Improvement of performance of a series resonant DC link PWM inverter

This paper proposes a series resonant de link PWM inverter which is improved for better performance. The prototype inverter had the advantage of a small de inductance and output capacitors. At sm alter de inductance, it is important that the energy at dc inductance is controlled to be constant for better output control. Therefore, in this paper, the inverter is improved for better output performance and efficiency. As the result, the losses becomes smaller. This paper presents the design of improved inverter, the experimental results and the characteristics of the losses.