Invention Grant
- Patent Title: Reducing the impact of an inductive energy transfer system on a touch sensing device
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Application No.: US14502042Application Date: 2014-09-30
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Publication No.: US10027185B2Publication Date: 2018-07-17
- Inventor: Todd K. Moyer , Albert Lin , Wesley W. Zuber , Yehonatan Perez , Jeffrey M. Alves , Makiko K. Brzezinski , Eric S. Jol , Paul J. Thompson , Priyank D. Patel , Christian M. Sauer , Christopher S. Graham , Jim C. Hwang , Micah Lewis-Kraus
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Brownstein Hyatt Farber Schreck, LLP
- Main IPC: H02J50/70
- IPC: H02J50/70 ; H04B15/02 ; H02J7/02 ; H02J50/90 ; H02J5/00 ; H02J50/12

Abstract:
A transmitter device for an inductive energy transfer system can include a DC-to-AC converter operably connected to a transmitter coil, a first capacitor connected between the transmitter coil and one output terminal of the DC-to-AC converter, and a second capacitor connected between the transmitter coil and another output terminal of the DC-to-AC converter. One or more capacitive shields can be positioned between the transmitter coil and an interface surface of the transmitter device. A receiver device can include a touch sensing device, an AC-to-DC converter operably connected to a receiver coil, a first capacitor connected between the receiver coil and one output terminal of the AC-to-DC converter, and a second capacitor connected between the receiver coil and another output terminal of the AC-to-DC converter. One or more capacitive shields can be positioned between the receiver coil and an interface surface of the receiver device.
Public/Granted literature
- US20150349539A1 Reducing the Impact of an Inductive Energy Transfer System on a Touch Sensing Device Public/Granted day:2015-12-03
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