An evolution of regenerative snubber circuits

The use of switching regulator circuits at high power levels and high frequencies requires careful examination and control of the power dissipation during switching. In this paper, the authors show the process in which the PWM soft-single-switched converters were created. They operate with soft switching in a pulse width modulation way. In addition, such converters can work at high switching frequencies for wide load range. In order to illustrate the evolution process, it is presented topological and electrical properties of all these converters developed until the present moment. Simulation and experimental results are shown