A scheme of digital inverter power supply system is given in this paper. The system input 36VDC, through the Boost circuit, the single-phase inverter turns DC into high frequency alternating current, then the high frequency transformer is isolated by the high frequency transformer, and the high frequency part is filtered through the low pass filter, and the sine wave alternating current of 220VAC 50Hz is obtained. With STM32F103VCT6 as the system controller, through the software programming, through the Boost circuit, the output voltage and current double closed loop PWM soft switch control is carried out, and the system integration is completed. The experimental results show that the system meets the design requirements and the system design is feasible.
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