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公开(公告)号：US20220224162A1
公开(公告)日：2022-07-14
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：US11289948B2
公开(公告)日：2022-03-29
申请号：US16616914
申请日：2018-04-19
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Arun Kumar Raghunathan , Rahul Bhujade , Satishbabu Bhogineni , Somakumar Ramachandrapanicker
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：US10978880B2
公开(公告)日：2021-04-13
申请号：US14878554
申请日：2015-10-08
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Arun Kumar Raghunathan , Somakumar Ramachandrapanicker , Suma Memana Narayana Bhat , Rijin Saseendran , Adnan Kutubuddin Bohori , Dinkar Agrawal
Abstract: A system including a primary coil assembly is provided. The primary coil assembly is configured to operate at a first resonant frequency having a first bandwidth; wherein a difference between the first resonant frequency and a system frequency is at least two times the first bandwidth, where the first resonant frequency is selected such that upon energizing the primary coil assembly at the system frequency, a primary current is induced in the primary coil assembly, which is at least ten times lesser than a system current.
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公开(公告)号：US09697951B2
公开(公告)日：2017-07-04
申请号：US14012245
申请日：2013-08-28
Applicant: General Electric Company
CPC classification number: H01F38/14 , B60L11/182 , B60L11/1825 , B60L11/1833 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/128 , Y02T90/14
Abstract: A contactless power transfer system comprising a power exchanging coil configured to exchange power via a magnetic field, a field focusing element for focusing the magnetic field, and a compensation coil having a resonance frequency different from a resonance frequency of the field focusing element for matching an impedance of the contactless power transfer system and compensating a change in phase resulting from a misalignment in the contactless power transfer system.
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公开(公告)号：US20150331079A1
公开(公告)日：2015-11-19
申请号：US14276253
申请日：2014-05-13
Applicant: General Electric Company
Inventor： Amol Rajaram Kolwalkar , Sameer Dinkar Vartak , Arun Kumar Raghunathan , Abhijeet Arvind Kulkarni , Charles Brendan O'Sullivan
CPC classification number: G01R35/005 , G01R15/144 , G01R19/2503
Abstract: A calibration method for enhancing a measurement accuracy of one or more voltage sensing devices in presence of a plurality of conductors is provided. The method includes operatively coupling at least one voltage sensing device of the one or more voltage sensing devices to a respective conductor of the plurality of conductors and determining a sensed voltage value of the respective conductor using the at least one voltage sensing device The method further includes determining a calibration matrix having cross-coupling factors representative of cross-coupling between an antenna of the at least one voltage sensing device and other conductors of the plurality of conductors and determining a corrected voltage value of the respective conductor by deducting at least in part contributions of the cross-coupling from the sensed voltage value of the respective conductor using the calibration matrix.
Abstract translation: 提供了一种用于在存在多个导体的情况下增强一个或多个电压感测装置的测量精度的校准方法。 所述方法包括将所述一个或多个电压感测装置的至少一个电压感测装置可操作地耦合到所述多个导体中的相应导体，并使用所述至少一个电压感测装置确定所述相应导体的感测电压值。所述方法还包括 确定具有代表所述至少一个电压感测装置的天线与所述多个导体的其它导体之间的交叉耦合的交叉耦合因子的校准矩阵，并且通过至少部分地贡献来确定相应导体的校正电压值 使用校准矩阵从相应导体的感测电压值进行交叉耦合。
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Patent Agency Ranking
公开(公告)号：US20240006917A1
公开(公告)日：2024-01-04
申请号：US18469287
申请日：2023-09-18
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：US20230268775A1
公开(公告)日：2023-08-24
申请号：US18307296
申请日：2023-04-26
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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公开(公告)号：US11689056B2
公开(公告)日：2023-06-27
申请号：US16616409
申请日：2018-05-21
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：US20220393519A1
公开(公告)日：2022-12-08
申请号：US17820058
申请日：2022-08-16
Applicant: General Electric Company
Abstract: A wireless charging device is disclosed. The wireless charging device includes a transmitter detection coil configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device. Also, the wireless charging device includes a control unit coupled to the transmitter detection coil and configured to detect the receiver device based on the characteristic of the first AC voltage signal. Further, the wireless charging device includes a driver unit coupled to the control unit and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device is detected. In addition, the wireless charging device includes a power transmission coil configured to wirelessly transmit the second AC voltage signal to the receiver device.
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公开(公告)号：US20220224161A1
公开(公告)日：2022-07-14
申请号：US17705782
申请日：2022-03-28
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Arun Kumar Raghunathan , Rahul Bhujade , Satishbabu Bhogineni , Somakumar Ramachandrapanicker
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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