Invention Grant
- Patent Title: Omnidirectional wireless power transfer system
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Application No.: US15417353Application Date: 2017-01-27
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Publication No.: US10333353B2Publication Date: 2019-06-25
- Inventor: Junjie Feng , Qiang Li , Fred C. Lee , Minfan Fu
- Applicant: Virginia Tech Intellectual Properties, Inc.
- Applicant Address: US VA Blacksburg
- Assignee: Virginia Tech Intellectual Properties, Inc.
- Current Assignee: Virginia Tech Intellectual Properties, Inc.
- Current Assignee Address: US VA Blacksburg
- Agency: Thomas | Horstemeyer, LLP
- Agent John S. Sears; Jason M. Perilla
- Main IPC: H02J7/02
- IPC: H02J7/02 ; H02J7/00 ; H02J50/12 ; H02J50/90

Abstract:
In one example, an omnidirectional wireless power transfer system includes high frequency power generator configured to generate a supply of high frequency oscillating power, a number of transmitter-side resonant tank circuits electrically coupled to the high frequency power generator, a receptacle including a number of coils arranged for omnidirectional power transfer to an electronic device placed in the receptacle, and a controller configured to activate individual ones of the transmitter-side resonant tank circuits to wirelessly transmit power to the electronic device through near-field resonant inductive coupling. In one example, the receptacle can be embodied as a bowl, and the controller can activate individual ones of the transmitter-side resonant tank circuits over time to generate an omnidirectional field distribution for wireless power transmission. In other aspects, various transmitter-side and receiver-side tank circuits for coupling independent resonance and ZVS operation are described.
Public/Granted literature
- US20170222483A1 OMNIDIRECTIONAL WIRELESS POWER TRANSFER SYSTEM Public/Granted day:2017-08-03
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