Basic knowledge of popular science-what is the principle of ——PCB?

The full name of PCB is printed circuit board, which is printed circuit board. Printed circuit board

The principle is to put the circuit diagram on the board, form a pattern on the copper foil through chemical etching and other processes, and then make the board with required wires, holes and circuit components through drilling, pasting and exposure. Printed circuit board

The principle is to make the complex circuit simple and improve the reliability of the circuit.

The main principle of PCB is based on the interaction between circuit board and copper foil, and the specific principle is as follows:

1. circuit board: the circuit board is PCB.

The basis of design can be single layer or multi-layer, usually using glass fiber, plastic or ceramic materials. These materials usually have good insulation performance and mechanical strength to ensure safety and reliability.

2. copper foil: copper foil is PCB

The conductive material used in the design is used to form the wires and pads of the circuit. Copper foil can be made into lines, holes and component shapes needed in circuit diagrams by chemical etching and processing.

3. Components: Various electronic components, such as electrolytic capacitors, resistors, transistors and integrated circuits, need to be installed on the circuit board. These components have a specific position and arrangement on the PCB.

According to the above principle, PCB can realize the function of the circuit. Through PCB

This design can simplify circuit connection and layout, improve circuit performance, reduce circuit volume and cost, and improve circuit maintainability and reliability.