Dual zeta converter with reduced ripple for sensitive load applications

A clean and ripple free DC source is an essential requirement for powering sensitive loads like LED panels and high precision test equipment. The zeta converter is ideal for such applications and offers high conversion efficiency along with other attractive features like electrical isolation, non-inverting output and buck boost capability. In this work, two zeta converters are operated simultaneously for the purposes of reducing the output ripple, for sharing the primary side components and for sharing the load current. The two converters are operated out of phase for this simultaneous operation. To maintain high efficiency a Zero Voltage Switching (ZVS) topology is also utilized. Simulation results are presented at the end stating the outcome of the configuration.