STM32-based high-performance all-digital sine wave inverter power supply

The invention discloses STM32-based high-performance all-digital sine wave inverter power supply, which comprises a direct-current push-pull boost-up circuit, a sine inverter circuit, an output filter circuit, a drive circuit, a sampling circuit, a microcontroller module, lattice liquid crystal and an auxiliary power supply module. According to the STM32-based high-performance all-digital sine wave inverter power supply, the input direct-current is boosted to about 350V bus voltage by the push-pull boost-up circuit by a front stage; a full-bridge inverter circuit is adopted by a rear stage; inverter bridge output is filtered through a filter; voltage sampling is carried out with an isolation transformer; and current sampling is carried out by a current transformer, so that the stability of output of the power supply is increased by forming a feedback link.