What is the role of the high-frequency switching power supply compatibility PCB board?

No matter how reasonable the design of the high-frequency switching power supply circuit is, as long as the PCB board design is unreasonable, it may cause excessive electromagnetic interference. Therefore, it is reasonable to design a PCB board with reasonable PCB design. No matter how reasonable the high-frequency switching power supply circuit design is, as long as the PCB If the board design is unreasonable, it may cause excessive electromagnetic interference, so the PCB board should be designed reasonably. The following points should be considered in the design: Reasonably arrange the four circuits of the power switch AC circuit, the output rectification AC circuit, the input signal current loop, and the output load current loop; reasonably select the length and width of the printed line to reduce the frequency response; Grounding point, avoid self-excitation; try to thicken the grounding wire, pay attention to the wiring direction, and turn less. 2.7 Reasonable shielding In order to prevent high-frequency switching power supply from interfering with other equipment or being disturbed, and preventing electrostatic discharge, shielding measures can be taken appropriately.
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