08169185 is referenced by 221 patents and cites 266 patents.

A system and method for variable power transfer in an inductive charging or power system. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field. A receiver comprises a means for receiving the energy from the alternating magnetic field from the pad and transferring it to a mobile device, battery, or other device. In accordance with various embodiments, additional features can be incorporated into the system to provide greater power transfer efficiency, and to allow the system to be easily modified for applications that have different power requirements. These include variations in the material used to manufacture the primary and/or the receiver coils; modified circuit designs to be used on the primary and/or receiver side; and additional circuits and components that perform specialized tasks, such as mobile device or battery identification, and automatic voltage or power-setting for different devices or batteries.

Title
System and method for inductive charging of portable devices
Application Number
12/116876
Publication Number
8169185 (B2)
Application Date
May 7, 2008
Publication Date
May 1, 2012
Inventor
Michael Sears
Ben Lomond
CA, US
Afshin Partovi
Sunnyvale
CA, US
Agent
Fliesler Meyer
Assignee
Mojo Mobility
CA, US
IPC
H01M 10/46
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