What are the important functions of a circuit board?

As a core component of electronic products, circuit boards have many important functions. Here are some common board features:


1. Signal transmission: The circuit board can realize the transmission and processing of signals, thereby realizing communication between electronic devices. For example, the signal lines on the motherboard can transmit data signals, audio signals, video signals, etc.

2. Power management: The circuit board can provide stable power voltage and current to manage and supply power to electronic devices. Through power circuits, voltage stabilizing chips, filters and other components, the power quality and reliability required for the normal operation of electronic equipment are ensured.
3. Signal processing: The circuits on the circuit board can perform signal processing, including signal amplification, filtering, digital conversion, analog conversion and other operations, so as to process the collected sensor signals or other input signals so that they can be recognized and utilized by the device.

4. Control and logic: The control circuit on the circuit board can implement various logic functions, such as calculation, control, timing control, etc. These functions can be implemented through digital logic circuits (such as microprocessors, FPGAs), analog circuits, or hybrid circuits.

5. Current protection: Current protection circuits can be integrated on the circuit board, such as overload protection, short circuit protection, overvoltage protection, etc., to ensure the safe operation of electronic equipment and avoid damage or accidents.

6. Signal and data conversion: The circuit board can realize conversion between different signal types or data formats, such as conversion of analog signals to digital signals, conversion of digital signals to analog signals, conversion of serial communication to parallel communication, etc.

7. Storage and access: The circuit board can integrate memory chips for storing and reading data, such as flash memory, SD card slots, RAM, etc., to meet the data storage and reading needs of electronic devices.

The above are just some common circuit board functions. In fact, the functions of circuit boards are diverse. According to different electronic equipment and application fields, the functions of circuit boards will also vary.