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The role of common mode inductance in Apple charger
- 2020-07-02-

Xiao Ao tells everyone todayCommon mode inductanceThe role of the Apple charger is that the charger is a digital product that we have used for a long time in our lives. Why some charging products can achieve fast charging effect, Xiaoao and everyone will explain;

Nowadays, the power of power adapters is getting bigger and bigger. Apple released a 30W power adapter this year. As we all know, Apple's products have always been made with high-quality raw materials and superior workmanship. The new 30W power adapter is equipped with 4 voltage levels, specifically 5V/3A, 9V/3A, 15V/2A, 20V/1.5A. For professionalCommon mode inductanceFor Gujing Electronics, let everyone know the position of the common mode inductance in this power supply, and at the same time explain the characteristics of the charger.

Inductance is an indispensable part of the circuit. Common mode inductance plays a vital role in the power circuit. It is used to filter common mode electromagnetic interference signals in the power circuit, and it plays a role in EMI filtering in the board. In general, common mode inductors are mainly used to isolate high-frequency crosstalk between the internal and external wires of electrical appliances.

We use a 30W product disassembled by the blogger of the digital circle to analyze the position of the common mode inductor.

By removing all the appearance, we can see the output circuit of the charger, densely packed electronic components, capacitors, inductors, transformers, etc. At this time, we may not have seen our common mode inductors, but don't worry. When doing the separation, we can see that the important part of the charger is actually two PCB boards.

The above is about "Common mode inductance"The role in the Apple charger" knowledge, we have learned this knowledge, then when we purchase digital products, we will know how to choose, OK, Xiaoao will share it here today, want to know more Knowledge of protection devices welcome to pay attention to this website.