Take earth leakage protection's power supply circuit

• Main Author: FANG CHUNLIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The utility model discloses a take earth leakage protection's power supply circuit, including rectification filter circuit, PWM ON -OFF control circuit, constant voltage power supply circuit and leakage protection circuit, each circuit electricity is connected, leakage protection circuit includes controlling resistor R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacityC1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1, diode D2, diode D3, diode D4, diode D5, inductance L1, chip IC54123, magnetic ring ZT1, switch K1 and double -pole switch k2, when producing the electric leakage, the circular telegram of resistance R3, and twine in thread guide on the magnetic ring ZT1 leads to, follows theline that resistance R3 drew forth is passing through magnetic ring ZT1 produces induced electromotive force, makes earth leakage protection is played in the disconnection of double -pole switch k2. 本实用新型的种带漏电保护的电源电路，包括整流滤波电路