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EFFICIENT WIRELESS POWER RECEIVER

EFFICIENT WIRELESS POWER RECEIVER

FIELD

The present disclosure describes technology related to the field of receiver design in a system for wireless power transmission, especially technology for optimizing the efficiency and operation of such a receiver over all phases of its operation.

BACKGROUND

Wireless power delivery systems, in which a transmitter sends electromagnetic power in the form of a beam, from the transmitter to a remote electronic device, are well known in the art. The remote electronic device can comprise a receiver for receiving and controlling the power received, and an apparatus for using or storing the power received. Such systems are described in Patent Publications and patents WO 2007/036937 for “Directional Light Transmitter and Receiver”, WO 2009/083990 for “Wireless Laser Power Transmitter”, WO 2012/172541 for “Spatially Distributed Laser Resonator”, WO 2017/009854 for “A System for Optical Wireless Power Supply”, WO2017/033192 for “Wireless Power Distribution System”, WO 2017/158605 for “System for Optical Wireless Power Supply” , WO 2017/179051 for “System for Optical Wireless Power Supply”, WO/2019/135226 for “Multiple Beam Wireless Power Transmission System”, and US 11,444,491 for “Wireless Power Transmission System”, all commonly owned by the present applicant. These systems consist of a transmitter generating a power beam, generally a laser beam, and receivers converting the beams into usable electrical power for use by client devices or for storage for such use, or for another electronic circuit which is not part of the receiver

CLAIMS We claim: 1. A receiver for converting an optical power beam into electrical power for use by an electronic system, the receiver comprising: a power converting element adapted to convert the optical beam power into an electrical current at a first voltage; a signal emitter adapted to transmit information regarding the operation of the receiver, back to a system transmitting the optical power beam; and a voltage converting circuit adapted to convert the electrical current having the first voltage into a current having a second voltage higher than the first voltage, the voltage converting circuit comprising at least one inductor and at least one switch, the at least one switch being continuously switched between Open and Closed positions by a signal from at least one of a first electronic switching module and a second electronic switching module, the electronic switching modules being characterized in that: the first electronic switching module is adapted to switch the at least one switch in a first mode, at a rate and duty cycle provided by a signal generating circuit, the first electronic switching module being powered by the electric power output of the power converting element; the second electronic switching module is adapted to switch the at least one switch in a second mode at either or both of a variable rate and a variable duty cycle provided by at least one controller according at least to the requirements of the receiver, the second electronic switching module being powered by the electric power output of the voltage converting circuit, and the second electronic switching module is adapted to begin operation only when the voltage of the current output from the voltage converting circuit exceeds a predetermined threshold; and

EFFICIENT WIRELESS POWER RECEIVER

FIELD

The present disclosure describes technology related to the field of receiver design in a system for wireless power transmission, especially technology for optimizing the efficiency and operation of such a receiver over all phases of its operation.

BACKGROUND

Wireless power delivery systems, in which a transmitter sends electromagnetic power in the form of a beam, from the transmitter to a remote electronic device, are well known in the art. The remote electronic device can comprise a receiver for receiving and controlling the power received, and an apparatus for using or storing the power received. Such systems are described in Patent Publications and patents WO 2007/036937 for “Directional Light Transmitter and Receiver”, WO 2009/083990 for “Wireless Laser Power Transmitter”, WO 2012/172541 for “Spatially Distributed Laser Resonator”, WO 2017/009854 for “A System for Optical Wireless Power Supply”, WO2017/033192 for “Wireless Power Distribution System”, WO 2017/158605 for “System for Optical Wireless Power Supply” , WO 2017/179051 for “System for Optical Wireless Power Supply”, WO/2019/135226 for “Multiple Beam Wireless Power Transmission System”, and US 11,444,491 for “Wireless Power Transmission System”, all commonly owned by the present applicant. These systems consist of a transmitter generating a power beam, generally a laser beam, and receivers converting the beams into usable electrical power for use by client devices or for storage for such use, or for another electronic circuit which is not part of the receiver

CLAIMS We claim: 1. A receiver for converting an optical power beam into electrical power for use by an electronic system, the receiver comprising: a power converting element adapted to convert the optical beam power into an electrical current at a first voltage; a signal emitter adapted to transmit information regarding the operation of the receiver, back to a system transmitting the optical power beam; and a voltage converting circuit adapted to convert the electrical current having the first voltage into a current having a second voltage higher than the first voltage, the voltage converting circuit comprising at least one inductor and at least one switch, the at least one switch being continuously switched between Open and Closed positions by a signal from at least one of a first electronic switching module and a second electronic switching module, the electronic switching modules being characterized in that: the first electronic switching module is adapted to switch the at least one switch in a first mode, at a rate and duty cycle provided by a signal generating circuit, the first electronic switching module being powered by the electric power output of the power converting element; the second electronic switching module is adapted to switch the at least one switch in a second mode at either or both of a variable rate and a variable duty cycle provided by at least one controller according at least to the requirements of the receiver, the second electronic switching module being powered by the electric power output of the voltage converting circuit, and the second electronic switching module is adapted to begin operation only when the voltage of the current output from the voltage converting circuit exceeds a predetermined threshold; and
Application Number5432112345
Patent Number85785
ApplicantSanaullah
Current StatusGranted
CountryIndia
IndustryMedia and Entertainment
Patent TypeSingle Patent
Available ForLicense

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India Granted 5432112345 Sanaullah 85785 EFFICIENT WIRELESS POWER RECEIVER Click to open