Invention Grant
- Patent Title: Wireless power system with a self-regulating wireless power receiver
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Application No.: US14094750Application Date: 2013-12-02
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Publication No.: US09608454B2Publication Date: 2017-03-28
- Inventor: Ganapathy Sankar
- Applicant: WIPQTUS Inc.
- Applicant Address: US CA Cupertino
- Assignee: WIPQTUS INC.
- Current Assignee: WIPQTUS INC.
- Current Assignee Address: US CA Cupertino
- Agency: Lipton, Weinberger & Husick
- Agent Ash Tankha
- Main IPC: H02J3/00
- IPC: H02J3/00 ; H02J5/00 ; H03H7/40 ; H02J7/02 ; H04B5/00 ; H02J7/00

Abstract:
A method and a system for self-regulating wireless power transmitted to a wireless power receiver (WPR) are provided. An auto-tuning network is operably coupled within the WPR. The auto-tuning network includes an impedance network that dynamically increases, decreases, or maintains an amount of the received wirelessly transmitted power by detecting changes in a rectifier load disposed in the WPR and/or in a rectifier output voltage in the WPR. The auto-tuning network self-regulates the wireless power received from a wireless power transmitter (WPT) obviating the need for conventional communication messages. The WPT is hence free from a modulator/demodulator block and an out-of-band communication block and operates over a limited operating range to enable a simpler design for passing electromagnetic compliance regulations. The WPR implements a receiver-maximum-power-signature algorithm for enabling the WPT to detect unsupported receivers, configure its operating point and range, and terminate power transmission when not needed by the WPR.
Public/Granted literature
- US20140152117A1 Wireless Power System With A Self-regulating Wireless Power Receiver Public/Granted day:2014-06-05
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