Patent ID: 7054411

Claim:
A multichannel, contactless power transfer system, comprising: a primary power inverter disposed on a stationary side of the system; an auxiliary power inverter disposed on said stationary side of the system; a rotary transformer having a primary side thereof disposed on said stationary side of the system and a secondary side disposed on a rotating side of the system; and said rotary transformer configured to couple primary power from an output of said primary power inverter to a primary power voltage output on said rotating side of the system, and said rotary transformer further configured to couple auxiliary power from an output of said auxiliary power inverter to at least one auxiliary voltage output on said rotating side of the system; a leakage inductance of said rotary transformer used as part of a resonant network for said primary power inverter; and a pair of resonant capacitors configured within said primary side of said rotary transformer, said resonant capacitors also comprising part of said resonant network for said primary power inverter.