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公开(公告)号：US12027877B2
公开(公告)日：2024-07-02
申请号：US18022007
申请日：2021-09-21
发明人： Itay Sherman , Elieser Mach
摘要： 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.
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公开(公告)号：US11462947B2
公开(公告)日：2022-10-04
申请号：US17520256
申请日：2021-11-05
发明人： Itay Sherman , Elieser Mach , Amir Salhuv
IPC分类号： H02J5/00 , H02J50/12 , H02J50/80 , H02M1/14 , H02M3/158 , H04B5/00 , H02J50/00 , H02J7/00 , H02M1/00
摘要： 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.
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公开(公告)号：US11277030B2
公开(公告)日：2022-03-15
申请号：US16304881
申请日：2018-03-07
发明人： Itay Sherman , Ilya Gluzman , Elieser Mach , Amir Salhuv
摘要： 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.
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公开(公告)号：US20210242907A1
公开(公告)日：2021-08-05
申请号：US17165306
申请日：2021-02-02
发明人： Itay Sherman , Elieser Mach
摘要： 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.
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公开(公告)号：US20230037075A1
公开(公告)日：2023-02-02
申请号：US17959716
申请日：2022-10-04
发明人： Itay Sherman , Elieser Mach , Amir Salhuv
摘要： 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.
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公开(公告)号：US11482887B2
公开(公告)日：2022-10-25
申请号：US17533874
申请日：2021-11-23
发明人： Itay Sherman , Ilya Gluzman , Elieser Mach , Amir Salhuv
摘要： 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.
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公开(公告)号：US20220294275A1
公开(公告)日：2022-09-15
申请号：US17693519
申请日：2022-03-14
发明人： Itay Sherman , Naveh Neri
摘要： 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.
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公开(公告)号：US20220216895A1
公开(公告)日：2022-07-07
申请号：US17703506
申请日：2022-03-24
发明人： Itay Sherman , Elieser Mach
摘要： 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.
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公开(公告)号：US11329518B2
公开(公告)日：2022-05-10
申请号：US16910499
申请日：2020-06-24
发明人： Itay Sherman , Elieser Mach
摘要： 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.
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公开(公告)号：US11984944B2
公开(公告)日：2024-05-14
申请号：US17703506
申请日：2022-03-24
发明人： Itay Sherman , Elieser Mach
CPC分类号： H04B5/79 , H02J50/12 , H02J50/80 , H04B5/72 , H04L25/0212
摘要： 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.
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