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公开(公告)号：US11942799B2
公开(公告)日：2024-03-26
申请号：US17245956
申请日：2021-04-30
申请人： NuCurrent, Inc.
发明人： Andrew Kovacs , Jason Green
IPC分类号： H02J50/80 , H01F27/28 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/60 , H02J50/70 , H02J50/90 , H01F27/24
CPC分类号： H02J50/80 , H01F27/28 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/60 , H02J50/70 , H02J50/90 , H01F27/24
摘要： A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face.
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公开(公告)号：US11876387B2
公开(公告)日：2024-01-16
申请号：US17966563
申请日：2022-10-14
申请人： NuCurrent, Inc.
发明人： Jason Green , Andrew Kovacs , Mark Melone , Md Nazmul Alam
摘要： A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to a power supply external to the power transmitter for controlling a power level of a power signal configured for transmission to a power receiver, the power supply configured to configure a direct current (DC) power based on the power control signals. The power transmitter further includes an inverter circuit configured to receive the DC power from the power supply external to the power transmitter and convert the input power to a power signal. The power transmitter further includes a coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face and shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
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3.发明公开公开(公告)号：US20230231422A1
公开(公告)日：2023-07-20
申请号：US18085323
申请日：2022-12-20
申请人： NuCurrent, Inc.
发明人： Andrew Kovacs , Jason Green
摘要： A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
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4.发明申请公开(公告)号：US20220352763A1
公开(公告)日：2022-11-03
申请号：US17245959
申请日：2021-04-30
申请人： NuCurrent, Inc.
发明人： Mark Melone , Andrew Kovacs , Jason Green
摘要： A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, receive a receiver power request from a power receiver, provide a power request to an external power supply, based on the receiver power request, determine if a power signal at the coil is compliant with the receiver power request, and, if the power signal at the coil is compliant with the receiver power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
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公开(公告)号：US20220352761A1
公开(公告)日：2022-11-03
申请号：US17245953
申请日：2021-04-30
申请人： NuCurrent, Inc.
发明人： Andrew Kovacs , Jason Green
摘要： A power transmitter for wireless power transfer includes a verification load, a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the verification load is compliant with the power request, and, if the power signal at the verification load is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
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6.发明申请公开(公告)号：US20220352760A1
公开(公告)日：2022-11-03
申请号：US17245949
申请日：2021-04-30
申请人： NuCurrent, Inc.
发明人： Andrew Kovacs , Jason Green
摘要： A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
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7.发明申请公开(公告)号：US20210344233A1
公开(公告)日：2021-11-04
申请号：US16863682
申请日：2020-04-30
申请人： NuCurrent, Inc.
发明人： Jason Green , Andrew Kovacs , Mark Melone , Md Nazmul Alam
摘要： A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
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公开(公告)号：US11973355B1
公开(公告)日：2024-04-30
申请号：US17944081
申请日：2022-09-13
申请人： NuCurrent, Inc.
发明人： Jason Green , Mark D. Melone , Jason Luzinski , Michael Katz
CPC分类号： H02J50/80 , H02J7/00711 , H02J7/007192 , H02J50/10
摘要： A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
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9.发明公开公开(公告)号：US20240113567A1
公开(公告)日：2024-04-04
申请号：US18464749
申请日：2023-09-11
申请人： NuCurrent, Inc.
发明人： Jason Green , Andrew Kovacs , Mark Melone , Md Nazmul Alam
IPC分类号： H02J50/80 , H01F27/24 , H01F27/28 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/50 , H02J50/70
CPC分类号： H02J50/80 , H01F27/24 , H01F27/28 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/50 , H02J50/70
摘要： A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
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公开(公告)号：US20240088943A1
公开(公告)日：2024-03-14
申请号：US17944084
申请日：2022-09-13
申请人： NuCurrent, Inc.
发明人： Jason Green , Jason Luzinski
CPC分类号： H04B5/0037 , H02J50/12 , H02J50/70
摘要： A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and a pulsed power signal protocol. The pulsed power signal protocol includes a plurality of pulses, a plurality of signal-off periods, and a signal-on timer. The wireless power signals and the wireless data signals are transmitted during the plurality of pulses and the signal-on timer.
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