Methods and Systems for Maximum Power Point Transfer in Receivers
First Claim
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1. A receiver, comprising:
- a first antenna element for receiving wireless signals comprising energy resulting from constructive interference patterns of radio-frequency (RF) waves;
a first rectifier, operatively coupled to the antenna element for converting the energy received by the first antenna element;
a second antenna element for receiving wireless signals comprising energy resulting from constructive interference patterns of RF waves;
a second rectifier, operatively coupled to the second antenna element for converting the energy received by the second antenna element;
an input boost converter, operatively coupled to the first rectifier, the input boost converter being configured to step up the energy converted by the first rectifier and to determine at least one of (i) a global power maximum and (ii) a local power maximum produced in the first rectifier;
a controller, operatively coupled to the input boost converter and the second rectifier, wherein the controller is configured todetermine available energy at the second rectifier,determine at least one maximum power point (MPP) value from the first rectifier, andtransmit an operational instruction to the first rectifier to further step up the energy converted by the first rectifier
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Abstract
A MPPT management method in a receiver used for wireless power transmission may include the monitoring of the power extracted from RF waves at a dedicated antenna element in the receiver; detecting MPPT at an intelligent input boost converter in the receiver; comparing the detected MPPT with MPPT tables stored or calculated within a main system micro-controller in the receiver; adjusting the MPPT at the intelligent boost converter to find a suitable maximum peak that may enable an optimal power extraction from RF waves.
244 Citations
20 Claims
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1. A receiver, comprising:
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a first antenna element for receiving wireless signals comprising energy resulting from constructive interference patterns of radio-frequency (RF) waves; a first rectifier, operatively coupled to the antenna element for converting the energy received by the first antenna element; a second antenna element for receiving wireless signals comprising energy resulting from constructive interference patterns of RF waves; a second rectifier, operatively coupled to the second antenna element for converting the energy received by the second antenna element; an input boost converter, operatively coupled to the first rectifier, the input boost converter being configured to step up the energy converted by the first rectifier and to determine at least one of (i) a global power maximum and (ii) a local power maximum produced in the first rectifier; a controller, operatively coupled to the input boost converter and the second rectifier, wherein the controller is configured to determine available energy at the second rectifier, determine at least one maximum power point (MPP) value from the first rectifier, and transmit an operational instruction to the first rectifier to further step up the energy converted by the first rectifier - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating a receiver, comprising:
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receiving, in a first antenna element, wireless signals comprising energy resulting from constructive interference patterns of radio-frequency (RF) waves; converting the energy received by the first antenna element in a first rectifier; receiving, in a second antenna element, wireless signals comprising energy resulting from constructive interference patterns of RF waves; converting the energy received by the second antenna element in a second rectifier; stepping up the energy converted by the first rectifier via an input boost converter and determining in the input boost converter at least one of (i) a global power maximum and (ii) a local power maximum produced in the first rectifier; determining available energy at the second rectifier via a controller, determining at least one maximum power point (MPP) value from the first rectifier via the controller, and transmitting an operational instruction from the controller to the first rectifier to further step up the energy converted by the first rectifier - View Dependent Claims (11, 12, 13, 14)
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15. A receiver comprising a plurality of antenna elements for receiving wireless signals comprising energy resulting from constructive interference patterns of radio-frequency (RF) waves, and a respective plurality of rectifiers configured to convert the energy received by each of the antenna elements, the receiver comprising:
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an input boost converter, operatively coupled to a first of the plurality of rectifiers, the input boost converter being configured to step up the energy converted by the first rectifier and to determine at least one of (i) a global power maximum and (ii) a local power maximum produced in the first rectifier; a controller, operatively coupled to the input boost converter and a second of the plurality of rectifiers, wherein the controller is configured to determine available energy at the second rectifier, determine at least one maximum power point (MPP) value from the first rectifier, and transmit an operational instruction to the first rectifier to further step up the energy converted by the first rectifier - View Dependent Claims (16, 17, 18, 19, 20)
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Specification