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Introducing the Internal Components of the Power Adapter

116 views Yuda Electronic (HK) Technology Co.,Limited. 2018-11-20

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Power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of components such as a casing, a transformer, an inductor, a capacitor, a control IC, and a PCB. Its working principle is converted from an AC input to a DC power. According to the connection method, it can be divided into wall-mounted and desktop. Widely used in security cameras, set-top boxes, routers, light bars, massage instruments, computers and other electronic devices.

  
Nowadays, everyone has a laptop. Using a laptop is convenient for us. The notebook power adapter is one of the important accessories for the notebook. If the power adapter fails, you may not work properly. Maybe you might go to the store and buy one again, but if you buy a power adapter, But buying a power adapter costs about $20, and second-hand may cost a dozen dollars. I want to repair myself and don’t understand! then what should we do?

 

Introducing the internal components of the power adapter

 

1: varistor

2: fuse

3: Inductor coil (also known as choke)

4: rectifier bridge

5: Filter capacitor

6: Op amp IC (Integrated Circuit)

7: Temperature probe

8: High power switch tube

9: Switching transformer

10: secondary rectifier

11: secondary filter capacitor

In addition to these components, there are adjustable potentiometers and RC components on the board.

 

Yuda Electronics Co., Ltd. is an original mobile phone accessories wholesale with 15 years experience, including original Apple/Samsung phone charger, phone battery and other phone accessories, contact us for a free quote.

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