1. What is a power controller

A power controller is a hardware component that is usually integrated into electronic devices such as a video card, motherboard, and keyboard. It can manage and control the power output required by the device, while monitoring the input voltage, current and power changes, to maintain the safe and stable operation of the device.

2. Principles of the power controller

The working principle of power controller is based on feedback control system. When the input power supply voltage or load changes, the power controller detects these changes and sends the information back to the power supply to adjust the output voltage or current by controlling its switching tube or DC level to reach the target voltage, current, and power. This process is automatic and very responsive, usually within milliseconds.

3. Functions of the power controller

The role of the power controller is to ensure the safety and stability of the connected devices. It can prevent overcurrent, undervoltage, overheating, short circuit and other problems, so as to extend the service life of the equipment. Power controllers also improve energy efficiency, optimize power consumption, and provide additional functionality and protection for specific applications.