Power harvesting
First Claim
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1. A power harvesting module comprising:
- at least one electromagnetic (EM) radiation modulator configured to receive and modulate an EM radiation from at least one source, wherein at least a part of the energy of the EM radiation is unused or discarded at the modulator during modulation to provide a modulated EM radiation;
at least one energy harvester configured to at least partially harvest the energy of the EM radiation unused or discarded at the modulator; and
a bias circuit to dynamically vary a bias voltage to control the performance of the power harvesting module.
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Abstract
A power harvesting module comprises at least one electromagnetic (EM) radiation intensity modulator configured to receive a first EM radiation from at least one source and at least one energy converter configured to at least partially convert the energy of the first EM radiation during modulation into electrical energy.
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Citations
33 Claims
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1. A power harvesting module comprising:
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at least one electromagnetic (EM) radiation modulator configured to receive and modulate an EM radiation from at least one source, wherein at least a part of the energy of the EM radiation is unused or discarded at the modulator during modulation to provide a modulated EM radiation; at least one energy harvester configured to at least partially harvest the energy of the EM radiation unused or discarded at the modulator; and a bias circuit to dynamically vary a bias voltage to control the performance of the power harvesting module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system at least partially powered by EM radiation comprising:
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at least one EM radiation source; and at least one power harvesting module, the power harvesting module including at least one EM radiation modulator configured to modulate EM radiation from the at least one EM radiation source, wherein at least a part of the energy of the EM radiation is unused or discarded at the modulator during modulation to provide a modulated EM radiation, and at least one energy harvester configured to at least partially harvest the energy of the EM radiation unused or discarded at the modulator. wherein the energy harvester comprises at least one RF energy converter. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A magnetic resonance imaging system at least partially powered by EM radiation comprising:
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an MRI detector; at least one EM radiation source; and at least one power harvesting module, the power harvesting module including at least one EM radiation modulator configured to modulate EM radiation from the at least one EM radiation source, wherein at least a part of the energy of the EM radiation is unused or discarded at the modulator during modulation to provide a modulated EM radiation, and at least one energy harvester configured to at least partially harvest the energy of the EM radiation unused or discarded at the modulator.
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Specification