What is the working principle of pcb?

The basic principle of PCB (printed circuit board) board is to connect electronic components and circuits to wires on PCB board and metal impedance PCB.

Trace, realize the communication and exchange between different electronic components. When the power supply on the circuit board is connected, the current will be emitted from the power supply and then transmitted in the circuit board through some electronic components (such as resistors, capacitors, transistors, etc.). ), thus realizing the function of the circuit board. As a basic electronic component, PCB is used in many electronic devices, such as computers, mobile phones, televisions, automobiles and so on.

Specifically, when the power supply on the circuit board is turned on, electrons in electronic components will move with the changes of power supply voltage, resistance and other parameters, thus realizing current transmission. In the transmission process, the electrical characteristics of various components in the circuit board play an important role, such as capacitors can store electric energy, resistors can adjust current, transistors can amplify current and so on. All the electronic components on these circuit boards are combined together and cooperate with each other, so that the circuit boards can complete various tasks.

So, simply speaking, the working principle of PCB board is to convert electric energy into specific current, voltage, signal and so on. Different circuit structures are formed by different components on the circuit board, so as to provide various functions and work support for the equipment.