CONTACTLESS ENERGY TRANSFER APPARATUS

摘要

A flux generator base unit (20) electromagnetically coupled with a receiving unit to transfer energy into the receiving unit. The base unit (20) includes one or more permanent magnets (42) that produce a magnetic flux, which passes through a receiver coil (30) in the receiving unit. The receiver coil (30) is either disposed in a separate housing (29) that is electrically connected with a portable device, or integrated into the housing of the portable device. Either the permanent magnets (42) or a flux shunt (214) is moved in the base unit to produce the varying magnetic flux that is coupled to the receiver coil. As a result of the varying magnetic field experienced by the receiver coil, an electric current is induced in the receiver coil, which is conditioned (e.g., rectified, filtered, and regulated) by a conditioning circuit (34) to charge a battery or energize electronics contained in the portable device.