Applying soft switching techniques to switched mode converters can improve the converter efficiency and reduce the converter electromagnetic interference emissions. In order to provide soft switching condition for semiconductor elements, usually extra auxiliary elements are required. Soft single switched converters, zero voltage transition and zero current transition converters, converters with active clamp, quasi-resonant converters and resonant converters are popular soft switching converters. Switched resonator converters (SwRC) are a category of soft switching converters that use more than one switch in their topologies which can increase the total converter cost. Their advantage is having a small resonant inductor which makes them proper solution for implementation of high density power supplies. In this dissertation, a novel family of switched resonator converters is proposed with only one switch. The presented converters are fully soft switched and thus, the converter efficiency is high as compared to other soft switching converters. Using only one switch, results in simple control and gate driver circuits. In addition, the price, volume and weight of the converter are reduced. Inherent power factor correction feature is another advantage of the proposed family when used as AC to DC converter. The proposed converter family consists of buck, boost and buck boost converters, bidirectional converter, ZVZCS buck converter and isolated converter. The proposed converters are introduced and their theoretical analyses are presented in the dissertation. Design considerations of each converter are presented and simulation results are provided in the dissertation. Prototypes of the converters are implemented and the experimental results are presented to verify the theoretical analysis. Key Words Switched Resonator Converters, Soft Switching, LED Driver Circuit, Bidirectional Converter, Zero Voltage Switching, Zero Current Switching.
