Abstract
Abstract
now widely used in inverter circuit, the vast majority are type PWM inverter circuit.In order to study the PWM inverter circuit, first established the inverter
unipolar control desired circuit model, using IGBT used as a switching device, and the single phase bridge voltage type inverter circuit and PWM control circuit principle is analyzed, using MATLAB in SIMULINK for circuit simulation, the simulation results are given, and the using MATLAB with powergui module of the simulation waveform was analyzed by FFT ( harmonic analysis ).