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Analysis, design, and optimization of a secondary-side resonant converter operating in the discontinuous capacitor voltage mode

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2 Author(s)
Swamy, M.M. ; Energy Manage. Corp., Salt Lake City, UT, USA ; Bhat, A.K.S.

A high-frequency link parallel resonant DC/DC power converter (PRC) operating in the lagging power factor mode with the resonating capacitor on the secondary side of the high-frequency (HF) transformer is analyzed for operation in the discontinuous capacitor voltage mode (DCVM) using a state-space approach. Converter equations are solved for operation under steady-state condition. Based on the analysis, design curves are obtained for DCVM operation. A method of obtaining the optimum operating point under certain constraints for DCVM operation is developed and is used to develop a simple design procedure. Experimental results obtained with a MOSFET-based 1 kW PRC are presented to support the theory

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Industrial Electronics, IEEE Transactions on  (Volume:40 ,  Issue: 3 )