2009 · 24 citations · 5 references
EngineeringElectrical EngineeringEnergy ManagementEnergy SystemsPower ElectronicsAc-dc ConversionAc-dc ConvertersDc-dc ConversionDc-dc ConvertersPower Factor CorrectionPower ManagementCore LossesEnergy Conversion EfficiencyLight-load EfficiencyLight-load OperationPower ConversionPower Conversion EfficiencySwitching Loss ReductionSwitching Strategies
A method of maintaining high power-conversion efficiency across the entire load range and its circuit implementations are described. The proposed method substantially increases the conversion efficiency at light loads by minimizing switching and driving losses of semiconductor switches, as well as core losses of magnetic components. These losses are minimized by periodically turning off and on the power converter and by controlling the converter so that when the converter is on it operates at the power level that exhibits the maximum efficiency. The performance of the proposed method was evaluated on a 500-W, 400-V/12-V dc/dc converter and a 1-kW ac/dc boost PFC front end.
5
Topologies and design considerations for distributed power system applications
F.C. Lee, Peter Barbosa, Peng Xu et al. · Proceedings of the IEEE · 2001 · 167 citations
Design Challenges For Distributed Power Systems
Fred C. Lee, Ming Xu, Shuo Wang et al. · 2006 · 39 citations
Engineering, Computer Engineering, Electrical Engineering +17