Switching power supply electromagnetic compatibility (EMC) technology comprehensive explanation

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Electromagnetic Interference (EMI) English: (Electro Magnetic Interference) is an electronic noise that interferes with cable signals and reduces signal integrity. EMI is usually generated by sources of electromagnetic radiation such as motors and machines.

Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in its electromagnetic environment and to produce unacceptable electromagnetic interference to any device in its environment. Therefore, EMC includes two requirements: on the one hand, the electromagnetic interference generated by the equipment in the normal operation process cannot exceed a certain limit; on the other hand, the appliance has certain electromagnetic interference in the environment. The degree of immunity, ie electromagnetic sensitivity.

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