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).
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Patent number: 12027877Abstract: 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: GrantFiled: September 21, 2021Date of Patent: July 2, 2024Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach
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Patent number: 11984944Abstract: 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: GrantFiled: March 24, 2022Date of Patent: May 14, 2024Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach
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Patent number: 11909252Abstract: 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: GrantFiled: January 13, 2023Date of Patent: February 20, 2024Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach, Neri Naveh
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Publication number: 20240055900Abstract: 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: ApplicationFiled: June 22, 2023Publication date: February 15, 2024Applicant: POWERMAT TECHNOLOGIES, LTD.Inventors: Itay SHERMAN, Elieser Mach
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Patent number: 11848569Abstract: 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: GrantFiled: March 11, 2022Date of Patent: December 19, 2023Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv
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Publication number: 20230378812Abstract: 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: ApplicationFiled: September 21, 2021Publication date: November 23, 2023Applicant: Powermat Technologies Ltd.Inventors: Itay SHERMAN, Elieser MACH
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Patent number: 11728692Abstract: 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: GrantFiled: May 17, 2021Date of Patent: August 15, 2023Assignee: POWERMAT TECHNOLOGIES LTD.Inventor: Itay Sherman
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Publication number: 20230211678Abstract: 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: ApplicationFiled: November 30, 2022Publication date: July 6, 2023Applicant: Powermat Technologies LTD.Inventor: Itay Sherman
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Publication number: 20230155410Abstract: 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: ApplicationFiled: January 13, 2023Publication date: May 18, 2023Applicant: Powermat Technologies Ltd.Inventors: Itay Sherman, Elieser Mach, Neri Naveh
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Publication number: 20230147536Abstract: 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: ApplicationFiled: October 27, 2022Publication date: May 11, 2023Applicant: Powermat Technologies LTD.Inventor: Itay Sherman
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Publication number: 20230050964Abstract: 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: ApplicationFiled: August 11, 2022Publication date: February 16, 2023Applicant: Powermat Technologies Ltd.Inventors: Itay Sherman, Elieser Mach, Neri Naveh
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Publication number: 20230037429Abstract: 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: ApplicationFiled: August 1, 2022Publication date: February 9, 2023Applicant: Powermat Technologies Ltd.Inventors: Itay SHERMAN, Elieser MACH
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Publication number: 20230037075Abstract: 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: ApplicationFiled: October 4, 2022Publication date: February 2, 2023Applicant: POWERMAT TECHNOLOGIES LTDInventors: Itay Sherman, Elieser Mach, Amir Salhuv
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Patent number: 11557916Abstract: 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: GrantFiled: December 6, 2021Date of Patent: January 17, 2023Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach, Neri Naveh
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Patent number: 11496002Abstract: 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: GrantFiled: January 3, 2022Date of Patent: November 8, 2022Assignee: POWERMAT TECHNOLOGIES LTDInventor: Itay Sherman
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Patent number: 11496001Abstract: 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: GrantFiled: September 6, 2021Date of Patent: November 8, 2022Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach, Guy Raveh
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Patent number: 11482887Abstract: 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: GrantFiled: November 23, 2021Date of Patent: October 25, 2022Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv
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Patent number: 11462947Abstract: 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: GrantFiled: November 5, 2021Date of Patent: October 4, 2022Assignee: POWERMAT TECHNOLOGIES LTD.Inventors: Itay Sherman, Elieser Mach, Amir Salhuv
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Publication number: 20220294275Abstract: 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: ApplicationFiled: March 14, 2022Publication date: September 15, 2022Applicant: Powermat Technologies Ltd.Inventors: Itay Sherman, Naveh Neri
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Publication number: 20220216895Abstract: 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: ApplicationFiled: March 24, 2022Publication date: July 7, 2022Applicant: Powermat Technologies Ltd.Inventors: Itay Sherman, Elieser Mach