This paper proposes new rectifiers in the center-tap transformer to provide higher input/output (I/O) voltage gain with an equal transformer turns-ratio in the LLC resonant converter: a voltage tripler rectifier and a voltage quadrupler rectifier, which have simple structures with one capacitor and two diodes, and three and four times higher I/O voltage gain than a center-tap rectifier, respectively. Each rectifier is compared in terms of the transformer turns-ratio and the magnetizing offset current, and the voltage and current stresses in the capacitors and diodes. The validity of these proposed rectifiers in the half-bridge (HB) LLC resonant converter is confirmed by the experimental results from a 100 V/200 W output prototype.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.