Teach you how to understand the switching power supply EMI
Let's briefly introduce the EMI: EMI translation into Chinese is electromagnetic interference. In fact, all electrical equipment will have electromagnetic interference. Only the severity varies. Electromagnetic interference will affect the normal operation of various electrical equipment, and will interfere with the normal transmission of communication data. Although the damage to the human body is still inconclusive, it is generally considered to be unfavorable to the human body. Therefore, many countries and regions have strict regulations on the degree of electromagnetic interference of electrical appliances. Of course, the power supply is no exception, so we have reason to understand EMI and its suppression methods.
The EMI is described below in conjunction with some expert literature.
First, EMI has three fundamentals.
Source of noise: the source of the emission of interference, like the source of infectious diseases;
Coupling pathway: a carrier that transmits interference, like a carrier for the spread of infectious diseases, food, water, air, etc.;
Receiver: The object being disturbed, the person being infected.
In the absence of the same, electromagnetic interference is not established. Therefore, there are three ways to reduce the harm of electromagnetic interference:
1. Suppress interference from the source.
2, cut off the route of transmission
3, enhance resistance, this is the so-called EMC (electromagnetic compatibility)
Guangzhou Fengjiu New Energy Technology Co.,Ltd , https://www.flashfishbatteries.com