What you don't know about the power adapter

Generally speaking, the function of power adapter is transformer and rectifier. Home AC is 220V, and our computer is 12V DC (as if), so we can be sure that the power adapter is a transformer and rectifier. The adapter is a transformer, so we should all know that AC 220V is transformed into DC through the transformer and the rectifier. There is consumption here, and these consumption will be converted into heat, so it is normal that the power adapter will generate heat.

The transformer is made of silicon steel sheet. When the transformer is electrified, it will produce magnetic flux. The magnetic flux will cause the force between silicon steel sheets to produce a buzzing sound, which is normal. But over fire earth sound is abnormal for many reasons: 1. AC voltage is not stable. 2. Chip is broken. 3. Turn to turn short circuit. 4. Component damage, etc. By the way, the function of the adapter is to convert alternating current into direct current electronic products.

The power adapter is generally built-in with large space. Generally, the size of the adapter is not small. Small machines are all external. In order to save space, it is convenient to replace. The adapter uses high voltage and Power Supply. The internal part of the amplifier is dangerous.

Summary

The function of the power adapter is to convert the high voltage in the home into the stable low voltage that can work, so that they can work normally. Without it, it will bring a lot of inconvenience to our daily use. This paper mainly introduces the function, composition and application of the power adapter, as well as some problems that should be paid attention to when using the power adapter.

Best regards,

Shirley Liang