Evaluation of the Lossless Zero Voltage Period Quasi-resonant DC Link Topology for a Dual Input Soft Switched Inverter

In this paper the possibility is evaluated to develop a quasi-resonant DC link inverter with two DC inputs of different voltages by the use of a quasi-resonant circuit that provides a lossless zero voltage period. The respective topology is presented and it's working principle throughout a resonant cycle is explained. Circuit simulation is performed using the Matlab Simulink environment. Regarding control of the resonant process, optimized trip parameter selection has been suggested.