/How to solve the compatibility design of circuit board?
Electromagnetic compatibility refers to the ability of electronic equipment to work harmoniously and effectively in various electromagnetic environments.The purpose of this paper is to make electronic equipment not only restrain various external interference, but also reduce the electromagnetic interference of electronic equipment to other electronic equipment.
1. Select a reasonable wire width. Since the impact interference caused by transient current on PCB PCB printed circuit board lines is mainly caused by the inductance component of printed wires, the inductance of printed wires should be minimized.
2, USES the correct wiring strategy USES the equal linear conductor inductance can be reduced, but the mutual inductance between conductor and distributed capacitance increases, the layout of permitting, had better use well glyph structure network cabling, specific side lateral approach is printed circuit board wiring, the other side vertical wiring, then at the cross hole is connected with metallized hole.
3. In order to suppress the crosstalk between the PCB circuit board wires, the design of wiring should try to avoid long distance equal walk, as far as possible to open the distance between the wires, and the signal lines and ground wires and power lines should not cross.The cross – interference can be effectively suppressed by setting a ground – to – ground printing line between some signal lines sensitive to interference.
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