Method and apparatus for regulating and controlling a double-coupled inductive power transfer system

摘要

An apparatus for wirelessly transmitting charging power to a vehicle is provided. The apparatus comprises a first coupler having a first reactance at an operating frequency and configured to receive power wirelessly from a power source, wherein the first coupler is wound on a ferromagnetic core. The apparatus comprises a first capacitor having a second reactance at an operating frequency and electrically connected in series with a first coupler, the second reactance being equal to the magnitude of the first reactance Have The apparatus comprises a second capacitor electrically connected in parallel across the first coupler and the first capacitor. The apparatus comprises a first base coupler configured to be electrically connected in parallel across a second capacitor via a first switch. The magnitude of the peak voltage across the second capacitor is proportional to the magnitude of the peak voltage induced in the first coupler at the operating frequency.