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How to reduce the mutual interference between digital signals and analog signals? Before designing, we must understand the two basic principles of electromagnetic compatibility (EMC): the first principle is to reduce the area of ​​the current loop as much as possible; the second principle is that the system uses only one reference plane. On the…

The arrangement of components on PCB should follow certain rules. (1) Components should be installed in the best position for natural heat dissipation to make the heat transfer path as short as possible. Components on the same PCB should be arranged according to their heat generation and heat dissipation degree as much as possible. Components…

Electronic enthusiasts often make circuit boards by themselves. It is difficult to make high-quality circuit boards using traditional copper-clad boards. This article introduces an optical printed circuit board. The plate making process is time-saving and labor-saving, the process is simple, double-sided wiring can be done, and the quality of the produced circuit boards is very…