Surge protection circuit

The invention relates to a surge protection circuit with the performance of preventing surge voltage surge. The surge protection circuit includes a live wire input terminal, null line input terminal,Ground wire Input terminal, live wire output end and null line output end, and also includes a gas discharge tube I, gas discharge tube II, gas discharge tube III, resistor I, resistor II, resistor III, resistor IV, temperature fuse I, inductor I and inductor II. The surge circuit is simple in structure and high in safety, and adopts a frequency modulation technology to eliminate an acoustic resonance phenomenon, can provide overcurrent, overvoltage and abnormal protection, has strong reliability, and has a long service life and reduce cost. The invention is suitable for popularization and application in the field of electronic components. 本发明涉及种具有防浪涌电压冲击的性能的流浪涌保护电路。该浪涌保护电路包括火线输入端、零线输入端、地线输入端、火线输出端及零线输出端，还包括气体放电管、气体放电管二、气体放电管三、电阻、电阻二、电阻三、电阻四、温度保险丝、电感及电感二，该浪涌电路结构简单，安全性强，采用频率调制技术消除声共振现象，能够提供过流、过压和异常保护，可靠性强，且使用寿命长，降低