WITRICITY CORPORATION Patent applications |
Patent application number | Title | Published |
20150123484 | WIRELESS ENERGY TRANSFER SYSTEMS - A wireless power supply includes a source magnetic resonator, connected to a power source and configured to exchange power wirelessly via a wireless power transfer signal with at least one device magnetic resonator integrated into at least one peripheral component of a computer and a processor configured to adjust the operating point of the wireless power supply wherein power is transferred non-radiatively from the wireless power supply to the at least one device magnetic resonator and wherein the power supply forms a part of the computer. | 05-07-2015 |
20140265555 | SERIES RELAYED WIRELESS POWER TRANSFER IN A VEHICLE - Described herein are improved capabilities for a system and method for wireless energy distribution across a vehicle compartment of defined area, comprising a source resonator coupled to an energy source of a vehicle and generating an oscillating magnetic field with a frequency, and at least one repeater resonator positioned along the vehicle compartment, the at least one repeater resonator positioned in proximity to the source resonator, the at least one repeater resonator having a resonant frequency and comprising a high-conductivity material adapted and located between the at least one repeater resonator and a vehicle surface to direct the oscillating magnetic field away from the vehicle surface, wherein the at least one repeater resonator provides an effective wireless energy transfer area within the defined area. | 09-18-2014 |
20140181782 | WIRELESS ENERGY TRANSFER MODELING TOOL - A method includes defining and storing one or more attributes of a source resonator and a device resonator forming a system, defining and storing the interaction between the source resonator and the device resonator, modeling the electromagnetic performance of the system to derive one or more modeled values and utilizing the derived one or more modeled values to design an impedance matching network. | 06-26-2014 |
20140175892 | RESONATOR ENCLOSURE - Described herein are improved configurations for a wireless power transfer and mechanical enclosures. The described structure holds and secures the components of a resonator while providing adequate structural integrity, thermal control, and protection against environmental elements. The coil enclosure structure comprises a flat, planar material with a recess for an electrical conductor wrapped around blocks of magnetic material as well as an additional planar material to act as a cover for the recess. | 06-26-2014 |
20140084859 | Vehicle Charger Safety System and Method - Wireless vehicle charger safety systems and methods use a detection subsystem, a notification subsystem and a management subsystem. The detection subsystem identifies a safety condition. The notification subsystem provides an indication of the safety condition. The management subsystem addresses the safety condition. In particular, undesirable thermal conditions caused by foreign objects between a source resonator and a vehicle resonator are addressed by sensing high temperatures, providing a warning and powering down a vehicle charger, as appropriate for the environment in which the charger is deployed. | 03-27-2014 |
20140044281 | WIRELESSLY POWERED AUDIO DEVICES - Techniques herein provide wireless energy transfer to audio devices such as headphones, headsets, hearing aids, and the like. Audio devices are integrated with a device resonator. The device resonator may be positioned and oriented to reduce interaction with lossy or sensitive components of the audio device. A repeater resonator and/or a source resonator is integrated into a headrest of a seat or a chair providing continuous power to the headphones while in use. The audio devices may be recharged wirelessly when positioned near source resonators that may be embedded in pads, tables, carrying cases, cups, and the like. | 02-13-2014 |
20140035704 | RESONATOR FINE TUNING - A tunable resonator assembly includes a resonator coil having an inductance, and a tile residing at a position relative to the resonator coil the position selected to produce a desired change in the inductance of the resonator coil. | 02-06-2014 |
20140035378 | PREVENTION OF INTERFERENCE BETWEEN WIRELESS POWER TRANSMISSION SYSTEMS AND TOUCH SURFACES - A system for managing impacting effects in an electronic system due to the presence of wireless energy transfer oscillating electromagnetic fields includes a controller, a field sensing component communicatively coupled to the controller and configured to measure at least one oscillating energy field and an adjustable filter element communicatively coupled to the controller, wherein the adjustable filter may be adjusted by the controller based, at least in part, on measurements of the field sensing component to reduce effects of the at least one oscillating energy field on the sensing component. | 02-06-2014 |
20140021798 | WIRELESS ENERGY TRANSFER WITH REPEATER RESONATORS - Described herein are systems for wireless energy transfer distribution over a defined area. Energy may be distributed over the area via a plurality of repeater, source, and device resonators. The resonators within the area may be tunable and the distribution of energy or magnetic fields within the area may be configured depending on device position and power needs. | 01-23-2014 |
20140002012 | WIRELESS ENERGY TRANSFER FOR RECHARGEABLE BATTERIES | 01-02-2014 |
20130334892 | WIRELESS ENERGY TRANSFER CONVERTERS - Described herein are improved configurations for a wireless power converter that includes at least one receiving magnetic resonator configured to capture electrical energy received wirelessly through a first oscillating magnetic field characterized by a first plurality of parameters, and at least one transferring magnetic resonator configured to generate a second oscillating magnetic field characterized by a second plurality of parameters different from the first plurality of parameters, wherein the electrical energy from the at least one receiving magnetic resonator is used to energize the at least one transferring magnetic resonator to generate the second oscillating magnetic field. | 12-19-2013 |
20130221744 | MECHANICALLY REMOVABLE WIRELESS POWER VEHICLE SEAT ASSEMBLY - Described herein are improved capabilities for a system and method for wireless energy distribution to a mechanically removable vehicle seat, comprising a source resonator coupled to an energy source of a vehicle, the source resonator positioned proximate to the mechanically removable vehicle seat, the source resonator generating an oscillating magnetic field with a resonant frequency and comprising a high-conductivity material adapted and located between the source resonator and a vehicle surface to direct the oscillating magnetic field away from the vehicle surface, and a receiving resonator integrated into the mechanically removable vehicle seat, the receiving resonator having a resonant frequency similar to that of the source resonator, and receiving wireless energy from the source resonator, and providing power to electrical components integrated with the mechanically removable vehicle seat. | 08-29-2013 |
20130200721 | WIRELESS ENERGY TRANSFER WITH REDUCED FIELDS - A magnetic resonator includes an inductor comprising a conductive first loop having a first dipole moment and a conductive second loop having a second dipole moment wherein a direction of the first dipole moment is substantially opposite to a direction of the second dipole moment and at least one capacitor in series with at least one of the first loop and the second loop. | 08-08-2013 |
20130175875 | WIRELESS ENERGY TRANSFER SYSTEMS - A wireless power transfer system for computer peripherals, includes a source magnetic resonator, integrated into a source station and connected to a power source and power and control circuitry, and a device magnetic resonator, integrated into a computer peripheral wherein power is transferred non-radiatively from the source magnetic resonator to the device magnetic resonator, and wherein the source magnetic resonator is configured to transfer power during predefined intervals. | 07-11-2013 |
20130175874 | WIRELESS ENERGY TRANSFER FOR PROMOTIONAL ITEMS - A wireless energy transfer system includes a source with at least one repeater resonator to extend the active area of the source. The repeater resonator coils and the source resonator coils are positioned with overlap of adjacent resonator coils of the source to reduce or eliminate dead spots within the active area. | 07-11-2013 |
20130159956 | WIRELESS ENERGY TRANSFER MODELING TOOL - A method includes defining and storing one or more attributes of a source resonator and a device resonator forming a system, defining and storing the interaction between the source resonator and the device resonator, modeling the electromagnetic performance of the system to derive one or more modeled values and utilizing the derived one or more modeled values to design an impedance matching network. | 06-20-2013 |
20130154389 | WIRELESS ENERGY TRANSFER SYSTEMS - A wireless power supply includes a source magnetic resonator, connected to a power source and configured to exchange power wirelessly via a wireless power transfer signal with at least one device magnetic resonator integrated into at least one peripheral component of a computer and a processor configured to adjust the operating point of the wireless power supply wherein power is transferred non-radiatively from the wireless power supply to the at least one device magnetic resonator and wherein the power supply forms a part of the computer. | 06-20-2013 |
20130099587 | WIRELESS ENERGY TRANSFER FOR PACKAGING - 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. | 04-25-2013 |
20130069753 | HIGH FREQUENCY PCB COILS - Described herein designs for high frequency printed circuit board (PCB) resonator coils. The resonator coils are printed or etched on a thin substrate. The number of loops of the resonator coil, the width of each trace, the spacing between the traces, and the like are adjusted to increase the quality factor Q of the resonator coils. | 03-21-2013 |
20130069441 | FOREIGN OBJECT DETECTION IN WIRELESS ENERGY TRANSFER SYSTEMS - A wireless energy transfer system includes a foreign object debris detection system. The system includes at least one wireless energy transfer source configured to generate an oscillating magnetic field. The foreign object debris may be detected by at least one field gradiometer positioned in the oscillating magnetic field. The voltage of the at least one field gradiometer may be measured using readout circuitry and a feedback loop based on the readings from the gradiometers may be used to control the parameters of the wireless energy source. | 03-21-2013 |
20130062966 | RECONFIGURABLE CONTROL ARCHITECTURES AND ALGORITHMS FOR ELECTRIC VEHICLE WIRELESS ENERGY TRANSFER SYSTEMS - A control architecture for electric vehicle wireless power transmission systems that may be segmented so that certain essential and/or standardized control circuits, programs, algorithms, and the like, are permanent to the system and so that other non-essential and/or augmentable control circuits, programs, algorithms, and the like, may be reconfigurable and/or customizable by a user of the system. The control architecture may be distributed to various components of the wireless power system so that a combination of local or low-level controls operating at relatively high-speed can protect critical functionality of the system while higher-level and relatively lower speed control loops can be used to control other local and system-wide functionality. | 03-14-2013 |
20130057364 | RESONATOR ENCLOSURE - An enclosed resonator includes a generally planar plate having a top side and a bottom side wherein a pocket is recessed into the bottom side to produce a bottom surface and a periphery around the rectangular pocket including a first pair of parallel sides and a second pair of parallel sides, a plurality of generally parallel channels formed into the top side each channel extending generally in a direction of the second pair of parallel sides, a first plurality of holes extending along a first side of the first pair of parallel sides each hole extending from the bottom side to one of the plurality of generally parallel channels, a second plurality of holes extending along a second side of the first pair of parallel sides each hole extending from the bottom side to one of the plurality of generally parallel channels. | 03-07-2013 |
20130038402 | WIRELESS POWER COMPONENT SELECTION - A method includes providing a source resonator including a first conductive loop in parallel with a first capacitive element and in series with a first adjustable element the source resonator having a source target impedance, providing a plurality of device resonators each including a conductive loop and having a device target impedance, connecting, for each of the plurality of device resonators, a resistor corresponding to the device target impedance in series with the conductive loop of each of the plurality of device resonators, connecting a network analyzer in series with the first conductive loop and adjusting at least one of the first capacitive element and the first adjustable element until a measured impedance of the source resonator is within a predetermined range of the source target impedance. | 02-14-2013 |
20130033118 | TUNABLE WIRELESS POWER ARCHITECTURES - 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. | 02-07-2013 |
20130020878 | WIRELESS POWER COMPONENT SELECTION - Described herein are improved configurations for a wireless power transfer. The parameters of components of resonators in a system are calculated and adjusted. Some adjustments are performed using a temporary matching resistor chosen to simulate the loading of at least one additional resonator. | 01-24-2013 |
20130007949 | WIRELESS ENERGY TRANSFER FOR PERSON WORN PERIPHERALS - Described is a system for wireless energy transfer for person worn peripherals. The system makes use of a technique referred to as strongly-coupled magnetic resonance to transfer energy across a distance without wires and enables efficient transfer of energy over distances of 10 to 18 cm or more. The system comprises a resonant power source, which could be embedded in a person's equipment vest or backpack receiving power from a central battery pack or micro fuel cell, and a resonant power capture unit which could be integrated with the helmet or hand held weapon, electronic device, and the like that may be carried or handled by a person. | 01-10-2013 |
20120313742 | Compact resonators for wireless energy transfer in vehicle applications - Described herein are compact resonator structures for wireless energy transfer that may be used in vehicle applications. The compact resonator structures comprise multiple parallel conductors to reduce the height of the structure. In some embodiments the compact resonator structures use angled routing of the conductor to reduce the effects of a minimum bend radius on the thickness of the structure. | 12-13-2012 |
20120313449 | RESONATOR OPTIMIZATIONS FOR WIRELESS ENERGY TRANSFER - Described herein are improved configurations for resonator for wireless power transfer that includes a magnetic material having at least one hollow section, and at least one electrical conductor wrapped around the magnetic material. The cavity of the magnetic material may be used for lossy elements such as circuit boards or electronics with reduced perturbations on the properties of the resonator compared to if the lossy elements were outside of the magnetic material next to the resonator. | 12-13-2012 |
20120206096 | SYSTEMS AND METHODS FOR WIRELESS POWER - The present invention is a wireless power system which includes components which can be recharged by harvesting wireless power, wireless power transmitters for transmitting the power, and devices which are powered from the components. Features such as temperature monitoring, tiered network protocols including both data and power communication, and power management strategies related to both charging and non-charging operations, are used to improve performance of the wireless network. Rechargeable batteries which are configured to be recharged using wireless power have unique components specifically tailored for recharging operations rather than for providing power to a device. A wireless power supply for powering implanted devices benefits from an external patient controller which contains features for adjusting both power transmission and harvesting provided by other components of the wireless power network. | 08-16-2012 |