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公开(公告)号：US20230327491A1
公开(公告)日：2023-10-12
申请号：US18336335
申请日：2023-06-16
Applicant: General Electric Company
Inventor： Suma Memana Narayana Bhat , Viswanathan Kanakasabai , Arun Kumar Raghunathan , Rahul Bhujade , Satishbabu Bhogineni , Somakumar Ramachandrapanicker
Abstract: A transmitting assembly (114, 214, 334) configured to transmit electric power in a universal wireless charging device (102, 200, 302) is presented. The transmitting assembly (114, 214, 334) includes a first coil (116, 216, 316) embedded in a printed circuit board (220) and configured to transmit a first AC voltage signal having a first frequency. Also, the transmitting assembly (114, 214, 334) includes a second coil (118, 218, 318) disposed on the printed circuit board (220) and configured to transmit a second AC voltage signal having a second frequency, wherein the second frequency is different from the first frequency, and wherein the first AC voltage signal having the first frequency and the second AC voltage signal having the second frequency are used to wirelessly charge a plurality of receiver devices (104, 106) having different frequency standards.
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公开(公告)号：US11764609B2
公开(公告)日：2023-09-19
申请号：US17707819
申请日：2022-03-29
Applicant: General Electric Company
Inventor： Pradeep Vijayan , Rajendra Naik , Arun Kumar Raghunathan , Vishnu Mahadeva Iyer
Abstract: A contactless power transfer system is provided. The contactless power transfer system includes a first power exchanger coil configured to exchange power. The contactless power transfer system also includes a first power converter operatively coupled to the first power exchanger coil and configured to convert a direct current power to an alternating current power at a system frequency. The contactless power transfer system further includes a controller configured to control an operating state of the first power converter to vary an alternating current power provided to the first power exchanger coil at the system frequency.
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公开(公告)号：US11431198B2
公开(公告)日：2022-08-30
申请号：US16619428
申请日：2018-04-30
Applicant: General Electric Company
Abstract: A wireless charging device (102) is disclosed. The wireless charging device (102) includes a transmitter detection coil (130) configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device (104). Also, the wireless charging device (102) includes a control unit (112) coupled to the transmitter detection coil (130) and configured to detect the receiver device (104) based on the characteristic of the first AC voltage signal. Further, the wireless charging device (102) includes a driver unit (108) coupled to the control unit (112) and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device (104) is detected. In addition, the wireless charging device (102) includes a power transmission coil (116) configured to wirelessly transmit the second AC voltage signal to the receiver device (104).
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14.发明授权公开(公告)号：US11081900B2
公开(公告)日：2021-08-03
申请号：US16469525
申请日：2017-10-28
Applicant: GENERAL ELECTRIC COMPANY
Abstract: A charging pad includes a power drive unit and a transmitting unit. The power drive unit includes a first oscillator to generate a first AC voltage signal having a first frequency, and a first amplifier to amplify the first AC voltage signal. Also, the power drive unit includes a second oscillator to generate a second AC voltage signal having a second frequency, and a second amplifier to amplify the second AC voltage signal. Additionally, the power drive unit includes an adder to combine the amplified first AC voltage signal and the amplified second AC voltage signal. Furthermore, the transmitting unit includes a first frequency coil configured to transmit the amplified first AC voltage signal having the first frequency, and a second frequency coil configured to transmit the amplified second AC voltage signal having the second frequency.
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15.发明授权公开(公告)号：US11075545B2
公开(公告)日：2021-07-27
申请号：US16528306
申请日：2019-07-31
Applicant: General Electric Company
Inventor： Kapil Jha , Arun Kumar Raghunathan , Arvind Kumar Tiwari , Deepak Aravind
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit for converting a first DC voltage of an input power to a first AC voltage, a contactless power transfer unit for transmitting the input power having the first AC voltage, and a second converting unit for transmitting the power having a second DC voltage corresponding to the first AC voltage to an electric load. Additionally, the wireless power transfer system includes an active voltage tuning unit for controlling the second DC voltage based on a difference between the second DC voltage and a reference voltage and at least one among a difference between the resonant frequency and the constant operating frequency and a difference between a phase angle of the first AC voltage and a phase angle of an AC current.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11018533B2
公开(公告)日：2021-05-25
申请号：US16469531
申请日：2017-10-30
Applicant: GENERAL ELECTRIC COMPANY
IPC: H02J50/90 , H02J50/12 , H02J5/00 , H02J7/02 , B60L53/122
Abstract: A calibration device includes a controller configured to communicate a plurality of input voltage signals having different determined frequencies to a first power exchange coil. Also, the calibration device includes a load unit coupled to a second power exchange coil, where the load unit includes at least a first electrical load and a second electrical load. Further, the calibration device includes a voltage sensor configured to measure a plurality of first output voltage signals across the first electrical load and a plurality of second output voltage signals across the second electrical load, and where the controller is configured to determine an optimal operating frequency of a wireless power transfer system based on the plurality of input voltage signals, the plurality of first output voltage signals, and the plurality of second output voltage signals.
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公开(公告)号：US20170307702A1
公开(公告)日：2017-10-26
申请号：US15517132
申请日：2015-10-08
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Adnan Kutubuddin Bohori , Rajendra Naik , Suma Memana Narayana Bhat , Arun Kumar Raghunathan
IPC: G01R33/385 , A61B5/055
CPC classification number: G01R33/3852 , A61B5/055 , G01R33/36
Abstract: A gate driver unit is presented. The gate driver unit includes a first power exchanging coil operatively coupled to a power source. The gate driver unit includes a second power exchanging coil configured to receive power from the first power exchanging coil via a magnetic field and a field focusing element disposed between the first power exchanging coil and the second power exchanging coil and configured to focus the magnetic field onto the second power exchanging coil. The gate driver unit also includes a first circuit coupled to the second power exchanging coil. The gate driver unit includes a gate drive subunit operatively coupled to the first circuit and configured to provide an output signal to a control terminal corresponding to a controllable switch of a second circuit. A magnetic resonance imaging system and a method of contactless power transfer in a magnetic resonance imaging system are also presented.
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公开(公告)号：US20240266880A1
公开(公告)日：2024-08-08
申请号：US18638185
申请日：2024-04-17
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Arun Kumar Raghunathan , Rahul Bhujade , Satishbabu Bhogineni , Somakumar Ramachandrapanicker
CPC classification number: H02J50/12 , H02J3/02 , H02J7/02 , H02J50/10 , H02J50/40 , H02J50/402 , H02J50/60 , H02J50/90
Abstract: A wireless charging device includes a driver unit configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device includes a transmitting unit having a first coil and a first capacitor and configured to transmit the first AC voltage signal. Further, the transmitting unit includes a second coil and a second capacitor and configured to transmit the second AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a first receiver device operating at the first frequency based on a change in a first voltage in the transmitting unit, and detect a second receiver device operating at the second frequency based on a change in a second voltage in the transmitting unit.
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公开(公告)号：US20240047133A1
公开(公告)日：2024-02-08
申请号：US18492358
申请日：2023-10-23
Applicant: General Electric Company
Inventor： Suma Memana Narayana Bhat , Deepak Aravind , Somakumar Ramachandrapanicker , Arun Kumar Raghunathan
CPC classification number: H01F38/14 , H02J50/12 , H02J50/40 , H02J7/0042
Abstract: A charging pad (130) for charging one or more receiver devices (106, 108) is disclosed. The charging pad (130) includes a power drive unit (110) configured to generate a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Further, the charging pad (130) includes a transmitting unit (114) including a single power exchange coil (120) coupled to the power drive unit (110), wherein the single power exchange coil (120) includes a first coil segment (212) configured to transmit the first AC voltage signal having the first frequency when the first AC voltage signal is received from the power drive unit (110). Also, the single power exchange coil (120) includes a second coil segment (214) configured to transmit the second AC voltage signal having the second frequency when the second AC voltage signal is received from the power drive unit (110).
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公开(公告)号：US11641134B2
公开(公告)日：2023-05-02
申请号：US16604481
申请日：2018-03-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sivabalan Mohan , Somakumar Ramachandrapanicker , Arun Kumar Raghunathan , Rajendra Naik , Adnan Kutubuddin Bohori
Abstract: A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.
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