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3976 results about "Energy transfer" patented technology
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In the physical sciences, an energy transfer or 'energy exchange' from one system to another is said to occur when an amount of energy crosses the boundary between them, thus increasing the energy content of one system while decreasing the energy content of the other system by the same amount. The transfer is characterised by the quantity of energy transferred, which can be specified in energy units such as the joule, in combination with the direction of the transfer, which can be specified as in or out of one system or the other. The transfer occurs in a process which changes the state of each system. Thermodynamics recognises three categories of such transfers: Heat[ing], which can occur via conduction, thermal electromagnetic radiation, and other mechanisms Work, for example, electric power transmission is a thermodynamic work process that can transfer energy from a power generation station to your home, where a pump can use it to perform mechanical work on water to lift it out of your basement. Mass transfer, processes in which material moves from one system to the other, carrying its energy with it
Method and apparatus for wireless power transmission
ActiveUS20080067874A1Sufficient powerSimple and low-cost receivingBatteries circuit arrangementsTransformersElectric power transmissionTransmitted power
Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies. Embodiments of the invention also pertain to planar inductors having characteristics that allow the production of even magnetic field, as well as systems that incorporate such planar inductors.
Owner:QUALCOMM INC
Nucleic acid amplification oligonucleotides with molecular energy transfer labels and methods based thereon
InactiveUS6117635AReduce the possibilityRapid and sensitive and reliableSugar derivativesMicrobiological testing/measurementEnergy transferFluorophore
The present invention provides labeled nucleic acid amplification oligonucleotides, which can be linear or hairpin primers or blocking oligonucleotides. The oligonucleotides of the invention are labeled with donor and / or acceptor moieties of molecular energy transfer pairs. The moieties can be fluorophores, such that fluorescent energy emitted by the donor is absorbed by the acceptor. The acceptor may be a fluorophore that fluoresces at a wavelength different from the donor moiety, or it may be a quencher. The oligonucleotides of the invention are configured so that a donor moiety and an acceptor moiety are incorporated into the amplification product. The invention also provides methods and kits for directly detecting amplification products employing the nucleic acid amplification primers. When labeled linear primers are used, treatment with exonuclease or by using specific temperature eliminates the need for separation of unincorporated primers. This "closed-tube" format greatly reduces the possibility of carryover contamination with amplification products, provides for high throughput of samples, and may be totally automated.
Owner:MILLIPORE CORP
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Planar resonator for wireless power transfer
InactiveUS6960968B2Easy to useEasy wiringMultiple-port networksBatteries circuit arrangementsElectrical conductorTransformer
A planar resonator and method of manufacture provides contactless power transfer using at least two electrically isolated axis aligned conductive across the transfer interface in a coupled inductor or transformer configuration. Signal or power transfer is then accomplished by coupling of magnetic flux. The coupling of electric flux is also accomplished across a same interface and driven with the same conductive spiral-wound conductors. An interface of energy transfer(IOET) has a first spiral-shaped conductor arranged on the top surface of said IOET; a second spiral-shaped conductor arranged on the bottom surface of said IOET, has a vertical axis aligned with the first spiral-shaped conductor. The IOET and the first and second spiral-shaped conductors have a predetermined self-resonant frequency. The planar power resonator stores electric energy in the IOET, and at predetermined frequencies, the arrangement of the first and second spiral-shaped conductors and the IOET permits transfers of magnetic flux and electrical energy between the first and second spirals across the IOET. The resonator facilitates contactless battery charging in devices such as cellphones and wearable electronics where the resonator can be woven into fabric or attached to a person's clothes.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Spatially decoupled twin secondary coils for optimizing transcutaneous energy transfer (TET) power transfer characteristics
ActiveUS7191007B2Raise transfer toImplantation is simpleElectrotherapyConversion without intermediate conversion to dcEnergy transferImplanted device
An implantable device, such as an infuser device for bidirectional hydraulically controlling a medical artificial sphincter, enhances power transfer characteristics to a secondary coil thereby allowing implantation to greater physical depths and / or enclosing the secondary coil within a housing of the infuser device. The enhanced power transfer is achieved with multiple coils that are longitudinally aligned and physical and electrical parallel to form the secondary loop of a transcutaneous energy transfer system (TET) instead of a single coil. It better optimizes the power transfer from a parallel tuned tank circuit primary coil to an implanted secondary series tuned tank circuit coil.
Owner:ETHICON ENDO SURGERY INC
Wireless energy transfer systems
ActiveUS20100141042A1Efficient deliveryEfficient energy transferMultiple-port networksNear-field transmissionEnergy transferCondensed matter physics
Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.
Owner:WITRICITY CORP
Wireless energy transfer for photovoltaic panels
ActiveUS20120098350A1Reduce cost and complexityMitigate factor drivingMultiple-port networksNear-field transmissionElectric power transmissionEnergy transfer
Described herein are improved configurations for a wireless power transfer involving photovoltaic panels. Described are methods and designs that use electric energy from a photovoltaic module to energize at least one wireless energy source to produce an oscillating magnetic field for wireless energy transfer. The source may be configured and tuned to present an impedance to a photovoltaic module wherein said impedance enables substantial extraction of energy from said photovoltaic module.
Owner:WITRICITY CORP
Methods of analyzing polymers using a spatial network of fluorophores and fluorescence resonance energy transfer
InactiveUS6263286B1Easy to analyze and useMicrobiological testing/measurementLaboratory glasswaresEnergy transferResonance
The present invention relates to methods and apparatuses for analyzing molecules, particularly polymers, and molecular complexes with extended or rod-like conformations. In particular, the methods and apparatuses are used to identify repetitive information in molecules or molecular ensembles, which is interpreted using an autocorrelation function in order to determine structural information about the molecules. The methods and apparatuses of the invention are used for, inter alia, determining the sequence of a nucleic acid, determining the degree of identity of two polymers, determining the spatial separation of specific sites within a polymer, determining the length of a polymer, and determining the velocity with which a molecule penetrates a biological membrane.
Owner:U S GENOMICS INC
Wireless energy transfer systems
ActiveUS20100109445A1Efficient deliveryEfficient energy transferMultiple-port networksNear-field transmissionEnergy transferCondensed matter physics
Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.
Owner:WITRICITY CORP
Tunable wireless energy transfer for in-vehicle applications
ActiveUS20120112532A1Efficient deliveryEfficient energy transferMultiple-port networksCharging stationsEnergy transferIn vehicle
A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes a load associated with an electrically powered system that is disposed interior to a vehicle, and a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator; and wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load.
Owner:WITRICITY CORP
Multi-resonator wireless energy transfer to mobile devices
InactiveUS20120248886A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferEngineering
A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply and a second electromagnetic resonator coupled to at least one of a power supply and the first electromagnetic resonator. The mobile wireless receiver includes a load associated with a mobile device such that the load delivers electrical energy to the mobile device, and a third electromagnetic resonator configured to be coupled to the load and movable relative to at least one of the first electromagnetic resonator and the second electromagnetic resonator, wherein the third resonator is configured to be wirelessly coupled to at least one of the first electromagnetic resonator and the second electromagnetic resonator to provide resonant, non-radiative wireless power to the third electromagnetic resonator from at least one of the first electromagnetic resonator and the second electromagnetic resonator.
Owner:WITRICITY CORP
Managing an energy transfer between a vehicle and an energy transfer system
InactiveUS20110302078A1Easy to chargeEfficient chargingLevel controlVolume/mass flow measurementEnergy transferEngineering
Owner:FAILING BRYAN MARC
Wireless energy transfer with variable size resonators for medical applications
ActiveUS20120235634A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferInductor
A medical device-powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver includes a load configured to power an implantable medical device using electrical power, and a second electromagnetic resonator adapted to be housed within the medical device and configured to be coupled to the load, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, the area circumscribed by the inductive element of at least one of the electromagnetic resonators can be varied to improve performance.
Owner:WITRICITY CORP
Wireless energy transfer using field shaping to reduce loss
ActiveUS20110043047A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferCondensed matter physics
In embodiments of the present invention improved capabilities are described for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator, where the source resonator and the second resonator are coupled to provide near-field wireless energy transfer among the source resonator and the second resonator and where the field of at least one of the source resonator and the second resonator is shaped to avoid a loss-inducing object.
Owner:WITRICITY CORP
Wireless non-radiative energy transfer
ActiveUS20090195333A1Near-field transmissionElectromagnetic wave systemEnergy transferSoftware engineering
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Long persistent phosphors and persistent energy transfer technique
The invention provides long-persistent phosphors, methods for their manufacture and phosphorescent articles. The invention also provides a method for generating a long-persistent phosphorescence at a selected color. The phosphors of the invention may be alkaline earth aluminates, alkaline earth silicates, and alkaline earth aluminosilicates. The phosphors include those activated by cerium. The phosphors also include those in which persistent energy transfer occurs from a donor ion to an acceptor ion, producing persistent emission largely characteristic of the acceptor ion.
Owner:UNIV OF GEORGIA RES FOUND INC +1
Wireless energy transfer and continuous radio station signal coexistence
ActiveUS20120153894A1Avoid interferenceLower emission levelsNear-field transmissionBatteries circuit arrangementsEnergy transferTransmitted power
This disclosure provides systems, methods and apparatus for wirelessly transmitting power while avoiding interference with wireless communication devices. In one aspect a wireless power transmitter apparatus is provided. The wireless power transmitter apparatus includes a transmit circuit configured to wirelessly transmit power at a transmit frequency to a first receiver device. The wireless power transmitter apparatus further includes a controller circuit configured to reduce a level of emission of the transmit circuit at a determined frequency during a period of time based on information about an information signal transmitted to a second receiver device substantially at the determined frequency to be received within the period of time.
Owner:WITRICITY CORP
Tunable wireless power architectures
ActiveUS20130033118A1Tune performanceCharging stationsElectromagnetic wave systemEnergy transferPower Architecture
Described herein are improved configurations for a wireless power transfer. The parameters of components of the wireless energy transfer system are adjusted to control the power delivered to the load at the device. The power output of the source amplifier is controlled to maintain a substantially 50% duty cycle at the rectifier of the device.
Owner:WITRICITY CORP
Wireless energy transfer with resonator arrays for medical applications
InactiveUS20120248888A1Efficient deliveryEfficient energy transferMultiple-port networksCircuit monitoring/indicationEnergy transferEngineering
A medical device-powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes, a load configured to power an implantable medical device using electrical power, and a second electromagnetic resonator adapted to be housed within the medical device and configured to be coupled to the load, at least one other electromagnetic resonator configured with the first electromagnetic resonator and the second electromagnetic resonator in an array of electromagnetic resonators to distribute power over an area, and wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator.
Owner:WITRICITY CORP
Wireless non-radiative energy transfer
The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure has a second Q-factor. The distance between the two resonators can be larger than the characteristic size of each resonator. Non-radiative energy transfer between the first resonator structure and the second resonator structure is mediated through coupling of their resonant-field evanescent tails.
Owner:MASSACHUSETTS INST OF TECH
Wireless Energy Transfer System
InactiveUS20110156494A1Increase positive chargeHigh energyElectromagnetic wave systemTransformersEnergy transferTransmitted power
A system for transmitting power without wires or with no more than one connection, wherein communication is provided between an unlimited number of electronic devices, or to connect these devices to an unlimited number networks that are located externally to the system to thereby enable high speed voice and data communications over a single resonant connection At least one transmitter and one receiver are utilized, which may have the same or different configurations, such that an induced oscillating electπc current, which occurs at the resonant frequency of a transmitter, induces a standing wave The standing wave is tuned and “tapped” by a receiver having a coil or set of plates and receivers that are tuned to oscillate at the same frequency or one of its harmonics and, thus, absorb an electrical current and / or signals at the receiver
Owner:GOVERNING DYNAMICS LLC
Medical implant having closed loop transcutaneous energy transfer (TET) power transfer regulation circuitry
InactiveUS20050288739A1Not easy to damageLess susceptible to inoperabilityElectrotherapyAnti-incontinence devicesElectrical batteryClosed loop
An implantable medical device, such as a bi-directional infuser device for hydraulically controlling an artificial sphincter (e.g., adjustable gastric band) benefits from being remotely powered by transcutaneous energy transfer (TET), obviating the need for batteries. In order for active components in the medical device to operate, a sinusoidal power signal received by a secondary coil is rectified and filtered. An amount of power transferred is modulated. In one version, a voltage comparison is made of a resulting power supply voltage as referenced to a threshold to control pulse width modulation (PWM) of the received sinusoidal power signal, achieving voltage regulation. Versions incorporate detuning or uncoupling of the secondary coil to achieve PWM control without causing excessive heating of the medical device.
Owner:ETHICON ENDO SURGERY INC
Wireless energy transfer for vehicles
InactiveUS20120119698A1Efficient deliveryEfficient energy transferCircuit authenticationMultiple-port networksEnergy transferEngineering
A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver includes a load configured to power the drive system of a vehicle using electrical power, and a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, wherein at least one of the first electromagnetic resonator and the second electromagnetic resonator is variable in size, and wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator.
Owner:WITRICITY CORP
Low frequency transcutaneous energy transfer to implanted medical device
InactiveUS7599743B2Efficiently penetrate physical boundaryMore powerElectrotherapyAnti-incontinence devicesEnergy transferComputer module
An implantable medical device system advantageously utilizes low frequency (e.g., about 1-100 kHz) transcutaneous energy transfer (TET) for supplying power from an external control module to an implantable medical device, avoiding power dissipation through eddy currents in a metallic case of an implant and / or in human tissue, thereby enabling smaller implants using a metallic case such as titanium and / or allowing TET signals of greater strength thereby allowing placement more deeply within a patient without excessive power transfer inefficiencies.
Owner:ETHICON ENDO SURGERY INC
Wireless energy transfer for packaging
ActiveUS20130099587A1Optimal energy extractionEfficiently transferring energyTransformersPhotovoltaicsEnergy transferEngineering
A packaged product includes a product, a product packaging at least partially covering the product, a device resonator integrated with the product packaging for receiving wireless energy from a source resonator and an electrical component coupled to the device resonator to receive the wireless energy from the device resonator.
Owner:WITRICITY CORP
Tunable wireless energy transfer for medical applications
InactiveUS20120256494A1Efficient deliveryEfficient energy transferMultiple-port networksElectromagnetic wave systemEnergy transferMedical device
A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes a load associated with powering an electrically powered medical device, and a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, and wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load.
Owner:WITRICITY CORP
External power source for an implantable medical device having an adjustable carrier frequency and system and method related therefore
ActiveUS8140168B2Best possible efficiencyImprove energy transfer efficiencyElectrotherapyEnergy transferMedical device
Owner:MEDTRONIC INC
Wireless energy transfer for medical applications
Described herein are improved configurations for a wireless power transfer. Described are methods and designs for medical environments and devices. Wireless energy transfer is utilized to eliminate cords and power cables from operating instruments and electronic equipment requiring mobility.
Owner:WITRICITY CORP
Wireless energy transfer for implantable devices
ActiveUS20120032522A1Improves range tolerable offsetMultiple-port networksNear-field transmissionEnergy transferPower cable
Described herein are improved configurations for a wireless power transfer. Described are methods and designs for implantable electronics and devices. Wireless energy transfer is utilized to eliminate cords and power cables puncturing the skin to power an implantable device. Repeater resonators are employed to improve the power transfer characteristics between the source and the device resonators.
Owner:WITRICITY CORP
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