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UL standards for power supplies

A class 2 power supply shall comply with one of the following: a) the standard for class 2 power units, UL 1310; b)the standard for information technology equipment-safety-part 1: general requirements, ...…

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Introduction of regulated power adapter

Electronic devices are inseparable from the power adapter. The power adapter supplies the energy required by the electronic device, which determines the importance of the power adapter in the electronic device....…

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The basic method of power supply factory shipment inspection
The basic method of power supply factory shipment inspection
Inspection is an important task in the production of power adapter manufacturers, which runs through the entire process of power adapter production. The power adapter inspection generally includes a three-level inspection system of self-inspection, mutual inspection and full-time inspection. Usually inspection work mainly refers to full-time inspection, that is, full-t...
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How to solve the interference caused by the power adapter
How to solve the interference caused by the power adapter
The power adapter may sometimes be interfered by external factors during use, so how should we avoid this interference? The external interference to the power adapter, such as AC cable harmonic current, AC cable conduction interference, electromagnetic field radiation interference, etc., can only be solved by reducing interference. On the one hand, we...
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Introduction of regulated power adapter
Introduction of regulated power adapter
Electronic devices are inseparable from the power adapter. The power adapter supplies the energy required by the electronic device, which determines the importance of the power adapter in the electronic device. The quality of the power adapter directly affects the working reliability of the electronic device, so the requirements of the electronic device for the power ad...
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Power adapter circuit principle
Power adapter circuit principle
High frequency power adapter According to the analysis of the internal structure of the power adapter, the power adapter use the working circuit principle of the power adapter. (1) the main circuit 1) the function of the input filter is to filter the clutter existing in the power grid and also to block the clutter feedback generated by the power adapter To the a...
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Introduction of LED AC DC Power Supply
Introduction of LED AC DC Power Supply
Led ac dc power supply is a constant current source, and switching power supply is a constant voltage source. Working Principle: There are two requirements for the supply of power supply by LED. First, the output voltage > the on-line voltage of LED is required, and secondly, the working current is required to be stable and not greater than the rated current ...
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Guanyuda Power Supply Co., Ltd 2020 Spring Festival Holiday Notice
Guanyuda Power Supply Co., Ltd 2020 Spring Festival Holiday Notice
Combined with the actual situation of our company according to national regulations The holiday arrangements for the Chinese Spring Festival in 2020 are as follows: 1. From January 20, 2020 to February 2, 2020, there will be 14 days off. On February 3, the whole factory went to work on time. 2. The company group annual party will be held on January 19, 2020....
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Warmly velcome UK customers to visit our company
Warmly velcome UK customers to visit our company
November 14, 2019, Ms. Sharon Ramsay General Manager Mr. Darren.Old Purchasing manager and Amy She Quality Technician from the UK came to our company for a visit. The company's foreign trade department, Joy and Wing, warmly welcomed our customer from afar. British customers have systematically visited our production workshop and testing room. During the...
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The difference of waterproof power supply with the average power adapter?
The difference of waterproof power supply with the average power adapter?
Level of waterproof IP67 waterproof power supply ,dust-proof (safety dustproof,immersed to 15cm to 1m working), High power factor,With short circuit, over current ,overload and other multiple protection, Mainly used in the article LED lights and other LED products, the most important characteristics is waterproof, can be used outdoors without again afraid of rain, the...
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