A time-sharing principle-based current-fed ZCS high-frequency resonant self-commutated inverter for inductive power transfer

This paper presents a novel prototype of a timesharing frequency doubler principle-based current-fed zero current soft-switching (ZCS) high frequency resonant (HF-R) inverter for inductive power transfer (IPT) systems. The newly-proposed ZCS HF-R inverter is suitable for producing a higher frequency resonant current with switching power loss reduction by using a middle-class switching frequency insulated-gate-bipolar-power transistor (IGBT) for the IPT systems. In this paper, the performances of the newly-proposed ZCS HF-R inverter are demonstrated in experiment, after which the feasibility of the high frequency-link IPT power conversion circuit is discussed from a practical point of view.