Abstract
The mechanism of zero current switching and zero voltage switching is analyzed. The concept of a Source Reactance Lossless Switch (SRLS) is proposed. The switch can be implemented in a SRLS voltage rectifier and a SRLS current rectifier. Using the SRLS technique, several dc-to-dc resonant converters with constant switching frequency control are proposed, in which zero current switching and/or zero voltage switching can be maintained from full load to no load. Steady-state analysis is presented for two basic topologies, a Parallel-SRLS resonant converter and a Series-SRLS resonant converter. Experimental results are presented to verify the analysis.
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