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In this paper, a new interleaved zero-current-switching PWM boost converter is introduced which uses only one auxiliary switch to provide soft-switching condition. In the proposed interleaved converter, soft switching is obtained for all semiconductor devices. Thus, the reverse-recovery losses of boost diodes are reduced. In addition, high efficiency is achieved due to reduction of switching losses...
A new soft-switched bidirectional dc-dc converter with coupled inductors is proposed in the paper. The proposed converter can operate with soft-switching, fixed switching frequency, and the switch stresses of a conventional PWM converter with coupled inductor regardless of the direction of power flow. These features are due to a very simple auxiliary active clamp circuit that is operational regardless...
Decades of research have seen single-phase boost-type PWM converters be employed as front-end PFC rectifiers in commercial power supplies. The benefits of employing this technology to comply with power quality standards while assuring high efficiency and low volume and weight have been observed. However, this work shows that further efforts can be driven into new topologies. In this context, a new...
In three-phase PFC converter, there exist severe switch antiparallel diode reverse recovery problems. The effective measures of compound active-clamping and minimal voltage active-clamping techniques in single phase PFC are extended to three-phase PFC. A family of active-clamping ZVS soft switching PFC converter is derived. They can effectively suppress the diode reverse recovery and realize ZVS for...
In three-phase PFC converter, there exist severe switch antiparallel diode reverse recovery problems. The effective measures of compound active-clamping and minimal voltage active-clamping techniques in single phase PFC are extended to three-phase PFC. A family of active-clamping ZVS soft switching PFC converter is derived. They can effectively suppress the diode reverse recovery and realize ZVS for...
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