Basic Circuit Composition Of Automatic Voltage Regulator

The principle of the main circuit of Automatic Voltage Regulator is basically the same, but basically (except for AC parameter voltage regulator) it is composed of input switch sampling circuit, control circuit, voltage regulating device, output protection device, drive device, display device, etc. Its basic working principle and circuit composition are as follows:
1. Input switch: As the input working switch of the automatic voltage regulator, it generally adopts a small air switch type circuit breaker with limited current protection, which can protect the automatic voltage regulator itself and electrical equipment.
2. Voltage regulating device: It is a device that can adjust the output voltage. It can increase or decrease the output voltage and is one of the main components of the automatic voltage regulator.
3. Sampling circuit: It detects the output voltage and current of the automatic voltage regulator and transmits the output voltage change to the control circuit.
4. Drive device: Since the control electrical signal of the control circuit is weak, a drive device is needed for power amplification and conversion.
5. Drive protection device: A device that connects and outputs the automatic voltage regulator, generally using relays or contactors or fuses.
6. Control circuit: It analyzes the sampled circuit detection model. When the output voltage is high, it sends a control signal to the drive device to reduce the voltage, and the drive device drives the voltage regulator to lower the output voltage. When the output voltage is low, it sends a control signal to the drive device to increase the voltage, and the drive device drives the voltage regulator to increase the output voltage, so that the output voltage is stabilized to achieve the purpose of stable output.
When it is detected that the output voltage or current exceeds the control range of the automatic voltage regulator. The control circuit will control the output protection device to disconnect the output to protect the electrical equipment. In normal conditions, the output protection device is connected to the output, and the electrical equipment can have a stable voltage supply.