An AC Voltage Stabilizer Controller Overvoltage Protection Circuit

Abstract

The invention relates to an overvoltage protection circuit for an AC voltage stabilizer controller, and the circuit comprises a power circuit, a reference circuit, a voltage signal detection circuit, and an overvoltage protection execution circuit. The circuit is high in voltage detection precision, is accurate in overvoltage protection execution, guarantees the high reliability of overvoltage protection execution, the simple design and low cost, and meets the actual demands of an AC voltage stabilizer better.

Description

technical field [0001] The invention relates to an AC voltage stabilizer, more specifically, to an AC voltage stabilizer controller overvoltage protection circuit. Background technique [0002] Due to the instability of the mains voltage, especially in some power supply places, the voltage fluctuation range is particularly large, which affects the normal operation of the electrical equipment, and even causes damage to the electrical equipment. Therefore, the market demand for AC voltage stabilizers is increasing, and users' requirements for the reliability and safety of AC voltage stabilizers are also increasing. Overvoltage protection is the key to reliable protection of load electrical equipment by AC voltage stabilizer. However, the current overvoltage protection circuit of the AC voltage stabilizer has the defects of complex circuit design, low measurement accuracy and poor protection reliability. [0003] Therefore, prior art urgently needs very big progress. Conten...

AI Technical Summary

Problems solved by technology

However, the overvoltage protection circuit of the current AC voltage regulator has the defects of complex circuit design, low measurement accuracy and poor protection reliability.

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