ZVS LCL push-pull DC-DC converter with closed loop controlled PI controller

A high performance ZVS LCL push-pull DC-DC converter under closed loop control is analyzed with PI controller. Soft switching acquired by the primary MOSFET switches under LCL combination reduces the switching stress. Single device voltage drop on the primary side and resonating capacitor acting as tuned filter in the load side justifies an efficient converter. Quick settling time of error in the output for PI controller justifies its superior performance over other controllers. Circuit model developed for open and closed loop circuits are analyzed and simulated. Simulation results help in verifying the validity of PI controller for the closed loop controlled system.