Low loss inverter circuit based on buck and boost topology

摘要

This paper proposed inverter circuit for low power applications that can generate AC output voltage at fundamental output frequency larger than input voltage without need to increase the number of power switches, several isolated DC source or capacitors and transformer. By applying appropriate duty cycle and PWM switching pattern to the circuit, the near sinusoidal output voltage can be realized with voltage harmonic distortion nearly 5% without the use of filter at output terminal. MATLAB/SIMULINK is used to simulate the proposed circuit.