Dedicate to Produce High Quality Power Adapters!

OuShangMei Technology Co.,Ltd

Shenzhen Oushangmei Technology Co., Ltd. is a professional manufacturer and developer of AC/DC power adapters, LED power supplies, waterproof power supplies, POE injectors, POE power supplies, phone chargers, etc. Our factory has advanced production and testing equipment, a first-class sales team, and an independent high-level R&D team. With more than 11 years of experience in China, our products have passed UL/cUL, 3C, cETL 1310, CE, FCC, KC, SAA, C/tick, CB, TUV/GS, ROHS, and other certifications.

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Wall-Mounted Power Adapters: What You Need to Know
Wall-mounted power adapters, also known as wall warts, are power supplies that convert AC voltage from the wall outlet to a lower DC voltage for various electronic devices. They are widely used in homes and businesses for applications such as laptops, routers, chargers, cameras, etc. In this article, we will introduce some features and benefits of wall-mounted power adapters and how to choose the right one for your needs.

Features of Wall-Mounted Power Adapters
Wall-mounted power adapters have several features that make them convenient and reliable for powering your devices. Some of these features are:

Compact and portable: Wall-mounted power adapters are designed to plug directly into the wall or a power strip socket without taking up much space or requiring additional cords. They are easy to carry around and use in different locations.
Regulated and stable output: Wall-mounted power adapters have built-in circuits that regulate the output voltage and current to ensure a stable and consistent power delivery to your devices. They also have protection features such as over-voltage, over-current, short-circuit, and over-temperature to prevent damage to your devices or the power adapter.
Energy-efficient and eco-friendly: Wall-mounted power adapters comply with various energy efficiencies standards such as Level VI in the US, ErP in the EU, and MEPS in Australia. These standards require the power adapters to have low standby power consumption and high conversion efficiency, which can save energy and reduce carbon emissions.
Interchangeable and universal input: Wall-mounted power adapters can have fixed or interchangeable AC plugs that fit different wall outlets in different regions. They can also accept a wide range of input voltage from 90 VAC to 264 VAC, which means they can work in most countries worldwide.
Benefits of Wall-Mounted Power Adapters
Wall-mounted power adapters offer several benefits for users and manufacturers of electronic devices. Some of these benefits are:

Cost-effective and easy to use: Wall-mounted power adapters are relatively inexpensive and easy to use compared to other types of power supplies. They do not require installation or wiring and can be plugged in and unplugged quickly and safely.
Flexible and versatile: Wall-mounted power adapters can provide different output voltage and current levels to suit different devices and applications. They can also be customized with different DC output connectors and cord lengths to match your device's specifications.
Safe and compliant: Various international and domestic authorities test and certify wall-mounted power adapters to ensure their safety and quality. They meet the requirements of ISO9001 quality management system certification; China CCC certification; EU CB certification, CE certification, GS certification, RoHS certification; US FCC certification, ETL certification, UL certification; Australia C-tick certification; Korea KC certification, KCC certification and so on.
How to Choose a Wall-Mounted Power Adapter
When choosing a wall-mounted power adapter for your device, you need to consider several factors, such as:

Power range: The power range of a wall-mounted power adapter is determined by its output voltage and current. You must choose a power adapter that can provide enough power for your device without exceeding its maximum ratings. For example, if your device requires 12V 2A of power, you need a power adapter to deliver at least 24W (12V x 2A) output power.
AC plug type: The AC plug type of a wall-mounted power adapter depends on the region where you will use it. Choose a power adapter with a compatible AC plug with the wall outlet in your location. For example, if you are in China, you need a power adapter with a Chinese plug type.
DC output connector: The DC output connector of a wall-mounted power adapter connects to your device's input port. Choose a power adapter with a matching DC output connector and your device's input port. For example, if your device has a micro USB input port, you need a power adapter with a micro USB output connector.
Efficiency standard: The efficiency standard of a wall-mounted power adapter indicates its energy performance and environmental impact. You must choose a power adapter that meets or exceeds your region's or market's efficiency standard. For example, if you are in the US, you need a power adapter that complies with Level VI efficiency standards.
Conclusion
Wall-mounted power adapters are common and valuable power supplies for various electronic devices. They have many features and benefits that make them convenient, reliable, energy-efficient, and eco-friendly. When choosing a wall-mounted power adapter for your device, you must consider its power range, AC plug type, DC output connector, and efficiency standard.

If you are looking for high-quality wall-mounted power adapters for your devices or applications, you can check out Oushangmei Technology's products. Oushangmei Technology is a professional manufacturer of switch-mode power adapters, USB chargers, and PD fast-charge power adapters. They have a series of wall-mounted power adapters with power range from 12W to 48W, 5V1A/2A/3A, 9V1A/2A/3A, 12V1A/2A/3A, 24V1A/1.5A, etc. Their products are of high quality and have passed many international and domestic authoritative certifications. You can visit their website or contact them for more information.

WALL MOUNT ADAPTER

Oushangmei Technology., Ltd produces a series of wall-mounted power adapters, ranging from 12W to 48W, with various output voltages and currents, such as 5V/1A/2A/3A, 9V/1A/2A/3A, 12V/1A/2A/3A, 24V/1A/1.5A, etc. Our high-quality products have obtained many authoritative certifications from domestic and international agencies, including ISO9001, 3C, CB, CE, FCC, GS, ETL, UL/cUL, C-tick, KC, KCC, RoHS, and more.

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DESKTOP TYPE ADAPTER

Oushangmei Technology supplies a series of desktop-type power adapters, Power rate 6-96W, voltages of 12V & currents from 3-8A. We also have 96W-150W PFC function power adapters with voltages of 12V and currents from 9-12A. We strictly follow the ISO9001 quality management system, and our power adapters work stably and reliably. Our products have passed various certifications, such as CB, 3C, UL, cUL, FCC, PSE, GS-TUV, EMC-CE, LVD-CE, RCM, SAA, C-TICK, S-MARK, E-MARK, ROHS.

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Features and Advantages of Desktop Power Adapters and PFC Power Adapters
Desktop power adapters are power devices that convert AC power to DC power, usually used to provide stable DC voltage for various electronic devices. Desktop power adapters are characterized by large sizes but high power, which can meet the needs of high-power devices. Desktop power adapters have two series, one is the ordinary model 36W-96W, 12V/3A/4A/5A/6A/7A/8A, and the second series is the high-power PFC power supply 96W-150W. This article will introduce the features and advantages of desktop and PFC power adapters and how to choose the correct desktop power adapter.

Features of Desktop Power Adapters
Desktop power adapters have the following features:

Efficient and stable output: Desktop power adapters use advanced switching power supply technology, which can convert AC power to constant DC voltage and adjust the output voltage and current through built-in control circuits, ensuring the stability and consistency of output power. Desktop power adapters also have protection functions such as over-voltage, over-current, short-circuit, over-temperature, etc., which can prevent damage to the device or the power supply itself.
Wide input range: Desktop power adapters can accept a wide input voltage range from 90VAC to 264VAC, which means they can be used in most countries and regions without worrying about input voltage mismatch.
Diverse output specifications: Desktop power adapters can provide different output voltage and current levels to suit different devices and applications. For example, the first series is 36W-96W, 12V/3A/4A/5A/6A/7A/8A, the second series is 96W-150W PFC power supply, 12V9A/10A/11A/12A. Depending on device specifications, desktop power adapters can also be customized with different DC output connectors and cord lengths.
Comply with safety standards: Desktop power adapters have passed various international and domestic authoritative certifications to ensure their safety and quality. They comply with ISO9001:2015 quality management system certification; China CCC certification; EU CB certification, CE certification, GS certification, RoHS certification; US FCC certification, ETL certification, UL certification; Australia C-tick certification; Korea KC certification, KCC certification, and so on.
Features of PFC Power Adapters
PFC (Power Factor Correction) is a technology that improves AC input power utilization efficiency. The power factor is the ratio of input adequate power to input apparent power, reflecting how much AC input power can be converted into DC output power. Ideally, the power factor should be 1, but due to the presence of reactive power and harmonic components in the AC input power, the power factor is lower than 1. Low power factor causes the following problems:

Increase line losses: Low power factor means that apparent input power is higher than adequate power, which causes more invalid power and harmonic components in the line, resulting in increased line losses and heating.
Reduce system capacity: Low power factor means that apparent input power is higher than adequate power, which causes system capacity to be occupied by invalid power, thereby reducing system capacity.
Affect power quality: Low power factor means that apparent input power is higher than adequate power, which causes the supplier to provide more apparent power to meet user demand, thereby increasing supplier cost and burden. At the same time, invalid power and harmonic components also cause interference and pollution to other users.

To solve the problem of low power factor, PFC technology is introduced into desktop power adapters. PFC technology improves the power factor by adding a switching converter at the AC input end to adjust the input current waveform, making it in or close to phase with the input voltage waveform. PFC technology has two types:

Passive PFC: Passive PFC improves PF by filtering out harmonic components with a passive filter at the AC input end and compensating for the invalid inductive or capacitive reactive power required by invalid inductive or capacitive loads. Passive PFC is usually used in low-power applications, but its effect is limited.
Active PFC: Active PFC improves PF by adding a switching converter at the AC input end to adjust the input current waveform, and tracking the input voltage waveform with feedback control, making it in phase or close to phase with it. Active PFC is usually used in high-power applications, and its effect is best.
PFC technology can bring the following benefits:

Save energy: Improve AC input power utilization efficiency, and reduce line losses and heating.
Increase system capacity: Reduce invalid power occupying system capacity.
Improve power quality: Reduce interference and pollution to suppliers and other users.
Comply with environmental requirements: Many countries and regions have strict regulations on the minimum power factor or full harmonic content of products. For example, the EU requires products to comply with the EN61000-3-2 standard, with a minimum practical value of 0.9 or a minimum average of 0.95.
How to Choose Desktop Power Adapters
When choosing desktop power adapters, you need to consider the following factors:

Output specifications: Output specifications include output voltage, output current, output connector, and other parameters. You must choose output specifications that match or are compatible with your device. For example, if your device needs 12V 5A DC power, choose a desktop power adapter that can provide at least 60W (12V x 5A) output power.
Input range refers to the AC input voltage range that desktop power adapters can accept. It would be best to choose a desktop power adapter that can adapt to different regions and countries’ input voltage. For example, if you want to use it in China, you must choose a desktop power adapter that accepts 220VAC input voltage.
PFC function refers to whether desktop power adapters have a power factor correction function. You need to choose whether you need PFC function desktop power adapters according to your device’s power and the environmental requirements of your region. For example, suppose your device’s power is high, or your region has strict regulations on the minimum power factor of products. In that case, you must choose desktop power adapters with the PFC functions.
Safety certification: Safety certification refers to whether desktop power adapters have passed relevant safety standards certification of countries and regions. It would be best if you chose desktop power adapters with corresponding safety certifications according to your device’s use and the legal regulations of your region. For example, you must choose desktop power adapters with CE certification to sell or use in the EU.
Conclusion
Desktop power adapters are helpful to power devices with features such as efficient and stable output, wide input range, diverse output specifications, and compliance with safety standards. PFC technology improves AC input power utilization efficiency by saving energy, increasing system capacity, improving power quality, and complying with environmental requirements. When choosing desktop power adapters, you must consider factors such as output specifications, input range, PFC function, safety certification, etc.

If you are looking for high-quality desktop or PFC power adapters, you can check out Oushangmei Technology’s products. Oushangmei Technology is a professional switching power adapter manufacturer specializing in the development, design, production, sales, and technical consulting services of switching power adapters, USB chargers, and PD fast-charging power adapters. They supply a series of desktop power adapters: The first series is 36W-96W,12V/3A/4A/5A/6A/7A/8A, the second series is 96W-150W PFC power supply, 12V9A/10A/11A/12A. Their products are in the mid-to-high-end power adapters’ design concept and production standards, following the ISO9001:2015 quality management system framework. Their power adapter products are stable and reliable, anti-interference and electromagnetic compatibility comply with international electrical standards, energy-saving, and environmentally friendly green products. Their products have passed CB, CCC, UL, CUL, FCC, PSE, GS-TUV, EMC-CE, LVD-CE, RCM, SAA, C-TICK, S-MARK, E-MARK, ROHS, CEC, DOE, ERP, and other global multi-country safety certifications. You can visit their website or contact them for more information.

One Platform. Limitless Potential.

For more than 11 years, Oushangmei Technology Co.,Ltd has been a trusted global partner for businesses looking to grow online.

INTERNATIONAL CERTIFICATION

Our products have obtained authoritative certifications from domestic and international agencies, including ISO9001, 3C, CB, CE, GS, RoHS, FCC, ETL, UL/cUL, C-tick, KC & KCC.

ADVANCED EQUIPMENT

Our production capacity can reach 90,000 pieces per month. Our workshop has various devices, such as a plug-in line, wave soldering, power supply comprehensive testing line, fully automatic aging room, laser engraving machine, high-performance power analyzer, and oscilloscope.

The Production Process of Power Adapter A power adapter is a product of modern power electronics technology, which uses the control of the switch tube to turn on and off the time ratio to maintain a stable output voltage. With the progress of power electronics technology, power adapter technology also advances with the times, with the advantages of high efficiency, low power consumption, small size, lightweight, etc., representing the development direction of regulated power supply. In addition to product design and development, production and manufacturing are important links to ensure the quality of power adapters. The completed power adapters can achieve the expected performance and effects only by adopting rigorous production processes and standards. The production process of the power adapter can be roughly divided into the following steps: pre-production preparation, coil making, component soldering and assembly, cleaning, inspection, potting, casing, Marking, and packaging. Each step has its standards and requirements, which need to be strictly followed by the production staff. The following is a brief introduction to each step and its key points. Pre-production preparation: Preparing in advance according to the relevant technical documents is necessary to ensure smooth and efficient production and manufacturing. This mainly includes the preparation of components, raw materials, and required equipment; the design documents, process documents, test methods, production and manufacturing operation rules, and other materials of the power adapter; some components need to be assembled in advance and their performance tested. Coil making Strictly speaking, coil making is also part of pre-production preparation, but magnetic components are critical for power adapters and directly affect product performance. Therefore, this item is listed separately, and the operators must have a magnetic component qualification certificate. Before winding the coil, determine the winding and performance parameters. According to the standard of magnetic components, determine the material list. According to the performance parameters of magnetic component winding, select enameled wire and skeleton. Cut out the size of each winding wire. Fix the skeleton on the winding machine and do a good job of winding. Special attention should be paid to: the wound coil should be tight and flat; with short inlet wire and long outlet wire; primary first and secondary later; if there are two windings in the secondary when coil turns are the same, wind at the same time; when coil turns are different, wind separately. Finally, twist each winding’s inlet and outlet wires 3-5 turns to prevent loosening. Then take down the skeleton from the winding machine. Arrange enameled wire. Scrape wire and tin. Component soldering and assembly Standard component soldering is a basic guarantee for product quality. It stipulates that there should be no missing soldering for components. Each solder joint should be soldered firmly and in good contact. There should be no wrong soldering components. In the soldering process, it is necessary to: confirm the accuracy of raw materials; preheat the soldering iron sufficiently. Hold the soldering iron in one hand and tweezers or wire in the other; solder in order. Inspect each component after soldering, from large to small or left to right. Check whether it is firm or not. Whether contact is good or not. There should be no offset. Falling off. False welding. Solder joints should be smooth and round. There should be no burrs or other bad phenomena; check for missing welding or short circuit caused by solder flow; or chips. Capacitor. Resistance should be close to the surface of the board. Cleaning refers to cleaning PCB with an ultrasonic cleaning machine to ensure no excess solder paste or impurities are inside the product. Clean twice as appropriate. During operation, ensure that cleaning equipment is installed stably. Pour water and washboard water into the machine according to the standard process. Clean for 1 minute. After cleaning. Dry at room temperature or dry in high temperature drying oven. Check cleaned PCB for false welding. Without welding. Short circuit etc. Inspection is a necessary process in any production process. It is also the last quality assurance before product shipment. Power adapter inspection mainly includes routine appearance inspection. Performance test and high-low temperature test. The routine test is to inspect the packaging and appearance of the power adapter. There should be no damage. Scratches. Dirt. Pin skew etc.; place power adapter under 1.5-10 times microscope. Ensure that the plating has no peeling or blistering. Lead has no fracture or corrosion; use a vernier caliper to measure physical size. According to the customer agreement stipulation. Test input-output parameters. When loading transient or input voltage transient occurs. Check whether output meets requirements. The high-temperature test is to place the power adapter in high temperature drying oven for baking for more than 2H, then quickly take out the product for performance test; the low-temperature test is to place the power adapter in a low-temperature storage box for freezing for more than 2H then quickly take out product for performance test. Potting Potting means slowly injecting refrigerated colloid into body colloid should not exceed components surface should be smooth and flat After potting products are placed parallel on tray at room temperature solidify for more than 48H After colloid solidifies completely can proceed next step operation After product is sealed into one shock resistance performance is improved ensuring product quality Casing Casing uses parallel seam welding machine First place product base on fixture of parallel seam welding machine then take cover plate place on product base confirm cover plate direction According to size of shell to be welded input corresponding shell length width left right electrode height on welding parameter interface after setting all parameters do spot welding work after spot welding work check whether cover plate base are spot welded together then do seam welding work After welding work check welding surface under 20 40 times microscope Welding should meet following requirements: welding surface should be well welded no pores cracks unsealed cover plate deviation other bad phenomena; welding surface should be flat no unevenness wheel marks; welding surface should not be overburned scratched Marking Marking is last step before product shipment mark product make product model pin function easy identify avoid wrong connection misuse Marking uses laser engraving machine input corresponding information on computer control engraving machine engrave information on shell.

PROFESSIONAL R & D TEAM

OUSM Technology Co., Ltd. has a professional R&D team covering various aspects such as circuit design, safety evaluation, appearance design, structure design, and technical management. We provide customers with tailor-made products that have reasonable configuration and cost-effectiveness.

INTIMATE SERVICE

We offer three years of guarantee for our products. Our excellent team, advanced technology, scientific management, and pragmatic and enterprising spirit are the actual core competencies of OUSM Technology Co., Ltd. We look forward to working with you for mutual benefit and development. Let us create a bright future together!

As a frequently used electronic device in our daily life, the power adapter is mainly used to adjust the power voltage and current to a suitable range for various electronic devices. As a professional company specializing in power adapters, Oushangmei Technology has always been trusted by consumers for its product quality and performance. Generally speaking, alternating current is a sinusoidal waveform of voltage and current that changes with time. Alternating current has many advantages, such as changing its size through a transformer, transmitting over long distances with low loss through transmission lines, using engines or generators easily generate it, and so on. Therefore, alternating current is the most common form of electric energy daily. However, not all devices can directly use alternating current. Some devices need to use a constant or stable direct current to work. Direct current is a constant or square waveform of voltage and current that does not change with time. Direct current has many advantages, such as it can be stored and released by batteries, switches can control it, and it can change its size by rectifier bridge or switch mode regulator. Therefore, direct current is the most common form of energy used daily. The working principle of a power adapter is to use power electronic technology to convert alternating current to direct current. Power electronic technology is a technology that uses semiconductor devices, such as transistors, diodes, thyristors, and so on, to control and convert electric energy. The main components of the power adapter are as follows: Input filter: used to filter out the noise and interference in the input alternating current and protect the power adapter and the subsequent devices. Rectifier bridge: rectifying the input alternating current into pulsed direct current, providing direct current power for the subsequent devices. Voltage feedback: used to detect the size and stability of the direct output voltage, connected with the control chip, adjust the switching frequency and duty cycle of the switch tube, and achieve the stability and regulation of the direct output voltage. Control chip: used to control the switching state of the switch tube, according to the change of input alternating current and the demand of direct output current, to achieve high efficiency and low loss AC-DC conversion. Switch tube: used to switch the pulsed direct current into high-frequency alternating current, improve the working efficiency and reduce the size and weight of the transformer. Transformer: used to reduce or increase the high frequency alternating current, according to different output voltage requirements, design different turns ratio and the number of turns. Output rectifier filter: used to rectify the transformer output high-frequency alternating current into smooth direct current and remove the high-frequency ripple by filter capacitor, improving the quality of direct output current. Output protection: used to protect the output direct circuit and load device and prevent overload, overvoltage, short circuits, and other faults. The production process of the power adapter can be roughly divided into the following steps: Choose a suitable power adapter scheme according to different output voltage, current, power, efficiency, safety, and other requirements; design a circuit diagram and schematic diagram. Select suitable components and materials. Make the PCB board of the power adapter, convert the circuit diagram into a PCB drawing, then make the PCB board by cutting, drilling, copper plating, etching, and other processes. Assemble the components of the power adapter, solder resistors, capacitors, diodes, transistors, and other components according to the position of the schematic diagram on the PCB board and form the main board of the power adapter. Test the performance of the power adapter, use special test instruments and software, test and debug the output voltage, current, ripple, efficiency, temperature rise, protection function, and so on of the power adapter, and ensure that they meet the design requirements and standard specifications. Encapsulate the shell of the power adapter, put the tested main board into a plastic or metal shell, fix the wiring and plug, then encapsulate and label, and complete the production of the power adapter. High efficiency: Oushangmei Technology uses advanced switch mode regulation technology, which makes its products have an efficiency of more than 90%, much higher than the traditional linear regulation technology. Low loss: Oushangmei Technology uses high-quality components and materials, which makes its products have a loss reduction of more than 50%, saving energy consumption. High stability: Oushangmei Technology uses precise control chips and feedback circuits, which make its products keep the output voltage and current in a constant and stable range, preventing fluctuations and interference. High safety: Oushangmei Technology uses multiple protection functions, which makes its products automatically disconnect the output in case of overload, overvoltage, short circuit, overtemperature, and other abnormal situations, protecting the power adapter and load device. High quality: Oushangmei Technology has passed the ISO9001 quality management system certification, and its products have passed the CE, FCC, ROHS, and other international standard certifications, complying with the safety regulations of various countries and regions. High-cost performance: Oushangmei Technology has its own R&D team and production base, which can customize different power adapter schemes according to customer needs, providing high-quality and low-cost products. Oushangmei Technology power adapter is your ideal choice in various application scenarios. It can provide efficient, stable, safe, and energy-saving power solutions, making your devices more convenient, comfortable, and intelligent. Welcome to Oushangmei Technology's official website to learn more about product information and service support. Background Oushangmei Technology was founded in 2012 and is headquartered in Shenzhen. The company has a high-quality R&D team and an excellent management team dedicated to providing customers with high-quality, high-performance power adapter products and perfect after-sales service. After years of continuous development, Oushangmei Technology has become one of the well-known brands in the power adapter field, and its products are sold worldwide. Product Series Oushangmei Technology's product series are diverse, including laptop power adapters, LED strip power adapters, and wireless chargers. Among them, laptop power adapters are one of Oushangmei Technology's main products, covering most of the laptop power adapter specifications to meet the needs of different users. In addition, Oushangmei Technology has also launched multiple smart, fast wireless chargers that support multiple fast charging protocols, making users' charging experience more convenient. Features and Advantages Oushangmei Technology's power adapter products have the following features and advantages: High-quality materials: Oushangmei Technology's power adapter products are made of high-quality materials, ensuring product durability and reliability. Strong stability: Oushangmei Technology's power adapters have a very stable voltage and current output, effectively protecting electronic devices and extending their service life. Safety and reliability: Oushangmei Technology's power adapter products have passed multiple international certifications, such as CE, FCC, ROHS, etc., which meet global safety standards and ensure the user's safety during use. Multiple protection measures: Oushangmei Technology's power adapter products have built-in multiple protection measures, such as overvoltage protection, overcurrent protection, short circuit protection, etc., ensuring the safety of users' devices. Perfect after-sales service: Oushangmei Technology's after-sales service is thoughtful, providing customers with comprehensive technical support and maintenance services, ensuring that users receive timely and effective assistance. In addition, Oushangmei Technology also pays attention to the innovation and humanization of product design. The company's product appearance design is simple and generous, and the operation is simple and convenient, providing users with a more pleasant user experience. In summary, Oushangmei Technology, a professional company specializing in producing power adapters, has a complete product series, reliable quality, stable performance, and many advantages and features, making it one of the preferred brands for consumers to choose power adapter products. At the same time, the company's perfect after-sales service also provides users with better use protection. We believe that Oushangmei Technology will continue to innovate and provide users with higher-quality power adapter products and services in future development.

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2012

Year of Establishment

150+

Employees

10+

R&D Engineers

1500+

Factory Floor Area

50+

Models

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The Function and Application of Power Adapters

In our daily life and work, many electronic products and devices need power adapters to provide suitable electric energy. So, what is a power adapter? What is its function? Moreover, what are its application scenarios? This article will briefly introduce these questions.

A power adapter is a device that can convert alternating current into direct current. It can provide suitable electric energy for different voltage requirements of electronic products and devices. Many kinds of electronic products and devices use power adapters, such as mobile phones, tablets, laptops, liquid crystal displays, speakers, cameras, printers, scanners, routers, set-top boxes, security cameras, light strips, massagers, fans, air conditioners, refrigerators, washing machines and so on. In order to ensure the safety and stability of these products and devices, we need to choose the appropriate power adapter according to their working voltage.

What is the function of the power adapter?

The function of the power adapter is to provide suitable electric energy for the different voltage requirements of electronic products and devices. Because the household alternating current is 220V, and most electronic products usually need a power supply voltage of about 5V to 20V, using the household alternating current directly will cause damage or failure to the electronic products and devices. Therefore, it is necessary to use a power adapter to convert alternating current into direct current and adjust the output voltage and current according to different loads to ensure safe and stable operation.

What are the application scenarios of the power adapter?

There are many application scenarios for the power adapter. Here are some common examples:

Portable devices such as mobile phones, tablets, laptops, etc.: These devices need to charge to store electric energy, and charging requires using a power adapter to convert alternating current into direct current and output suitable voltage and current according to different device charging specifications. For example, mobile phones generally use 5V1A or 5V2A chargers, while laptops need 19V or 20V chargers.
External devices such as liquid crystal displays, speakers, cameras, etc.: These devices need to connect to the host or other devices through external cables and need to use power adapters to provide the required direct current. For example, liquid crystal displays generally use 12V or 24V adapters, while speakers may need 9V or 18V adapters.
Office equipment such as printers, scanners, routers, etc.: These devices must communicate with computers or other devices through network or USB interfaces and use power adapters to provide the required direct current. For example, printers generally use 24V or 32V adapters, while routers may need 5V or 12V adapters.
Home devices such as set-top boxes, security cameras, light strips, etc.: These devices must receive or send information through signal lines or wireless methods and use power adapters to provide the required direct current. For example, set-top boxes generally use 12V or 15V adapters, while security cameras may need 5V or 9V adapters.
Living devices such as massagers, fans, air conditioners, etc.: These devices need to control functions through buttons or remote controllers and use power adapters to provide the required direct current. For example, massagers generally use 12V or 24V adapters, while fans may need 5V or 9V adapters.
The above briefly introduces the function and application of power adapters. We hope it will help you. If you want to know more about power adapters, please continue to follow us.

Oushangmei Technology Power Supply Co., Ltd. is a professional enterprise engaged in the research, development, production, and sales of power adapters. The company's main products include laptop power adapters, mobile phone chargers, LED driver power supplies, medical power supplies, and other types widely used in IT, communications, home appliances, LED lighting, medical and other fields. Since its establishment, the company has always adhered to the business philosophy of quality as the core, technology as the foundation, market-oriented and customer-centric. It has been highly trusted and praised by customers. The company mainly produces various specifications of power adapters, including ac dc power supplies, USB charger adapters, PoE injectors, type chargers, etc., which are widely used in communication, network, security, medical, industrial control, consumer electronics, and other fields. The company's products have passed many domestic and foreign certifications, such as cUL, Bis, SAA, KC, KCC, CCC, CE, UL, FCC, RoHS, etc... They are exported to many countries and regions such as Europe, America, Asia, and Africa, and have won the trust and praise of customers. Oushangmei Technology Power Co., Ltd. produces ac dc power supply products with various specifications and models to choose from, meeting different voltage and current requirements, such as 5V, 9V, 12V, 24V, etc., and 0.5A, 1A, 2A, 3A, etc. Oushangmei Technology Power Co., Ltd.'s ac dc power supply products have the following performance advantages: High efficiency and energy saving. Using high-frequency switching technology and synchronous rectification technology, effectively improving the efficiency of power conversion, reducing the loss and heat of power supply, saving energy consumption, and meeting the EU energy efficiency standards. High stability and reliability. Using precision control chips and high-quality components, ensuring the accuracy and stability of output voltage, resisting the influence of grid fluctuation and load change, and improving the life and safety of the power supply. High compatibility and flexibility. Using standard DC plug and cable, suitable for various device interfaces, convenient for users to use and replace. At the same time, according to customer needs, different specifications and models can also be customized to meet personalized needs. High safety and environmental protection. Using multiple protection functions, such as over-voltage protection and over-current protection, Received message. High safety and environmental protection. Using multiple protection functions, such as over-voltage protection, over-current protection, short-circuit protection, etc., effectively prevents damage to the power supply and equipment, ensuring the safety of users. At the same time, using lead-free, mercury-free, halogen-free, and other environmental materials, meeting RoHS and other environmental standards, reducing environmental pollution. OUSM company values the importance of environmental protection and sustainability, and we are committed to producing environmentally friendly products. All of our products meet the ROHS environmental protection requirements, and we are continuously improving our production process to minimize waste and reduce environmental impact. We also prioritize customer satisfaction. Our sales team is professional, knowledgeable, and always ready to provide timely and effective customer service. We understand the importance of communication and strive to establish long-term and stable relationships with our customers through trust, mutual understanding, and respect. Shenzhen Oushangmei Power Technology Co., Ltd. is dedicated to providing high-quality power supply products and services to customers worldwide. We are committed to innovation and continuous improvement and will continue to work towards becoming a leading global supplier in the power supply industry.

Oushangmei Technology: A Leading Power Adapter Manufacturer with Premium Certifications

Introduction: Oushangmei Technology, a renowned power adapter manufacturer, stands out in the industry for its diverse range of power adapters, capable of providing various voltages, currents, and power outputs. With a solid commitment to quality and reliability, Oushangmei Technology ensures that its power adapters undergo rigorous testing and meet renowned certifications such as CE, FCC, UL, SAA, and more. This article delves into the exceptional offerings of Oushangmei Technology, highlighting its comprehensive range of power adapters, the significance of certifications, and the advantages of choosing their products for powering electronic devices.

I. Oushangmei Technology: Leading the Industry

A. Company Overview: Oushangmei Technology has established itself as a prominent player in the power adapter manufacturing sector. With years of experience and expertise, the company has gained a reputation for delivering high-quality power solutions that meet diverse customer requirements.

B. Extensive Product Range: Oushangmei Technology offers various power adapters that cater to various voltage, current, and power output needs. Their product range covers laptops, mobile phones, tablets, gaming consoles, home appliances, and more adapters. Customers can choose different form factors, connector types, and power specifications to suit their devices.

C. Customization Capabilities: Recognizing the unique requirements of different customers, Oushangmei Technology provides customization options for power adapters. Whether modifying voltage and current levels, incorporating specific connectors, or accommodating particular power demands, the company has the expertise to tailor solutions accordingly.

II. Importance of Certifications:

A. CE Certification: The CE mark is a prominent certification that indicates a product's compliance with European Union safety, health, and environmental protection standards. Oushangmei Technology's power adapters bear the CE mark, assuring customers of their adherence to stringent quality and safety regulations.

B. FCC Certification: FCC certification ensures that electronic devices, including power adapters, meet the electromagnetic compatibility (EMC) standards defined by the Federal Communications Commission (FCC) in the United States. Oushangmei Technology's power adapters pass FCC testing, guaranteeing their electromagnetic compatibility and minimal interference with other devices.

C. UL Certification: Underwriters Laboratories (UL) certification is widely recognized for its stringent safety standards. Oushangmei Technology's power adapters undergo rigorous testing to obtain UL certification, signifying their compliance with electrical safety standards, fire resistance, and protection against electrical hazards.

D. SAA Certification: SAA certification, specifically relevant in Australia and New Zealand, ensures that electrical products, including power adapters, meet the safety and technical standards set by these regions. Oushangmei Technology's SAA-certified power adapters assure customers of their compliance with Australian and New Zealand safety regulations.

E. Other Recognitions: Apart from the mentioned certifications, Oushangmei Technology's power adapters may also carry additional certifications, such as RoHS (Restriction of Hazardous Substances) compliance, ensuring the absence of hazardous materials like lead and mercury.

III. Advantages of Oushangmei Technology's Power Adapters:

A. Quality and Reliability: Oushangmei Technology prioritizes quality and reliability in every aspect of its power adapters. The company is committed to delivering products that meet stringent industry standards by adhering to renowned certifications. Customers can trust Oushangmei Technology's power adapters for a safe and reliable power supply to their electronic devices.

B. Wide Compatibility: Oushangmei Technology's power adapters are designed to be highly compatible with a wide range of electronic devices. Whether charging smartphones, powering laptops, or driving gaming consoles, their adapters provide the required voltage, current, and power output to ensure optimal device performance.

C. Safety Features: Oushangmei Technology's power adapters prioritize safety. With certifications like CE, FCC, UL, and SAA, their products incorporate built-in protection features against overvoltage, overcurrent, short circuits, and overheating, ensuring devices are safeguarded from potential damage.

D. Energy Efficiency: Oushangmei Technology's power adapters focus on enhancing efficiency and reducing energy waste. By complying with international efficiency standards like ENERGY STAR, their adapters optimize energy conversion, reduce energy consumption, and help users save on electricity bills.

E. Durability and Lifespan: Oushangmei Technology emphasizes durability in its power adapters to withstand rigorous everyday usage. With premium components and robust construction, they offer extended lifespan, reducing the need for frequent replacements and contributing to sustainability.

F. Customer Support and Warranty: Oushangmei Technology places customer satisfaction at the forefront. Alongside top-quality power adapters, they provide excellent customer support to assist users with queries or concerns. Additionally, their products often come with warranties, providing customers with peace of mind and a guarantee of purchase.

Conclusion:

As a leading power adapter manufacturer, Oushangmei Technology stands out for its high quality, reliability, and prestigious certifications. The company complies with strict safety, quality, and environmental standards by obtaining certifications such as CE, FCC, UL, and SAA. Choosing Oushangmei Technology's power adapters ensures an efficient and reliable power supply for electronic devices, meeting the highest industry benchmarks.

Honorary Qualification & Safety Certificates

Introduction of Oushangmei Power Supply Technology Co., Ltd.

The power adapter is a device that converts alternating current into low-voltage direct current. It is an essential accessory for various small portable electronic devices and appliances. With the progress of science and technology and the development of society, the types and quantities of electronic products are increasing, and the demand for power adapters is also increasing. According to the market research agency report, the global power adapter market size is expected to reach 25 billion US dollars in 2020 and 35 billion US dollars in 2025, with a compound annual growth rate of 6.8%.

The main driving factors of the power adapter market include the following points:

The popularity and replacement of electronic products. With the popularity of mobile devices such as smartphones, tablets, laptops, etc., and the development of new technologies such as 5G, the Internet of Things, artificial intelligence, etc., the demand for power adapters also increases. At the same time, as consumers' requirements for performance, function, and appearance increase, electronic products also need to be constantly updated and replaced, which drives the update and replacement of power adapters.
The technological innovation and legal unification of power adapters. In order to meet the consumers' demand for charging speed, compatibility, and safety, as well as energy-saving and environmental protection requirements, power adapters are also constantly undergoing technological innovation and legal unification. For example, using fast charging technology, wireless charging technology, USB-C interface, etc., to improve charging efficiency and convenience; using high-frequency switching technology, synchronous rectification technology, power factor correction technology, etc., to improve the efficiency and stability of power adapters; using over-voltage protection, over-current protection, short-circuit protection, etc., to improve the safety of power adapters.

Innovative design

Support bidirectional charging function. Type chargers can automatically switch input and output modes according to the device's needs, achieving bidirectional charging. It can charge devices and provide power for other devices, which is convenient for users.
Support multiple protocol compatibility functions. Type charger supports USB PD, QC, AFC, and other fast charging protocols. It can be compatible with different brands and models of devices without worrying about the mismatch between charger and device.
Support magnetic adsorption function. The type of charger uses a magnetic adsorption design. It can connect the USB-C interface and device without worrying about plug direction and poor contact problems, improving charging efficiency and convenience.
Environmental concept

Support energy saving and emission reduction functions. Type charger uses high-efficiency conversion chips and components, effectively reducing the loss and heat of power supply, saving energy consumption, and meeting the EU energy efficiency standards.
Support environmental material function. Type charger uses lead-free, mercury-free
Received message.

Support environmental material function. Type charger uses lead-free, mercury-free, halogen-free, and other environmental materials, meeting RoHS and other environmental standards and reducing environmental pollution.
Support recycling function. Type charger uses a detachable and recyclable design, convenient for users to replace and repair, extending the service life and safety.
Oushangmei Technology Power Co., Ltd.'s type charger products have passed CCC, CE, UL, FCC, and other domestic and foreign certifications; quality is guaranteed and trustworthy. If you need to buy or consult type charger products, please contact us, and we will provide you with quality products and services.

Shenzhen Oushangmei Technology Co., Ltd. is a professional manufacturer and R&D company specializing in producing switch power supplies, power adapters, LED power supplies, waterproof power supplies, and other products. Our company possesses advanced production equipment and testing facilities, a first-class sales team, and an independent and high-level R&D team. In the field of power supplies, we have established a sound service system and product sales channel by borrowing from the advanced technology of peers in the industry and leveraging the rich experience of our engineers. Our products have passed various certifications, including CCC, cETL 1310, CE, UL/Cul, FCC, KC, SAA, C/tick, CB, TUV/GS, and ROHS.

OUSM Technology Power Supply: A High-Quality and Reliable Option

Power supply adapters are essential to many electronic devices, from laptops and smartphones to gaming consoles and routers. However, not all power supply adapters are created equal, and choosing the right one can significantly affect performance, stability, and safety. This article will explore OUSM Technology power supply adapters and highlight their performance and advantages, using examples and user reviews.

OUSM Technology is a leading manufacturer of power supply adapters, offering a wide range of models and specifications to meet the needs of different users. Their products are known for their high efficiency, stability, and safety, making them a popular choice among consumers.

# Introduction to Shenzhen OUSM Power Technology Co., Ltd.

The company's main products are wall-mounted power adapters and desktop power adapters. They have different specifications and models to meet the needs of different customers. The company's products have the following features:

- Level 6 energy efficiency: Comply with the latest energy efficiency standards, save energy, protect the environment, and reduce operating costs.
- Adapt to the world: It can adapt to 100-240V AC input voltage and is suitable worldwide.
- Military quality: Use high-quality electronic components and strict process procedures to ensure the durability and reliability of the product.
- Beautiful appearance: The shell is made of fire-resistant material, with a simple and elegant design that conforms to ergonomic principles.

## Service Advantages

The company's mission is to provide quality products to the market, with customer satisfaction as the goal, innovation as the driving force, and continuously improve its core competitiveness. The company has the following service advantages:

- Professional R&D team: The company has a five-person professional R&D team covering circuit design, safety assessment, appearance design, structure design, technical management, and other talents. It can plan and design according to customers' functional requirements and provide customers with tailor-made products with reasonable configuration and high-cost performance.
- Advanced production equipment: The company has a complete production line and testing equipment. The production workshop has plug-in lines, wave soldering, comprehensive power test lines, fully automatic aging rooms, laser engraving machines, high-performance power analyzers, oscilloscopes, and other equipment. Create a high-quality power adapter manufacturer.
- Perfect after-sales service: The company provides a one-year warranty and lifetime maintenance service. We will respond and solve any quality or usage problems in time to make customers worry-free.

Oushangmei Technology is a professional company that produces and sells high-quality power adapters. Its products cover various specifications and power levels of AC output and DC output power adapters, which can meet the needs of different devices and occasions. Oushangmei Technology power adapters have the following advantages:

Energy-efficient: Oushangmei Technology power adapters use advanced switching power supply technology, which can reduce power consumption and heat generation, improve conversion efficiency, and meet national energy-saving standards.
Stable and reliable: Oushangmei Technology power adapters use high-quality transformers, capacitors, control chips, and other components, which have been strictly tested and inspected to ensure the stability of output voltage and current and prevent overvoltage, overcurrent, short circuit, and other faults.
Safe and environmentally friendly: Oushangmei Technology power adapters have passed the national safety certification, comply with CE, FCC, and other international standards, have good anti-interference and lightning protection capabilities, and use lead-free, mercury-free, and other environmentally friendly materials to reduce environmental pollution.
Personalized customization: Oushangmei Technology power adapters provide customers with a variety of interface and plug options, as well as different colors and shapes of design, to meet the personalized needs of customers.
To demonstrate the performance and advantages of Oushangmei Technology power adapters, we can refer to the following cases or user reviews:

Case 1: A company uses Oushangmei Technology power adapters to power its security cameras and finds that compared with other brands of power adapters, Oushangmei Technology power adapters can better ensure the clarity and stability of the cameras, without any screen jitter or splash screen phenomena, while also saving some electricity costs.
Case 2: A school uses Oushangmei Technology power adapters to power its multimedia classroom projectors, speakers, and other equipment and finds that Oushangmei Technology power adapters can effectively eliminate the interference between devices, improve the quality and effect of audio and video and also extend the service life of the equipment.

One of the advantages of OUSM Technology power supply adapters is their high efficiency. They are designed to convert the AC power from the wall outlet to the DC power required by the electronic device with minimal energy loss, resulting in lower electricity bills and longer battery life. Moreover, OUSM Technology power supply adapters are engineered to meet strict energy efficiencies standards, such as Energy Star and DoE Level VI, ensuring they consume the least energy possible.

Another advantage of OUSM Technology power supply adapters is their stability. They are built with high-quality components and advanced technology to provide a stable and consistent output voltage and current, such as overvoltage protection, short-circuit protection, and electromagnetic interference (EMI) filtering. This stability is crucial for the proper functioning of electronic devices, as any fluctuations or spikes in power can cause damage or malfunctions.

Finally, OUSM Technology power supply adapters are also known for their safety. They undergo rigorous testing and certification processes to comply with international safety standards, such as UL, CE, FCC, and RoHS. They are designed with multiple safety features, such as overcurrent protection, overtemperature protection, and overcharge protection, to prevent potential hazards or accidents.

User reviews of OUSM Technology power supply adapters are generally positive, with many users praising their performance and durability. For example, one user on Amazon commented, "I have been using OUSM Technology power supply adapters for a few years now, and they have never let me down. They are reliable, efficient, and safe, and I appreciate the peace of mind of using them." Another user on Reddit wrote, "I used to buy other brands of power supply adapters, but I found that they often failed. I decided to try OUSM Technology power supply adapters because they were very durable. I have been using them for over a year and have not had any issues. Their durability is impressive, and I highly recommend them."

In conclusion, OUSM Technology power supply adapters are a high-quality and reliable option for anyone looking for a power supply adapter. Their efficiency, stability, and safety make them stand out in the market, and user reviews attest to their performance and durability. Whether you are a gamer, a programmer, or a regular user, you can find a suitable power supply adapter from OUSM Technology.

Global Safety Certification

Our Adapters Have Past Global Safety Certifications like GS, UL/cUL, CE, FCC, BS, SAA, CCC, PSE, KC, And Much More…

Safety & Reliability Strict Testing

9-Fold Intelligent Protection, 28 Reliable Performance Tests, All Power Supplies & Adapters are Strictly Randomly Sampled…

Energy Saving & Environmental

Comply with Level 6 Energy Efficiency Standard, Environmental Protection standards such as RoHS, Reach, etc...

OUSM Adapters Long Service Life

Use Imported IC scheme, Long Life Electrolytic Capacitor Resistant to High Temperature, Small ESR, Small Output Ripple…

Our Happy Clients!

List item 5

This was an excellent product and it was delivered on time. Packaging was also excellent. Mr Lee was excellent to deal with we will be reordering from them.

Mike Bernasconi

List item 5

It works perfectly and good support from Shenzhen Oushangmei. Product was as described and tested excellent. We placed a large order. Thank you!

ANTHONY MARTIN

List item 5

The performance of adapter is great.Kind and quick response. Good price, quick delivery to The Netherlands. We will buy more from you very soon. 👌👌👌

JERRY FREEMAN

Oushangmei Technology Co.,Ltd

406,8#, Dadu Road, East District, Baishixia Community, Fuyong Strect Baoan District, Shenzhen, Guangdong, China

+86-17779511376

Fubing_lee@ousmpoweradapter.com

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