OVER-VOLTAGE PROTECTION CIRCUIT

摘要

An overvoltage protection circuit including inverter control part is provided to divide voltage into a proper value by forming a sensing part which is electrically opened. An overvoltage protection circuit comprises the followings: a sensing part(20) which is electrically opened in a place having a constant distance from an inverter output terminal(10); a voltage divider(30) which divides a voltage(V0) formed in sensing part by using resistor or capacitor; a rectifier(40) which is inputted in order to rectify an output voltage(V1) coming out from the divider; a capacitor part(50) for flattening an output voltage(V2) coming from rectifier; and an inverter control part determining a cut off or a restriction of an output voltage(V3) based on the sensing voltage.