality and customer satisfaction has helped us build a good reputation in the international market.  

The constant current power supply is a type of power device that can provide a stable current output, regardless of load changes, input voltage fluctuations, or other external environmental changes. The constant current power supply can ensure that the output current value remains unchanged. It keeps the output current constant by controlling the output voltage.A constant current power supply can provide a stable current output within its normal operating range (i.e., when the load resistance is less than a certain critical value and the output voltage of the power supply has not reached its upper limit). This stable output current value is limited by a safety upper limit (set value) to prevent overcurrent damage to the equipment.   The working principle of a constant current power supply Modern desktop power supplies typically monitor the output and can determine in real time how much current is being drawn by the load. For a normal voltage source, when the load resistance is reduced, it can lead to a sharp increase in current, which may damage the load. In contrast, a constant current power supply uses its internal feedback control loop to actively reduce the output voltage when it detects an upward trend in current. This way, the current is precisely maintained at its set value, thereby avoiding the risk of uncontrolled current flow. In this mode, the power supply automatically adjusts its output voltage to ensure that the current remains at the set value. This is typically achieved through a feedback control loop, where the output current is sensed and compared to a reference value. The sensed current deviates from the reference, the control loop adjusts the power supply's output voltage to correct the deviation and maintain the desired constant current.   The benefits of using a constant current power supply for a hydrogen water machine  First, In constant current (CC) mode, since the current (I) remains constant, the electrolysis power (P) is directly proportional to the dynamic equivalent resistance (R) of the electrolysis cell. This ensures that the power input does not fluctuate significantly due to variations in the grid voltage or changes in water quality, thereby making the hydrogen production process more stable . This stability of the current offers several advantages:By maintaining a stable rate of hydrogen production (which is directly proportional to the current), a constant current power supply helps to ensure a more uniform and consistent concentration of hydrogen water produced by the mechanism. Additionally, the stability of the current reduces the impact on the electrodes and secondary reactions, which in the long run helps to maintain the efficiency of the electrolysis cell and the quality of the produced gas. Then, it ensures the stability of the electrolysis process. A constant current power supply dynamically adjusts the output voltage to automatically compensate for changes in water quality and maintain a stable current, ensuring consistent hydrogen concentration. Also, Current fluctuations or uneven distribution can lead to excessively high local current densities in the electrolysis cell, causing localized overheating (hot spots). By stabilizing the total current at a set value, a constant current power supply avoids significant fluctuations in current, resulting in more uniform heat generation and distribution. This reduces the risk of hot spots forming and protects the materials of the electrolysis cell. Finally, it protects the electrode materials and extends the lifespan of the equipment. The electrodes in the electrolytic cell are prone to corrosion or scaling under excessive current density. The constant current power supply limits the maximum current to avoid electrode overload and reduce side reactions in electrolysis (such as oxygen evolution competition reactions), thereby extending the lifespan of the electrodes.    KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply. Our commitment to quality and customer satisfaction has helped us build a good reputation in the international market.      

Whether you’re going camping, taking a road trip, or just need some place cool to store your groceries, portable car refrigerators are relatively affordable and extremely handy to keep in your electric vehicle. Most car refrigerators are not charged by electricity, but are connected to the car's power supply to work. So the operation of the car refrigerator cannot do without a power adapter. But how to choose a suitable power adapter for the car refrigerator? Here are some tips: 1. Choosing the right power option not only ensures stable operation but also maintains food and beverage freshness in environments without reliable power sources. Car refrigerators typically support multiple power options, including 12V or 24V DC from vehicle batteries, AC adapters for household power, and some models even have compatibility with solar panels for recharging. It is recommended to use a power adapter or converter that matches the vehicle battery voltage to power the car refrigerator. Most car refrigerators on the market now are designed to operate on 12V/24V DC. If you have a 12V vehicle, it is a wise choice to choose a 12V car refrigerator and power cord. If your vehicle is a 24V system, you should also choose the 24V car refrigerator. 2. The current requirement of an ordinary car refrigerator is usually between 5 and 10 amps. The specific value will depend on its size, capacity, operating environment, etc. For example, if you plan to use the car refrigerator for a long time, it is recommended to choose a larger current capacity to ensure its stable operation. You can also refer to the refrigerator’s label.  3. You also need to consider the space in your vehicle. It’s better to choose a smaller adapter if space is limited. And you’d better choose the power adapter’s cable is long enough, when you use it later, you will find that the long cable will not limit your usage distance. 4. Make sure that the adapter complies with international safety standards and has the necessary certifications, such as CCC, CE, SAA, ROHS and FCC to ensure safe and legal use in your region. Also, you should check the correct polarity and size of the DC connector, and if there is any looseness when connecting with the car refrigerator.     KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapters, Battery Chargers and Industrial Power Supply. Our commitment to quality and customer satisfaction has helped us build a good reputation in the international market.

Wall Mount Power Adapter DC Power adapter are divided into wall mount power adapter and desktop power adapter. The main difference between a desktop power adapter and a wall power adapter is that the power adapter for desktop needs to be connected to the AC power cord of the host. A wall power adapter is a power adapter whose body can be plugged directly into a socket. A wall-mounted power adapter plugs into a standard wall outlet and converts alternating current from the wall outlet to the direct current required and suitable for the device. How a Wall Mount Power Adapter Works The working principle of the wall-mounted adapter is to rectify and regulate the input AC power, and convert the output to the direct current required by the equipment, specifically including the following steps: 1） Input and voltage rectification: The power adapter receives alternating current from the socket through a rectifier circuit. The circuit typically contains diodes that convert alternating current into pulsating direct current. In this process, the voltage waveform is "shaved" off the negative half, leaving only the positive half. 2） Filtering: The purpose of this step is to get smooth DC, because the rectified current is pulsating DC, so the filter is needed to remove the AC component of pulsating DC. 3） Voltage regulator: The voltage and current of the direct current are adjusted to the required level by the regulator. Common voltage regulation methods include linear voltage regulation and switching voltage regulation. The linear regulator controls the output voltage by adjusting the resistance. The switching regulator adjusts the amount of energy transferred to the load by rapidly switching the transistor, so as to achieve the purpose of efficient voltage regulation. 4） Output: Finally, the direct current after processing in the above steps is output to the device. Finally, this process will also include some safety protection such as over-voltage protection, over-temperature protection, short circuit protection, etc., in order to prevent damage to the connected equipment during use. Wall-mounted power adapter has many advantages such as space saving, neat and beautiful, easy to carry, energy saving and high efficiency, etc. Under the premise of ensuring functionality, it also provides better space utilization efficiency and safety, so it is a recommended choice in home and office places.   KELIC was established more than 20 years ago, specializing in the development and production of AC/DC Power Adapter, Battery Charger and Industrial Power Supply.  Our commitment to quality and customer satisfaction has helped us build a  good reputation in the international market. Our video above the show