This paper analyzes the control circuit of Spot Welding Inverter Power based on Digital Signal Processor(DSP),I/O of DSP are expanded according to the control system and the voltage is transformed.

• 分析了以数字信号处理器(DSP)为核心的逆变点焊电源的控制电路,按照系统要求对DSP进行了I/O扩展,根据实际进行了电平转换。