An improved boost PWM soft-single-switched converter with low voltage and current stresses

This paper presents an improved regenerative soft turn-on and turn-off snub ber applied to a boost pulsewidth-modulated (PWM) converter. The boost soft -single-switched converter proposed, which has only a single active switch, is able to operate with soft switching in a PWM way without high voltage a nd current stresses. This is achieved by using an auxiliary inductor, which is magnetically coupled with the main inductor of the converter. In order to illustrate the operating principle of this new converter, a detailed stu dy, including simulations as well as experimental results, is carried out. The validity of this new converter is guaranteed by the obtained results.