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US standard power adapter wholesale customization.adapter manufacturer

source:power adapter     Popular:adapter     release time:2021-11-19 09:31:26     Article author:sznbone    

  US standard power adapter wholesale customization.adapter manufacturer(图1)

  The materials used in the internal electronic components of the power adapter are roughly divided into three types, the lowest level is used materials or fake materials; the middle level is inferior materials; the highest level is good materials. Generally, copycats will use old and fake materials to replenish the number, and no-brand manufacturers will use better inferior materials, and only first-line brands will use the best quality real materials and good materials. Therefore, the average price of the two 36W power adapters of the same level is 30 yuan better than the cheap product of only 15 yuan.

  There is a nameplate on the power adapter, which indicates the power, input and output voltage and current and other indicators. Pay special attention to the range of the input voltage. This is the so-called "travel power adapter". If you go to a country where the mains voltage is only 110V , This feature is very useful. Some parallel-imported notebook computers are only sold in the country of origin. They do not have this compatible voltage design, and even have a single input voltage of 110V. If they are plugged in under the 220V mains voltage in our country, they will burn.

  It is internally composed of a power transformer and a rectifier circuit. According to its output type, it can be divided into AC output type and DC output type; according to the connection mode, it can be divided into wall type and desktop type. There is a nameplate on the power adapter, which indicates the power, input and output voltage and current and other indicators. U.S. power adapter

  First, it can enhance the design of the input/output filter circuit, improve the performance of the active power factor compensation (APFC) circuit, reduce the voltage and current change rate of the switch tube, rectifier, and freewheeling diode, and use various soft switching circuit topologies. Structure and control method, etc.; on the other hand, strengthen the shielding effect of the case, improve the leakage of the gap of the case, and conduct a good grounding treatment.


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