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US Patent 11411441 Systems and methods of protecting wireless power receivers using multiple rectifiers and establishing in-band communications using multiple rectifiers

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Contents

Is a
Patent
Patent

Patent attributes

Patent Applicant
Energous Corporation
Energous Corporation
Current Assignee
Energous Corporation
Energous Corporation
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11411441
Date of Patent
August 9, 2022
Patent Application Number
17026198
Date Filed
September 19, 2020
Patent Citations
‌
US Patent 10038337 Wireless power supply for rescue devices
‌
US Patent 10050462 Social power sharing for mobile devices based on pocket-forming
‌
US Patent 10056782 Methods and systems for maximum power point transfer in receivers
‌
US Patent 10063064 System and method for generating a power receiver identifier in a wireless power network
‌
US Patent 10063105 Proximity transmitters for wireless power charging systems
‌
US Patent 10063106 System and method for a self-system analysis in a wireless power transmission network
‌
US Patent 10068703 Integrated miniature PIFA with artificial magnetic conductor metamaterials
‌
US Patent 10075008 Systems and methods for manually adjusting when receiving electronic devices are scheduled to receive wirelessly delivered power from a wireless power transmitter in a wireless power network
...
Patent Primary Examiner
‌
Rexford N Barnie
CPC Code
‌
H01F 38/14
‌
H04B 1/14
‌
H04B 1/18

A wireless-power receiver includes an antenna coupled to a rectifier, and a depletion-mode switch coupled to the rectifier. The depletion-mode switch can create an impedance mismatch or an impedance match between the rectifier and the antenna. While the depletion-mode switch is in a default-closed state, it creates an impedance mismatch between the rectifier and the antenna. A first amount of alternating current received by the antenna as radio frequency (RF) signals is reflected away from the rectifier's input due to the impedance mismatch. A second amount of the alternating current causes the depletion-mode switch to begin transitioning to an open state, creating an impedance match between the rectifier and the antenna. While the depletion-mode switch is in the open state, creating an impedance match between the rectifier and the antenna, alternating current received by the antenna flows through the rectifier's input to be converted into direct current.

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