A Graphical Design Methodology Based on Ideal Gyrator and Transformer for Compensation Topology with Load-Independent Output in Inductive Power Transfer System

Compensation is crucial in the inductive power transfer system to achieve load-independent constant voltage or current output, near-zero reactive power, higher design freedom, and zero-voltage switching of driver circuit. This article proposes a simple, comprehensive, innovative graphic methodology for compensation topology realize output at zero-phase-angle frequencies. Four types graphical models loosely coupled transformer that utilize ideal gyrator are presented. The combination four with source-side/load-side conversion model can from source load. Instead previous methods solving equations derived circuits, frequency, zero-phase angle (ZPA) conditions, source-to-load voltage/current gain be intuitively obtained using circuit given this paper. In addition, not limited only research existing topology, based on paper, 12 novel topologies free constraints parameters independent load variations stated verified by simulations. prototype primary-series inductor–capacitance–capacitance (S/LCC) constructed demonstrate proposed approach. simulation experimental results consistent theory, indicating correctness method.