Inverter short circuit protection circuit

The utility model provides a short-circuit protection circuit for an inverter. The short-circuit protection circuit comprises a current sampling circuit, a short-circuit protection circuit, an SPWM (sinusoidal pulse width modulation) rapid blocking circuit, an SPWM driving circuit and an alternating-current side singlechip control circuit, the current sampling circuit is connected with the AC voltage source and the input end of the short-circuit protection circuit. A second input end of the short-circuit protection circuit is connected with an internal working voltage source VCC2 and an unlocking output end of the alternating-current side single chip microcomputer control circuit, an output end of the short-circuit protection circuit is connected with an input end of the SPWM rapid blocking circuit and an input end of the alternating-current side single chip microcomputer control circuit, and an output end of the SPWM rapid blocking circuit is connected with a first input end of the SPWM driving circuit; the