Steady state analysis of parallel-loaded resonant converter with one-cycle control

This work presents the steady-state dynamic analysis of parallel-loaded resonant converter PRC with a one-cycle controller at the output rectifier stage. The goal is to verify the intrinsic regulation and robustness properties of one-cycle control at the new proposed structure. The analysis starts with the first harmonic approximation method, introducing the drawbacks associated to this control methodology. A suitable operating frequency is proposed and the converter characteristic parameters are obtained. These results are compared with the closed-form solutions obtained from the converter bilinear model. Experimental results from a prototype are also presented to support the developed theory.