This paper mainly designed a three-phase inverter to ARM microprocessor core chips. First, the concept, development and application areas of the inverter technology are briefly introduced. Second, it analyzed the principle of the SPWM technique and discussed several SPWM generation methods. Hardware is divided into three parts, inverter, detection circuit and the main control unit. Inverter used intelligent power module, which greatly simplifies the complexity of the part of the inverter circuit. The voltage detection and current detection constituted the detection circuit. chip LPC2131 was selected as Master control unit, with its PWM module, the output SPWM waveform can control the inverter circuit.
Keywords:Three-phase inverter,SPWM,PS21563,ARM,inverter technology