Analysis and design of ۵th orderП type voltage-fed load resonant converters with immittance property tailored for constant current applications

Resonant LC tanks with immittance property can be a suitable candidate to achieve constant current output in load resonant converters (LRCs) topologically. In this work, ۵th order Π type LC tanks are investigated to accede this goal and design conditions are achieved. Finally, using a selected Π type tanks, a LRC is designed based on minimization of kVA/kW characteristic of the IPRTs. Designed circuit is a ۷۰W constant current converter that has high robustness, minimum reactive power and ZVS on the inverter’s MOSFETs against load variation without using any feedback loop.