What are the functions of the power adapter?
Author： Shenzhen Aibit Technology Co., Ltd.Issuing Time：2018-11-23 17:01:33Pageviews：3267【smallmidbig】
In general, the power adapter acts as a transformer and rectifier. The household AC is 220v and my computer is DC 12v. It seems that the power adapter is the transformer and rectifier. The adapter is a transformer, then I should know that the AC 220V is transformed by the transformer, and the DC is changed by the recti...
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In general, the power adapter acts as a transformer and rectifier. The household AC is 220v and my computer is DC 12v. It seems that the power adapter is the transformer and rectifier. The
adapter is a transformer, then I should know that the AC 220V is
transformed by the transformer, and the DC is changed by the rectifier.
Here, it is consumed and these consumptions are converted into heat, so
it is normal for the power adapter to heat up.
The
transformer is made of silicon steel sheet. After the transformer is
energized, the magnetic flux occurs. The magnetic flux will cause a
force between the silicon steel sheets to generate a squeaking sound.
This is normal, but the sound of the over-fire ground is not normal.
Many reasons: 1 The AC voltage is unstable. 2 chip is broken. 3 short circuit between turns. 4 component damage and so on. By the way, the role of the adapter is to convert the alternating current into a direct current electronic product.
The
power adapter space is generally large, the built-in general adapter is
not small, the small size of the machine is external to save space, the
second is also convenient to replace, the adapter for the mains, the
voltage is higher, put the machine internal comparison Danger.
2018-11-23
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