Wireless energy transfer for implantable devices

Wireless energy transfer apparatus include, in at least one aspect, a device resonator configured to supply power for a load by receiving wirelessly transferred power from a source resonator; a temperature sensor positioned to measure a temperature of a component of the apparatus; a tunable componen...

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Bibliographische Detailangaben
Hauptverfasser:	Soljacic, Marin, Campanella, Andrew J, Karalis, Aristeidis, Kurs, Andre B, Schatz, David A, Hall, Katherine L, Kesler, Morris P
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROTHERAPY GENERATION HUMAN NECESSITIES HYGIENE IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS INDUCTANCES MAGNETOTHERAPY MAGNETS MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY RESONATORS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SYSTEMS FOR STORING ELECTRIC ENERGY TRANSFORMERS TRANSMISSION ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	Wireless energy transfer apparatus include, in at least one aspect, a device resonator configured to supply power for a load by receiving wirelessly transferred power from a source resonator; a temperature sensor positioned to measure a temperature of a component of the apparatus; a tunable component coupled to the device resonator to adjust a resonant frequency of the device resonator, an effective impedance the device resonator, or both; and control circuitry configured to, in response to detecting a temperature condition using the temperature sensor, (i) tune the tunable component to adjust the resonant frequency of the device resonator, the effective impedance of the device resonator, or both, and (ii) signal the source resonator regarding the temperature condition to cause an adjustment of a resonant frequency of the source resonator, a power output of the source resonator, or both.