An Active Clamped Boost Converter based system for Wireless Charging Applications

Abstract

This paper introduces an inductive power transfer (IPT) system for various charging applications. An actively clamped boost converter is presented, capable of generating high-frequency AC signals for transferring power wirelessly. The SS (series-series) compensation is employed as it is load-independent and maximizes the power transfer without any bifurcation issues. The clamping capacitors help to minimize the voltage across the switches, and the boost inductor reduces the input EMI filter requirements. Moreover, the diode bridge rectifier on the receiver side is employed to charge the battery. Design aspects and mathematical analysis is explained in detail also the feasibility of the proposed converter is verified by simulation on MATLAB/Simulink platform for a 1.2 KW system and the small-scale laboratory prototype for a 500W system.