A stressless buck quadratic PWM soft switched converter

High switching frequency associated with soft commutation techniques is a trend in switching converters. Following this trend, it is presented a new topology of a PWM Buck Quadratic converter. The DC voltage conversion ratio of this converter has a quadratic dependence on duty cycle, providing a large step-down. The circuit proposed is able to operate with soft switching in a pulse-width-modulation (PWM) way. In addiction such converter provides a high efficient operating condition for a wide load range at high-switching frequency. In order to illustrate the operational principle of this new converter a detailed study, including simulations is carried out. The validity of this new converter is guaranteed by the obtained results.