Patents Assigned to Powermat Technologies Ltd
  • Publication number: 20220200354
    Abstract: A transmitter may inductively transfer power to a device via a relay. The transmitter may comprise circuitry configured to measure a current or voltage and reconfigure the transmitter with an operating frequency or duty cycle based on a measured change in the current or voltage within a time period. The measured change in the current or voltage within the time period may be caused by a removal of the device or an addition of a new device. The time period may be 200 usec or less.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 23, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: ITAY SHERMAN, LYA GLUMAN, ELIESER MACH, AMIR SALHUV
  • Publication number: 20220200358
    Abstract: According to a first aspect of the present disclosed subject matter, a method for detecting foreign objects by a host transmitter inductively coupled with a repeater, the method comprising: obtaining a Q-factor from a receiver placed on the repeater; measuring a decay pattern of at least one joint resonance frequency (JRF); determining a Q-factor of the repeater based on the decay pattern; and determining foreign object presence based on the Q-factor of the repeater and a corrected Q-factor obtained from the receiver.
    Type: Application
    Filed: January 3, 2022
    Publication date: June 23, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD
    Inventor: Itay Sherman
  • Publication number: 20220200353
    Abstract: A method may comprise determining a coupling factor between a coil of a transmitter and a coil of a relay based on a joint resonance frequency between the coil of the transmitter and the coil of the relay. The determining may occur when the coil of the relay and the coil of the transmitter are separated by a medium. The transmitter may inductively transmit power for wirelessly charging a device located near the relay. An operating frequency range, having a minimal operating frequency and a maximal operating frequency, may be determined based on the coupling factor. Power may be inductively transmitted in accordance with the minimal operating frequency and the maximal operating frequency.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: ITAY SHERMAN, LYA GLUZMAN, ELIESER MACH, AMIR SALHUV, SHARON BEN-ITZHAK, AYA KANTOR
  • Publication number: 20220190630
    Abstract: A wireless photovoltaic power system is provided. The wireless photovoltaic power system includes photovoltaic cell units that provide power. Each of the photovoltaic cell units include a photovoltaic cell. The wireless photovoltaic power system includes a first wireless power device that receives the power. The first wireless power device includes a coil that provides a magnetic field to wirelessly transfer the power to a second wireless power device. The first wireless power device provides a combinational implementation of a maximum power point tracking of the photovoltaic cell units and a power control of a load.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 16, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD
    Inventors: Itay Sherman, Elieser Mach, Neri Naveh
  • Publication number: 20220190651
    Abstract: According to one aspect of the present disclosed subject matter, a communication method for the wireless power charging system, having a device comprising a speaker configured to play audio-coded data-file, the method comprising: detecting, by a controller of a transmitter, voltage or current fluctuations in a coil of the transmitter; executing an audio-coded data-file reception-sequence; determining if the device comprising a power receiver; activating wireless power transmission to the device; and wherein the fluctuations correspond to audio-tones composing the audio-coded data-file played by the speaker, and wherein the reception-sequence decode and process the audio-tones for assembling the data-file.
    Type: Application
    Filed: March 20, 2020
    Publication date: June 16, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventor: Itay SHERMAN
  • Patent number: 11349353
    Abstract: A system and method for inductively providing electrical power at a plurality of power levels to electrical devices. The system may include an inductive power outlet unit conductively coupled to a power supply and an inductive power receiver unit associated with the electrical device. The inductive power outlet unit includes a driver device operable to generate power at a plurality of power levels and electrical power is transferred to the electrical device at a power level selected from the plurality of power levels, in accordance with electrical power requirements of the electrical device. The power receiver may be operable in a plurality of modes having a secondary inductor configured to operate selectively with a plurality of inductance values.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: May 31, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Arik Rofe, Elieser Mach, Oola Greenwald, Guy Raveh, Moti Ashery, Ilya Gluzman, Moti Kdoshim
  • Patent number: 11329518
    Abstract: According to a first aspect of a long-distance wireless charging system for charging at least one receiver in a venue that is used by humans or animals, the long-distance wireless charging system comprises a plurality of antennas aligned for transmitting RF radiation to a space within the venue; at least one sensor for determining a position of at least one animal and a location of the at least one receiver in the space; and a transmitter, having a controller, configured to shape the RF radiation to peak the RF radiation on the location of the at least one receiver and null the RF radiation around the position of the at least one animal by controlling amplitudes and phases of the RF radiation transmitted from each antenna of the plurality of antennas.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 10, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach
  • Publication number: 20220140654
    Abstract: According to a first aspect of the present disclosed subject matter, A wireless power transmission system configured to utilize existing power-line wires of a structure, having a switch and a load, the system comprising: a transmitter configured to utilize a hot transmitter (Tx) coil having one end and another end, wherein the hot Tx coil comprising: a first selective frequency short element connecting a phase wire and a neutral wire that power the transmitter; a first conductor connecting the phase to the one end; a second selective frequency short element connected in parallel to a first pole and a second pole of the switch; a second conductor connecting the first pole of the switch to the another end, wherein the existing power-line wires connect the second pole of the switch to one pole of the load and another pole of the load to the neutral, and wherein the first element and the second element and the first conductor and the second conductor form the hot Tx coil operable at the selective frequency.
    Type: Application
    Filed: February 6, 2020
    Publication date: May 5, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventor: Itay SHERMAN
  • Publication number: 20220131416
    Abstract: A wireless power receiver is provided herein. The wireless power receiver includes a coil and light emitting diodes. The coil of the wireless power receiver interacts with a magnetic field of a wireless power transmitter to wirelessly obtain induced power. The light emitting diodes of the wireless power receiver illuminate based on the induced power of the coil.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 28, 2022
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay Sherman, Elieser Mach
  • Publication number: 20220085656
    Abstract: A system for wirelessly charging, via a medium, a device having a receiver coil comprises at least one relay configured to inductively transfer power to the receiver coil of the device and a transmitter configured to inductively transmit, to the at least one relay, power for charging the device. A joint resonance frequencies of a transmitter resonance circuit and a relay resonance circuit have a main resonance frequency (MRF). The transmitter is configured to operate at an operational frequency (OPF) from a range of OPFs. The range of OPFs is different than the MRF. The at least one relay comprises a second relay coil connected in series to the first relay coil. One side of the second relay coil faces the device and a second side of the second relay coil is covered by a relay ferrite layer. The second relay coil is smaller than the first relay coil.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay SHERMAN, Ilya GLUZMAN, Elieser MACH, Amir SALHUV
  • Publication number: 20220085651
    Abstract: A voltage regulator for regulating power obtained from a bridge of a receiver for powering a load, wherein the receiver is wirelessly charged by a transmitter, the regulator comprising: a plurality of capacitors connected to each other in series and parallel to a rectified voltage of the bridge; one selector per one capacitor of the plurality of capacitors for engaging the one capacitor to the load; and a controller comprising: one selecting signal per the one selector configured to either engage or disengage the one capacitor to or from the load; and at least one sensor for current and voltage measurements.
    Type: Application
    Filed: January 9, 2020
    Publication date: March 17, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay SHERMAN, Amir SALHUV, Elieser MACH
  • Patent number: 11277030
    Abstract: According to a first aspect of the present disclosed subject matter, a system for wirelessly charging a device by a transmitter capable of receiving messages from a device, the system comprising: a configurable driver for inductively transfer power level for charging the device; a controller configured to control the driver and continuously measuring currents and voltages of the transmitter while the charging, wherein the control is tuning the power level by reconfiguring the driver with parameters selected from a group consisting of operating frequency; duty cycle; amplitude; and any combination thereof, based on the measuring indicating a power level deviation or resetting another power level based on messages.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 15, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv
  • Publication number: 20220077719
    Abstract: A power transmitter may send a digital ping to a receiver. The power transmitter may transfer power to the receiver. The power transmitter may receive a report from the receiver which may comprise a received power value. The power transmitter may determine a transmitted power parameter value, which may be based on a threshold value subtracted from a transmitter power and based on transmitter losses subtracted from the transmitter power. The power transmitter may determine that the received power value is less than the determined transmitted power parameter value and may send an analog ping to the receiver in response to a determination that the received power value is less than the determined transmitted power parameter value. The power transmitter may measure a decay pattern of the analog ping. The power transmitter may determine that the receiver comprises a friendly foreign object. The power transmitter may update the threshold value.
    Type: Application
    Filed: September 6, 2021
    Publication date: March 10, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay SHERMAN, Elieser MACH, Guy RAVEH
  • Patent number: 11271438
    Abstract: According to a first aspect of the present disclosed subject matter, a method for foreign object detection in a system having a relay adapted to inductively transfer power for charging a device and a transmitter having a controller configured to inductively transmit to the relay the power for charging the device, wherein the transmitter and the relay are separated by a medium, wherein the controller is capable of communicating with the device, the method comprising operations by the controller: determining power consumed by the transmitter; determining power loss on the transmitter according to continuous measurements of AC output current; obtaining coupling factor between the transmitter and the relay; determining power loss on the relay based on continuous measurements of AC output current and coupling factor; subtracting from the power consumed by the transmitter the power loss on the transmitter and power loss on the relay; obtaining from the device consumed power of the device; comparing a result of the
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 8, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv, Sharon Ben-Itzhak
  • Patent number: 11271429
    Abstract: According to a first aspect of the present disclosed subject matter, a dynamic calibration method in a system comprising a relay, having a coil, adapted to inductively transfer power for charging a device and a transmitter, having a coil and a controller configured to inductively transmit to the relay the power for charging the device, wherein the transmitter and the relay are separated by a medium, the method comprising: determining operating parameters selected from a group consisting of minimal and maximal operating frequency; direction of power increase relative to operating frequency; minimal and maximal duty cycle; minimal and maximal operating amplitude; and any combination thereof; wherein the operating parameters and a ping frequency are determined based on dynamic measurements of the transmitter operation and calculations executed by the controller during the calibration.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 8, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv, Sharon Ben-Itzhak, Aya Kantor
  • Publication number: 20220060054
    Abstract: According to one aspect of the present disclosed subject matter, a receiver inductively powered by a transmitter for powering a load, the receiver comprising: a resonance circuit capable of tuning its resonance frequency for coupling with the transmitter and generate AC voltage; a power supply section configured to rectify the AC voltage and adjust a DC current and a DC voltage to the load; and a control and communication section designed to set parameters for the receiver and communicate operation points (OP) to the transmitter, wherein the parameters and the OP derived from determining a minimal power loss of the receiver.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach, Amir Salhuv
  • Publication number: 20220060056
    Abstract: A method for wirelessly charging, by a transmitter, at least one receiver placed above at least one coil having at least one section, the method comprising: determining a plurality of charging locations that form a charging area above the at least one coil; determining a matrix of magnetic field contributions of each section in the at least one coil to each charging location of the plurality of charging locations; determining a magnetic field pattern of the charging area; calculating a current vector that comprises a current value for the each section in the at least one coil; and driving, by the transmitter, the each section in the at least one coil with the current vector for shaping the magnetic field pattern.
    Type: Application
    Filed: December 3, 2019
    Publication date: February 24, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventor: Itay SHERMAN
  • Publication number: 20220029460
    Abstract: A system and method for inductively providing electrical power at a plurality of power levels to electrical devices. The system may include an inductive power outlet unit conductively coupled to a power supply and an inductive power receiver unit associated with the electrical device. The inductive power outlet unit includes a driver device operable to generate power at a plurality of power levels and electrical power is transferred to the electrical device at a power level selected from the plurality of power levels, in accordance with electrical power requirements of the electrical device. The power receiver may be operable in a plurality of modes having a secondary inductor configured to operate selectively with a plurality of inductance values.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Arik Rofe, Elieser Mach, Oola Greenwald, Guy Raveh, Moti Ashery, Ilya Gluzman, Moti Kdoshim
  • Publication number: 20220006331
    Abstract: A system and method for inductively providing electrical power at a plurality of power levels to electrical devices. The system may include an inductive power outlet unit conductively coupled to a power supply and an inductive power receiver unit associated with the electrical device. The inductive power outlet unit includes a driver device operable to generate power at a plurality of power levels and electrical power is transferred to the electrical device at a power level selected from the plurality of power levels, in accordance with electrical power requirements of the electrical device. The power receiver may be operable in a plurality of modes having a secondary inductor configured to operate selectively with a plurality of inductance values.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Applicant: POWERMAT TECHNOLOGIES LTD.
    Inventors: Arik ROFE, Elieser MACH, Oola GREENWALD, Guy RAVEH, Moti ASHERY, Ilya GLUZMAN, Moti KDOSHIM
  • Patent number: 11218025
    Abstract: According to a first aspect of the present disclosed subject matter, a system for wirelessly charging a device, having a built-in coil, via a medium comprising: at least one relay adapted to inductively transfer power for charging the device; and a transmitter configured to inductively transmit to the at least one relay the power for charging the device, wherein the transmitter and the relay are separated by the medium and wherein the relay and the transmitter substantially face each other; wherein the transmitter further comprises a transmitter coil and a transmitter capacitor constituting a transmitter resonance circuit, wherein the relay further comprises a relay coil and a relay capacitor constituting a relay resonance circuit, and wherein a joint resonance frequencies (JRF) of both resonance circuits have a main resonance frequency (MRF); and wherein the transmitter operates at an operational frequency (OPF) selected from a range of OPFs, wherein the range of OPFs is substantially different than the MRF.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: January 4, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv