Reasonable Arrangement of Components in PCB Design

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It is important to consider several factors when designing circuit boards.

Firstly, the circuit design should be assessed based on its merits and the product's intended use. If the requirements are not harsh, priority should be given to the circuit design's aesthetic appearance. However, if high performance is necessary, a double panel should be used and the cable's aesthetics should be prioritized, especially if it is packaged inside and not visible.

Secondly, the circuit board should be able to withstand vibrations and external forces during installation and operation. Proper hole placement and a reasonable board shape are important considerations. The distance between the holes and the board's edge should be at least the diameter of the hole. Additionally, the weakest section of the board caused by a shaped hole should have sufficient bending strength. Connectors on the board should be fixed properly to ensure long-term reliability.

Reasonable Arrangement of Components in PCB Design

Thirdly, heat is a crucial consideration for high-power devices. It is important to place them in suitable locations and to ensure that proper heat conditions are met. In sophisticated analog systems, the temperature field generated by these devices can negatively impact the fragile preamplifier circuit. Thus, special attention should be paid to this issue. The power section should be made into a single module and thermal isolation measures should be taken with the signal processing circuit.

Fourthly, signal interference is a critical factor in PCB layout design. It is important to separate weak and strong signal circuits, AC and DC parts, and high and low frequency parts. The direction of signal lines, the arrangement of ground lines, and proper shielding and filtering measures are also essential considerations.

Finally, installation is crucial to ensure that the circuit board fits smoothly into the chassis, casing, or slot in specific applications. This will prevent space interference, short-circuits, and other accidents. The specified connector should also be placed in the designated position on the chassis or housing.

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