Fig. 13(a) shows the simulated waveforms of the proposed inverter. The peak amplitude of the current, I1 , is maintained constant, but the envelope of the peak value of current, Ixp , has a rectified sinusoidal waveform. Hence, the secondary current, I2 , and the resultant ac output current, Iac , have sinusoidal waveforms and unity power factor. Furthermore, voltage, Vx , on the decoupling capacitor pulsates at twice the utility frequency.