Patents by Inventor Itay Sherman

Itay Sherman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12027877
    Abstract: A wireless power transmitter is provided herein. The wireless power transmitter includes a coil, transistors, and a controller. The coil provides a magnetic field for a wireless power transfer in accordance with an alternating current power supply providing an alternating current input at a first frequency. The transistors couple to a phase and a zero of the alternating current power supply. The controller switches the plurality of transistors at a second frequency to drive a current across the coil that induces the magnetic field. The current includes an envelope that corresponds to the first frequency of the alternating current input.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: July 2, 2024
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach
  • Patent number: 11984944
    Abstract: A power receiver is provided herein. The power receiver provides in-band communication with a power transmitter. The power receiver recognizes a change in frequency that identifies a training sequence and determines an impulse response with respect to the training sequence. The power receiver also cancels an effect of the impulse response during the in-band communication.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: May 14, 2024
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach
  • Patent number: 11909252
    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: Grant
    Filed: January 13, 2023
    Date of Patent: February 20, 2024
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach, Neri Naveh
  • Publication number: 20240055900
    Abstract: A wireless power transmitter is provided. The wireless power transmitter includes a coil for inductively providing an electromagnetic energy to a receiving coil of a wireless receiver. The wireless power transmitter includes a capacitor connected to the coil. The wireless power transmitter includes a cover comprising a first layer and a second layer. The first layer receives the second layer. The second layer is interchangeable with other second layers.
    Type: Application
    Filed: June 22, 2023
    Publication date: February 15, 2024
    Applicant: POWERMAT TECHNOLOGIES, LTD.
    Inventors: Itay SHERMAN, Elieser Mach
  • Patent number: 11848569
    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: Grant
    Filed: March 11, 2022
    Date of Patent: December 19, 2023
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv
  • Publication number: 20230378812
    Abstract: A wireless power transmitter is provided herein. The wireless power transmitter includes a coil, transistors, and a controller. The coil provides a magnetic field for a wireless power transfer in accordance with an alternating current power supply providing an alternating current input at a first frequency. The transistors couple to a phase and a zero of the alternating current power supply. The controller switches the plurality of transistors at a second frequency to drive a current across the coil that induces the magnetic field. The current includes an envelope that corresponds to the first frequency of the alternating current input.
    Type: Application
    Filed: September 21, 2021
    Publication date: November 23, 2023
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay SHERMAN, Elieser MACH
  • Patent number: 11728692
    Abstract: A power transmitter is provided. The power transmitter may synchronize a sampling start time to a pulse-width modulation signal. The power transmitter may determine an average sampling rate for sampling a power carrier signal. The power transmitter may sample the power carrier signal to obtain sample values. The power transmitter may process the sampled values. The average sampling rate may be N times a data rate. The power transmitter may process the sampled power carrier signal using two digital match filters to produce two separate digital match filter outputs. The power transmitter may determine an amplitude of peaks for the two separate digital match filter outputs. The power transmitter may determine an interval between bits for the two separate digital match filter outputs. The power transmitter may determine whether a transmitted bit is a ‘0’ or ‘1’.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: August 15, 2023
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventor: Itay Sherman
  • Publication number: 20230211678
    Abstract: A system is provided herein. The system includes modules of an electric vehicle and a power receiver of the electric vehicle. The power receiver includes receiving coils and a controller. Each of the receiving coils directly and separately connects to a separate one of the modules. The controller monitors currents to and from each of the modules and modifies operation points of each of the modules by changing frequency or duty cycle to achieve a target current.
    Type: Application
    Filed: November 30, 2022
    Publication date: July 6, 2023
    Applicant: Powermat Technologies LTD.
    Inventor: Itay Sherman
  • Publication number: 20230155410
    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: January 13, 2023
    Publication date: May 18, 2023
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay Sherman, Elieser Mach, Neri Naveh
  • Publication number: 20230147536
    Abstract: A charger is provided. The charger includes a controller and an input/output module. The controller includes a memory storing a charging algorithm. The controller is configured to control a current flow to and from a battery according to the charging algorithm, collect information from the battery during charge and discharge cycles relative to the current flow, report the information to a server, and change the charging algorithm according to an optimized configuration. The input/output module is configured to connect the controller and the server and communicate the information.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 11, 2023
    Applicant: Powermat Technologies LTD.
    Inventor: Itay Sherman
  • Publication number: 20230050964
    Abstract: A user premises system is provided. The user premises system includes an internal unit and an external modem unit. The internal unit includes a wireless power transmitter unit that inductively provides power through an exterior structure of a premises. The external modem unit includes a wireless power receiver unit that inductively receives power from the wireless power transmitter unit of the internal unit through the exterior structure of the premises. The internal and the external modem units each include a short range transceiver that wireless communicate data between internal and the external modem units.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 16, 2023
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay Sherman, Elieser Mach, Neri Naveh
  • Publication number: 20230037429
    Abstract: A wireless power receiver coil is attached to a landing gear of a drone. The wireless power receiver coil is closer to the drone when the landing gear is in a retracted position and farther away from the drone when the landing gear is in an extended position. A length of the wireless power receiver coil may be the same length when the landing gear is in the retracted position and in the extended position. The wireless power receiver coil may be in a first orientation when the landing gear is in the retracted position and the wireless power receiver coil may be in a different orientation when the landing gear is in the extended position. The wireless power receiver coil may have a first shape when the landing gear is in the retracted position and may have a second shape when the landing gear is in the extended position.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 9, 2023
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay SHERMAN, Elieser MACH
  • Publication number: 20230037075
    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: October 4, 2022
    Publication date: February 2, 2023
    Applicant: POWERMAT TECHNOLOGIES LTD
    Inventors: Itay Sherman, Elieser Mach, Amir Salhuv
  • Patent number: 11557916
    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: Grant
    Filed: December 6, 2021
    Date of Patent: January 17, 2023
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach, Neri Naveh
  • Patent number: 11496002
    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: Grant
    Filed: January 3, 2022
    Date of Patent: November 8, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD
    Inventor: Itay Sherman
  • Patent number: 11496001
    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: Grant
    Filed: September 6, 2021
    Date of Patent: November 8, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach, Guy Raveh
  • Patent number: 11482887
    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: Grant
    Filed: November 23, 2021
    Date of Patent: October 25, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv
  • Patent number: 11462947
    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: Grant
    Filed: November 5, 2021
    Date of Patent: October 4, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach, Amir Salhuv
  • Publication number: 20220294275
    Abstract: A power receiver is provided. The power receiver includes a driver, a resonance circuit, and a controller. The resonance circuit includes a coil that receives power transmitted from a power transmitter and a rectifier that implements in-band communication. The controller monitors a condition of the power receiver, adopts a phase shift according to the condition of the power receiver, modulates the in-band communications to the power transmitter based on the phase shift to provide modulated communications, and sends the modulated communications through the coil to the power transmitter.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay Sherman, Naveh Neri
  • Publication number: 20220216895
    Abstract: A power receiver is provided herein. The power receiver provides in-band communication with a power transmitter. The power receiver recognizes a change in frequency that identifies a training sequence and determines an impulse response with respect to the training sequence. The power receiver also cancels an effect of the impulse response during the in-band communication.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: Powermat Technologies Ltd.
    Inventors: Itay Sherman, Elieser Mach