Patent ID: 8558411

Claim:
A multi-input wireless power supply comprising: an AC/DC rectifier circuit capable of accepting a first input voltage or a second input voltage, wherein said AC/DC rectifier produces a rectified output; a sensor for detecting which of said first input voltage and said second input voltage is connected to said multi-input wireless power supply; a plurality of switching circuits each coupled to said rectified output; a first tank circuit coupled to one of said plurality of switching circuits, wherein characteristics of said first tank circuit are selected for transferring power to a remote device as a function of said first input voltage; a second tank circuit coupled to a different of said plurality of switching circuits, wherein characteristics of said second tank circuit are selected for transferring power to said remote device as a function of said second input voltage, wherein said characteristics of said second tank circuit are different from said characteristics of said first tank circuit; a low power DC/DC converter coupled to said AC/DC rectifier for converting said rectified output; a microcontroller coupled to said low power DC/DC converter, wherein said microcontroller is programmed to control said plurality of switching circuits based on output from said sensor.