Analysis of multi-resonant LLCLC converter

Abstract

The paper deals with the analysis of LLCLC converter. It is a resonant converter which was derived of the LLC converter. The difference between is in adding a notch filter to the resonant circuit. This article focuses mainly on the mathematical analysis of the resonant circuit. In the first part it is discussed about the voltage transfer function of the converter and further we focus on the analysis of the resonant frequencies of the filter. In conclusion, the discovered relationships are applied to the design of LLC converter.