source:power adapter Popular:adapter release time:2021-07-09 14:17:08 Article author:sznbone
What is a power adapter? In fact, power adapters are often used in our lives, but many people don't know what it looks like. The following editor will give a brief introduction to these issues, let's take a look!
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 Type power adapter and desktop type power adapter. It is widely used in the equipment such as telephone handsets, game consoles, language repeaters, walkmans, notebook computers, and cellular phones. 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 100V When this feature is very useful, some parallel-imported laptops are only sold in the country of origin. Without this design, they even have a single input voltage of 100V. If they are plugged in under the 220V mains voltage in our country, they will burn out.
The function of the power adapter is to provide the energy required for the normal operation of the device. It is to supply power to the equipment. Some are external and some are built-in, depending on the application and designer of the device. Because the power adapter has a corresponding over-temperature protection function, the use of the power adapter can protect the equipment from high temperature damage and work stably and reliably. At the same time, it has over-current, over-voltage, and overload protection functions, so that the equipment will not be affected by current and voltage. And other fluctuations. The external power adapter is more flexible to use. As long as the parameters required by the device can be met, the same adapter can be used. However, in order to ensure the normal operation of the equipment, you must choose a power adapter produced by a regular manufacturer.
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