本单相正弦波逆变电源的设计，以12V蓄电池作为输入，输出为36V、50Hz的标准正弦波交流电。该电源采用推挽升压和全桥逆变两级变换，在控制电路上，前级推挽升压电路采用SG3525芯片控制，闭环反馈；逆变部分采用驱动芯片IR2110进行全桥逆变，采用U3990F6完成SPWM的调制，后级输出采用电流互感器进行采样反馈，形成双重反馈环节，增加了电源的稳定性；在保护上，具有输出过载、短路保护、过流保护、空载保护等多重保护功能电路，增强了该电源的可靠性和安全性；输出交流电压通过AD637的真有效值转换后，再由STC89C52单片机的控制进行模数转换，最终将电压值显示到液晶12864上，形成了良好的人机界面。该电源很好的完成了各项指标，输入功率为46.9W，输出功率为43.6W，效率达到了93 ，输出标准的50Hz正弦波。-The single-phase sine wave inverter is designed to 12V battery as input sine wave AC output to the standard 36V, 50Hz' s. The push-pull power boost and full-bridge inverter levels change in the control circuit, the first-stage booster circuit using SG3525 chip push-pull control, closed loop feedback　inverter part of the driver chip IR2110 full bridge inverter, using U3990F6 completed SPWM modulation, the output stage is sampled using a current transformer feedback, forming a double feedback loop, increasing the stability of the power　in the protection, with multiple output overload protection, short circuit protection, over-load protection functional circuits, and enhance the reliability and security of supply　the output AC voltage through AD637 rms converter, and then analog to digital conversion is controlled by the microcontroller STC89C52 final voltage value is displayed on the LCD 12864, forming a good The man-machine interface. The completion of the power good indicators, i