DC inverter power supply based on PWM

The utility model relates to a PWM-based DC inverter power supply, and belongs to the field of power supplies. The direct-current inverter power supply is stable in output voltage and high in voltage quality. According to the technical scheme, the PWM-based direct-current inverter power supply comprises a PWM waveform control circuit, a switch control circuit, a transformer T3, a rectifying circuit and a filter circuit, the signal output end of the PWM waveform control circuit is connected with the signal input end of the switch control circuit, the switch control circuit is arranged between the main circuit and a primary coil of the transformer T3, and a secondary coil of the transformer T3 is sequentially connected with the rectifying circuit and the filter circuit. 本实用新型为一种基于PWM的直流逆变电源，属于电源领域；提出一种输出电压稳定、电压质量较高的直流逆变电源；技术方案为：一种基于PWM的直流逆变电源，包括：PWM波形控制电路、开关控制电路、变压器T3、整流电路和滤波电路；所述PWM波形控制电路信号输出端与开关控制电路信号输入端连接，所述开关控制电路设置于主电路和变压器T3原线圈之间，所述变压器T3副线圈依次连接整流电路和滤波电路。