source:Industry News Popular:adapter release time:2021-12-23 10:31:30 Article author:sznbone
Power adapters are widely used in industrial production machinery automation, military machinery and equipment, scientific research equipment, LED lighting, industrial control automation, communication equipment, power engineering, instrumentation equipment, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LCD screens, LED lighting fixtures, communication equipment, audio-visual products, smart security, computer hosts, electronic products and equipment and other industries, and in this industry have a role that cannot be ignored.
Generally speaking, the function of the power adapter is the transformer and rectifier. The AC power in the home is 220v, and the commercial land on people's computers is 12v (it seems to be), so there is no doubt that the power adapter is a transformer and rectifier. The power adapter is a transformer, so we should understand that the communication 220v varies according to the transformer and the rectifier transforms into direct current. There is a cost here, and this cost will change into heat. Therefore, the power adapter will be hot and everything is normal. of. The transformer is made of silicon steel sheet. After the transformer is connected to the power supply, it will cause magnetic flux. The magnetic flux will cause a force-to-earth action between the silicon steel sheets, and then cause a buzzing sound. It is all normal. But too much ground noise is abnormal. There are many reasons: AC working voltage is not stable; integrated ic is damaged; locked-rotor short-circuit failure; components destroy these. By the way, the role of the power adapter is to convert alternating current into an electronic device.
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