A generalized steady-state analysis of resonant converters using two-port model and Fourier-series approach

A generalized steady-state analysis of resonant power converters using a two-port model and the Fourier-series approach is presented. Analysis is presented for both voltage-source and current-source type loads. Analysis can also be used either for variable frequency or for fixed-frequency (phase-shift control) operation. Steady-state solutions have also been obtained. Particular cases are considered to show the method of application in analyzing different schemes. A simple design procedure is given for a particular case ((LC)(LC)-type) to illustrate the use of analysis in obtaining design curves and in designing the power converter. Experimental results obtained from a MOSFET based 500 W power converter are presented to verify the analysis for this particular case