source:Industry News Popular:adapter release time:2022-02-23 09:30:02 Article author:sznbone
Power adapters are widely used in routers, telephones, game consoles, language repeaters, walkmans, notebooks, mobile phones and other equipment. Most power adapters can automatically detect 100-240V AC (50/60Hz). Power Adapter
Wall-plug certified power adapters will be considered to be counterfeit products because if the product is not tested and affixed with the CE label, all EU countries will take appropriate measures against counterfeit CE-marked products. and other products of the same manufacturer in Europe are severely punished. So it will be very dangerous if the product is tested by some illegal or humble certification body
The application of the power adapter in the notebook computer, the semiconductor integrated circuit (IC) used in the notebook computer needs DC voltage. The DC voltage is used because the IC cannot work under the AC voltage of 50Hz or 60Hz, and the IC will be reverse voltage (reverse bias voltage) )damage. Generally, the fault voltage of IC is below DC20V (DC5V~10V), and IC can work stably only within the voltage range of high-power power adapter specified in the product specification, so the voltage of the power adapter that supplies power to the IC must be within the working range. Power Adapter
The materials used for the internal electronic components of the power adapter are roughly divided into three types, the lowest level is the old material or the fake material; the middle level is the inferior material; the highest level is the good material. Generally, we will use old materials and fake materials to make up the number, and brand-name manufacturers will use better and inferior materials, and only first-line brands will use the best quality real materials and good materials. Therefore, the two 36W power adapters of the same level, the products with an average price of 30 yuan are better than the cheap ones with only 15 yuan.
The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. It is generally composed of a shell, a power transformer and a rectifier circuit. According to its input type, it can be divided into AC power adapter and DC power adapter; according to the connection method, it can be divided into wall plug power adapter and desktop power adapter. It is widely used in telephones, game consoles, language repeaters, Walkmans, notebook computers, cellular phones and other equipment. Power Adapter
The power adapter first appeared in the mid-1980s. Toshiba of Japan took the lead in applying switching power supply technology to the external power supply of notebooks. Its pioneering work created a new page in the development history of power adapters.
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