Invention Grant
- Patent Title: Multi-mode wireless charging system
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Application No.: US16670999Application Date: 2019-10-31
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Publication No.: US11081909B2Publication Date: 2021-08-03
- Inventor: William B. Wright , Ron-Chi Kuo
- Applicant: PowerSphyr Inc.
- Applicant Address: US CA Danville
- Assignee: PowerSphyr Inc.
- Current Assignee: PowerSphyr Inc.
- Current Assignee Address: US CA Danville
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H02J50/80
- IPC: H02J50/80 ; H02J3/02 ; H02J50/40 ; H02J50/12

Abstract:
A power transfer system for providing charging power to a power receiver is disclosed. The system comprises a hardware controller circuit, a first filter circuit, and a second filter circuit. The hardware controller circuit is configured to determine a first frequency for providing power from a first power transmitter to the power receiver via a first wireless field. The first filter circuit is operationally coupled to the hardware controller circuit and has a first frequency bandpass configured to pass a first driver signal for generating the first wireless field at the first frequency. The second filter circuit is operationally coupled to the hardware controller circuit and has a second frequency bandpass configured to pass a second driver signal for generating a second wireless field at a second frequency that is different from the first frequency.
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