AC voltage stabilizer circuit principle is basically the same, but basically (AC parameter regulator exceptions) are input switch sampling circuit, control circuit, voltage regulator, output protection devices, drives, display devices such as composition, the basic working principle and circuit composed as follows: 

 1, the input switch: small air switch work switch input AC voltage stabilizer, are generally limited flow protection circuit breakers, it can exchange regulator itself and electrical equipment play a protective role. 

 2, the voltage regulation device: a device to regulate the output voltage, it can increase or decrease of the output voltage is one of the most important parts of the AC voltage stabilizer. 

 3, the sampling circuit: its exchange regulator output voltage and current detection, the output voltage changes transmitted to the control circuit. 

 4, the drive: the control circuit of the control signal is weak, so it is necessary to use the drive for power amplification and conversion. 

 5, driver protection devices: a connected and disconnect the AC regulator output device, commonly used relays or contactors or insurance, etc.. 

 6, the control circuit: it sampling circuit detection model analysis, when the output voltage is high, the control signal is sent to the drive voltage is reduced, the drive will drive the voltage regulator output voltage is reduced, when the output when the voltage is low, the control signal is sent to the drive voltage increases, the drive will drive the voltage regulator output voltage to increase the stability of output voltage to achieve stable output purposes. 

 When the detected output voltage or current exceeds the regulator's control. Will control the output control circuit protective device to disconnect the output and protection of electrical equipment, in the normal output of the protection device is connected to the output electrical equipment can ensure a stable supply voltage. 


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