Title :
Source reactance lossless switch (SRLS) for soft-switching converters with constant switching frequency
Author :
Liu, Yan-Fei ; Sen, Paresh C.
Author_Institution :
Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
4/1/1996 12:00:00 AM
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
Keywords :
DC-DC power convertors; electric reactance; rectifying circuits; resonant power convertors; switching circuits; DC-to-DC resonant converter; constant switching frequency control; current rectifier; parallel-SRLS resonant converter; series-SRLS resonant converter; soft-switching converter; source reactance lossless switch; steady-state analysis; voltage rectifier; zero current switching; zero voltage switching; DC-DC power converters; Rectifiers; Resonance; Steady-state; Switches; Switching converters; Switching frequency; Voltage control; Zero current switching; Zero voltage switching;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
