PCB Technical - Pay attention to the following points in the design of PCB printed board diagrams 　

Pay attention to the following points in the design of PCB printed board diagrams
1. Wiring direction: From the perspective of the welding surface, the arrangement of the components should be as consistent as possible with the schematic diagram. The wiring direction is best to be consistent with the wiring direction of the circuit diagram. Because the welding surface usually needs to be tested for various parameters during the production process, so This is convenient for inspection, debugging and maintenance during production (Note: It refers to the premise that the circuit performance and the installation and panel layout requirements of the whole machine are met).

2. The arrangement and distribution of the components should be reasonable and even, and strive to be neat, beautiful, and strict in structure.
3. Resistor and diode placement methods: divided into two types: horizontal placement and vertical placement
4. Potentiometer: the placement principle of IC holder

5. Arrangement of in and out terminals
6. Pay attention to the pin arrangement sequence when designing the wiring diagram, and the component pin spacing should be reasonable. x
7. Under the premise of ensuring the performance requirements of the circuit, the design should strive for reasonable wiring, use less external jumpers, and route the wires according to certain smooth charging requirements, and strive to be intuitive, easy to install, height and overhaul.
8. When designing the wiring diagram, the wiring should be as few as possible to bend, and the lines should be simple and clear. x
9. The width of the wiring strips and the spacing of the lines should be moderate, and the spacing between the two pads of the capacitor should be as consistent as possible with the spacing of the capacitor lead pins;
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