The compatibility of the circuit board is very important for the good performance of its work. Its compatibility means that it can work normally in various electromagnetic environments and has no effect on its working ability. That is to say, it must have certain The ability to resist electromagnetic interference, it is best not to cause electromagnetic interference to other electronic equipment. If you can make the circuit board compatible, today ’s Fast turn pcb Int’l Co. will give you a detailed introduction.
1. The width of the first selected wire should be reasonable. The interference caused by the transient current on the circuit board is generated on the printed lines of the circuit board and is caused by the inductance of the printed wires. Therefore, when designing the circuit board, it is necessary to make the printed circuit The inductance of the wire is reduced.
2. In order to prevent crosstalk between circuit board conductors, when designing the wiring, do not run long-distance equal traces, try to make the distance between the wires open, and at the same time make the ground wire, signal wire and The power cord does not cross.
3. Take the correct wiring method. As mentioned above, if you use equal routing, you can reduce the inductance of the wire, but this will increase the distributed capacitance and mutual inductance between the wires. Therefore, if the layout conditions permit, it is best to use a cross-shaped Mesh wiring structure. The specific operation method is to perform horizontal wiring and vertical wiring on both sides of the printed board, and then use metallized holes to connect at the intersection holes.