Excellent PCB component layout principles
Sep 24,2024
Firstly, divide the area according to the functional units of the circuit, and consider all the components of the circuit as a whole. Divide each functional circuit unit into a general area according to the module, making the layout suitable for signal flow and maintaining consistent direction as much as possible.
As shown in the above figure, the general functional modules include power supply, core control, signal input processing, signal output processing, connector, human-computer interaction, and so on. Divide the module areas according to the actual functional requirements of the circuit board. The general principle is that the power supply part is centrally arranged at the edge of the board, the core control part is in the middle of the board, the signal input part is located on the left side of the core control part, and the signal output part is located on the right side of the core control part. The connector part should be arranged as close as possible to the edge of the board, and the human-machine interaction part should be arranged reasonably considering the requirements of ergonomics. On the premise of ensuring electrical performance, the components of each functional module should be placed on a grid and arranged parallel or perpendicular to each other for neatness and aesthetics.
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