Output short-circuit protection circuit of high-frequency inverter

The invention discloses an output short-circuit protection circuit of a high-frequency inverter, which comprises an H-bridge module, an LC filter module, an output current acquisition module and an output protection module, and is characterized in that the output protection module comprises a first dual-comparison control module, a second dual-comparison control module and a zero-cross detection module, the first dual-comparison control module smoothly receives an output current signal of the H-bridge module and sends a first short-circuit protection control signal to a high-level turn-off signal input end of the H-bridge module, and the second dual-comparison control module smoothly receives the output current signal of the H-bridge module and generates a comparison result signal. The zero-cross detection module controls the second dual-comparison control module to send a comparison result signal to the first dual-comparison control module when a zero-cross detection signal is at a low level, and the first d