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1.发明公开公开(公告)号：US20240235251A1
公开(公告)日：2024-07-11
申请号：US18613225
申请日：2024-03-22
Applicant: Eaton Intelligent Power Limited
Inventor： Cheng Luo , Huiting Xin , Han Li , Dawei Zheng , Hualiang Li
CPC classification number: H02J9/062 , H02M1/007 , H02M1/4233 , H02M3/33571 , H02M3/33573 , H02M3/33584
Abstract: The present invention provides a power factor correction circuit, a power factor correction assembly and an on-line uninterruptible power supply including the same. The power factor correction circuit comprises a pulse width modulated rectifier and an isolated DC-DC converter, wherein an output of the pulse width modulated rectifier is connected to an input of the isolated DC-DC converter. The power factor correction assembly comprises a plurality of power factor correction circuits described above, wherein inputs of pulse width modulated rectifiers in the plurality of power factor correction circuits are connected in series, and outputs of isolated DC-DC converters in the plurality of power factor correction circuits are connected in parallel. The power factor correction assembly of the present invention needs no line-frequency transformer and has the advantages of small size, low cost and improved operation reliability.
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2.发明申请公开(公告)号：US20230081157A1
公开(公告)日：2023-03-16
申请号：US17930949
申请日：2022-09-09
Applicant: Eaton Intelligent Power Limited
Inventor： Jiajie Duan , Jianxiong Yu , Qiang Chen , Han Li , Cheng Luo , Dongsheng Li
Abstract: The present invention provides a multi-active bridge converter. The converter comprises n multi-active bridges, wherein each of the n multi-active bridges comprises a DC/AC bridge, a single-phase transformer and m AC/DC bridges, where n is greater than or equal to 3, and m is greater than or equal to 1; the single-phase transformer is provided with one primary winding and m secondary windings; the DC/AC bridge is configured to receive a DC input signal, and AC output terminals of the DC/AC bridge are connected to the primary winding of the single-phase transformer; one terminal of the ith secondary winding among the m secondary windings of the single-phase transformer is connected to an AC input terminal of the ith AC/DC bridge among the m AC/DC bridges, the other terminal of the ith secondary winding is connected to the other terminals of the ith secondary windings among m secondary windings of single-phase transformers in the remaining (n−1) multi-active bridges, where i is greater than or equal to 1 and less than or equal to m; and positive busbars DC+ and negative busbars DC− of the DC output terminals of all the AC/DC bridges among the n multi-active bridges are respectively connected with each other to serve as DC output terminals of the multi-active bridge converter.
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3.发明授权公开(公告)号：US12136887B2
公开(公告)日：2024-11-05
申请号：US17930949
申请日：2022-09-09
Applicant: Eaton Intelligent Power Limited
Inventor： Jiajie Duan , Jianxiong Yu , Qiang Chen , Han Li , Cheng Luo , Dongsheng Li
Abstract: The present invention provides a multi-active bridge converter. The converter comprises n multi-active bridges, wherein each of the n multi-active bridges comprises a DC/AC bridge, a single-phase transformer and m AC/DC bridges, where n is greater than or equal to 3, and m is greater than or equal to 1; the single-phase transformer is provided with one primary winding and m secondary windings; the DC/AC bridge is configured to receive a DC input signal, and AC output terminals of the DC/AC bridge are connected to the primary winding of the single-phase transformer; one terminal of the ith secondary winding among the m secondary windings of the single-phase transformer is connected to an AC input terminal of the ith AC/DC bridge among the m AC/DC bridges, the other terminal of the ith secondary winding is connected to the other terminals of the ith secondary windings among m secondary windings of single-phase transformers in the remaining (n−1) multi-active bridges, where i is greater than or equal to 1 and less than or equal to m; and positive busbars DC+ and negative busbars DC− of the DC output terminals of all the AC/DC bridges among the n multi-active bridges are respectively connected with each other to serve as DC output terminals of the multi-active bridge converter.
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Patent Agency Ranking
公开(公告)号：US11967859B2
公开(公告)日：2024-04-23
申请号：US17299730
申请日：2019-12-03
Applicant: Eaton Intelligent Power Limited
Inventor： Cheng Luo , Huiting Xin , Han Li , Dawei Zheng , Hualiang Li
CPC classification number: H02J9/062 , H02M1/007 , H02M1/4233 , H02M3/33571 , H02M3/33573 , H02M3/33584
Abstract: The present invention provides a power factor correction circuit (21, 22), a power factor correction assembly (2) and an on-line uninterruptible power supply including the same. The power factor correction circuit (21) comprises a pulse width modulated rectifier (211, 221) and an isolated DC-DC converter (212, 222), wherein an output of the pulse width modulated rectifier (211, 221) is connected to an input of the isolated DC-DC converter (212, 222). The power factor correction assembly (2) comprises a plurality of power factor correction circuits (21, 22) described above, wherein inputs of pulse width modulated rectifiers (211, 221) in the plurality of power factor correction circuits (21, 22) are connected in series, and outputs of isolated DC-DC converters (212, 222) in the plurality of power factor correction circuits (21, 22) are connected in parallel. The power factor correction assembly (2) of the present invention needs no line-frequency transformer and has the advantages of small size, low cost and improved operation reliability.
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5.发明申请公开(公告)号：US20220302848A1
公开(公告)日：2022-09-22
申请号：US17534176
申请日：2021-11-23
Applicant: Eaton Intelligent Power Limited
Inventor： Jianxiong Yu , Jiajie Duan , Han Li , Cheng Luo , Qiang Chen
Abstract: The present invention provides an auxiliary pre-charging device for a power converter. The power converter includes at least one power unit with an input end being connected to a medium and high voltage AC power source, and an output end being connected to a low voltage DC bus, wherein the auxiliary pre-charging device includes a switch, a transformer, a pre-charging resistor, and a rectifier sequentially connected in series, one end of the switch is connected to the medium and high voltage AC power source, and an output end of the rectifier is connected to the low voltage DC bus. The present invention also provides a pre-charging method for a power converter, which uses the aforementioned auxiliary pre-charging device to start pre-charging at the low-voltage output end of the power converter.
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公开(公告)号：US20220337070A1
公开(公告)日：2022-10-20
申请号：US17662114
申请日：2022-05-05
Applicant: Eaton Intelligent Power Limited
Inventor： Justin Keith Griffiths , Nilesh Surase , Ritika Shetty , Shalini Tripathy , Somdut Dey , Madhavi Gupta , Mayura Madane , Sadiya Qureshi , Toseed Khan , Amit Chavan , Kumar Prasad Telikepalli , Atul Solvande , Hao Wang , Jiong Chen , Yueyue Deng , Jason Carroll , Srinivasan Arjun Tekalur , Jacob William Green , Ashok Chakravarthi Kandru , Cheng Luo , Tianyang Jiang , Cheng Wan , Ye Zhu , John Trublowski , Robert Stephen Douglass , Rajen Modi , Nilay Mehta , Laura Natali Valencia Fritsch , Han Li , Dongxin JIn , Lewei Qian , Jun Li , Hongrae Kim , Daniel R. Ouwenga , Patrick Herranz , Miroslav Horejs , Rohit Baranwal , Zhe Zhang , Martin Wayne Mensch , Brandon William Fisher , Austin Robert Zurface , Jeff Howard Urian , James David , Bharath Kumar Suda , Asheesh Kumar Soni , Rene Guy Gallet , Michael Scott Sullivan , Karsten Gerving , Guido Völlmar , Gerd Schmitz , Christoph Bausch , Ute Molitor , Lutz Friedrichsen , Kai Schroeder , Julia Otte , Madeline Philipsohn , Norbert Roesner , Volker Lang , Johannes Meissner , Paolo D'Amico , Jalpa Shah , Meng Wang , Damrongrit Piyabongkarn , Niles Stephen Ramseyer , Dennis Dukaric , Matt Haylock , Anvaya R. Hingangave , Devendra Patil
IPC: H02J7/00 , B60R16/033
Abstract: A method includes interpreting a contactor open event and a contactor load value for a contactor positioned on a motive power circuit for a mobile application, determining that a contactor opening event under load has occurred in response to the contactor open event and the contactor load value, and updating a contactor wear condition in response to the contactor opening event under load, wherein updating the contactor wear condition comprises accumulating a number of the contactor opening events under load.
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公开(公告)号：US20220021298A1
公开(公告)日：2022-01-20
申请号：US17299730
申请日：2019-12-03
Applicant: Eaton Intelligent Power Limited
Inventor： Cheng Luo , Huiting Xin , Han Li , Dawei Zheng , Hualiang Li
Abstract: The present invention provides a power factor correction circuit (21, 22), a power factor correction assembly (2) and an on-line uninterruptible power supply including the same. The power factor correction circuit (21) comprises a pulse width modulated rectifier (211, 221) and an isolated DC-DC converter (212, 222), wherein an output of the pulse width modulated rectifier (211, 221) is connected to an input of the isolated DC-DC converter (212, 222). The power factor correction assembly (2) comprises a plurality of power factor correction circuits (21, 22) described above, wherein inputs of pulse width modulated rectifiers (211, 221) in the plurality of power factor correction circuits (21, 22) are connected in series, and outputs of isolated DC-DC converters (212, 222) in the plurality of power factor correction circuits (21, 22) are connected in parallel. The power factor correction assembly (2) of the present invention needs no line-frequency transformer and has the advantages of small size, low cost and improved operation reliability.
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8.发明申请公开(公告)号：US20200274375A1
公开(公告)日：2020-08-27
申请号：US16827116
申请日：2020-03-23
Applicant: Eaton Intelligent Power Limited
Inventor： Justin Keith Griffiths , Nilesh Surase , Ritika Shetty , Shalini Tripathy , Somdut Dey , Madhavi Gupta , Mayura Madane , Sadiya Qureshi , Toseed Khan , Amit Chavan , Kumar Prasad Telikepalli , Atul Solvande , Hao Wang , Jiong Chen , Yueyue Deng , Jason Carroll , Srinivasan Arjun Tekalur , Jacob William Green , Chakravarthi Kandru , Cheng Luo , Tianyang Jiang , Cheng Wan , Ye Zhu , John Trublowski , Robert Stephen Douglass , Rajen Modi , Nilay Mehta , Laura Natali Valencia Fritsch , Han Li , Dongxin Jin , Lewei Qian , Jun Li , Hongrae Kim , Daniel R. Ouwenga , Patrick Herranz , Miroslav Horejs , Rohit Baranwal , Zhe Zhang , Martin Wayne Mensch , Brandon William Fisher , Austin Robert Zurface , Jeff Howard Urian , James David , Bharath Kumar Suda , Asheesh Kumar Soni , Rene Guy Gallet , Michael Scott Sullivan , Karsten Gerving , Guido Völlmar , Gerd Schmitz , Christoph Bausch , Ute Molitor , Lutz Friedrichsen , Kai Schroeder , Julia Otte , Madeline Philipsohn , Norbert Roesner , Volker Lang , Johannes Meissner , Paolo D'Amico , Jalpa Shah , Meng Wang , Damrongrit Piyabongkarn , Niles Stephen Ramseyer , Dennis Dukaric , Matt Haylock , Anvaya R. Hingangave , Devendra Patil
IPC: H02J7/00 , B60R16/033
Abstract: A power electronics assembly for a mobile application includes a first power electronics component selectively coupled to a high source on a first side and coupled to a high voltage battery on a second side, a second power electronics component selectively coupled to one of a low load or a low voltage battery on a first side and coupled to the high voltage battery on a second side; and a controller, including an operating mode circuit structured to determine a discharge operating mode for the mobile application, a power electronics configuration circuit structured to provide a switch state value for the first power electronics component and the second power electronics component in response to the discharge operating mode, and wherein the first power electronics component and the second power electronics component are responsive to the switch state value to coupled selected ones of the high source, low load, and low voltage battery to the high voltage battery.
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