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

摘要

A generalized steady-state analysis of resonant converters using antwo-port model and Fourier-series approach is presented. Analysis isnpresented for both voltage-source (VS) and current-source (CS)-typenloads. Analysis can also be used either for variable-frequency (half- ornfull-bridge) or fixed-frequency (phase-shift control for full-bridge)noperation. Steady-state solutions have been obtained. Particular casesnare considered to show the method of application in analyzing differentnschemes. A simple design procedure is given for two particular cases tonillustrate the use of analysis in obtaining design curves and inndesigning the converters. Experimental results obtained from anMOSFET-based 500-W fixed-frequency LCL-type resonant converter arenpresented to verify the analysis