Invention Grant
- Patent Title: Method and system for a complementary metal oxide semiconductor wireless power receiver
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Application No.: US15628447Application Date: 2017-06-20
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Publication No.: US10263475B2Publication Date: 2019-04-16
- Inventor: Meysam Zargham , Glenn Gulak
- Applicant: Meysam Zargham , Glenn Gulak
- Agency: McAndrews, Held & Malloy
- Main IPC: H02J50/12
- IPC: H02J50/12 ; H02J5/00 ; H01F38/14 ; H02J50/70 ; H04B5/00

Abstract:
Methods and systems for a complementary metal oxide semiconductor wireless power receiver may include a receiver chip with an inductor, a configurable capacitance, and a rectifier. The method may include receiving an RF signal utilizing the inductor, extracting a clock signal from the received RF signal, generating a DC voltage utilizing a rectifier circuit, sampling the DC voltage, and adjusting the configurable capacitance based on the sampled DC voltage. The rectifier circuit may include CMOS transistors and T-gate switches for coupling to the inductor. The T-gate switches may be controlled by the generated DC voltage. A signed based gradient-descent algorithm may be utilized to maximize the DC voltage. The DC voltage may be sampled utilizing a comparator powered by the DC voltage, which may adaptively configure the capacitance. The inductor may be shielded utilizing a floating shield. The DC voltage may be increased utilizing a voltage-boosting rectifier.
Public/Granted literature
- US20180131232A1 Method And System For A Complementary Metal Oxide Semiconductor Wireless Power Receiver Public/Granted day:2018-05-10
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