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公开(公告)号：US10056840B1
公开(公告)日：2018-08-21
申请号：US15833707
申请日：2017-12-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael J. Hanson , Daniel Knope
CPC classification number: H02M3/158 , H02M2001/007
Abstract: A regenerative direct current (DC) load includes an input circuit, an output circuit, a low pass filter circuit, and a current regulating circuit. The input circuit is configured to receive electrical power. The output circuit is configured to provide electrical power. The low pass filter circuit is electrically coupled to the output in series. The current regulating circuit is configured to regulate a current of the electrical power. The current regulating circuit is electrically coupled to the input. The current regulating circuit includes a first switch, and a first control circuit. The first switch is electrically coupled between the input circuit and ground. The first control circuit is configured to sense the current and adjust a cycle duration and/or duty cycle of the first switch based upon the sensed current.
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公开(公告)号：US20210286388A1
公开(公告)日：2021-09-16
申请号：US16818347
申请日：2020-03-13
Applicant: Hamilton Sundstrand Corporation
Inventor： Daniel Knope , Adrian E. Vandergrift , Francisco X. Romo
Abstract: A trim head drive is provided. The trim head drive includes a nonlinear power supply. The nonlinear power supply includes an output and a return connected to a trim coil of a generator. An output of the nonlinear power supply directly drives a trim coil to control an output frequency of the generator. The nonlinear power supply varies the output positively and negatively to either sink or source a trim head current to control an output frequency of the generator.
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Patent Agency Ranking
公开(公告)号：US11619956B2
公开(公告)日：2023-04-04
申请号：US16818347
申请日：2020-03-13
Applicant: Hamilton Sundstrand Corporation
Inventor： Daniel Knope , Adrian E. Vandergrift , Francisco X. Romo
Abstract: A trim head drive is provided. The trim head drive includes a nonlinear power supply. The nonlinear power supply includes an output and a return connected to a trim coil of a generator. An output of the nonlinear power supply directly drives a trim coil to control an output frequency of the generator. The nonlinear power supply varies the output positively and negatively to either sink or source a trim head current to control an output frequency of the generator.
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公开(公告)号：US10981667B2
公开(公告)日：2021-04-20
申请号：US15982454
申请日：2018-05-17
Applicant: Hamilton Sundstrand Corporation
Inventor： Daniel Knope , Christopher Derek Thornton , Richard T. Wetzel , Christopher Gillette , Benjamin Fisher , Timothy Arn Goodrich , Adrian E. Vandergrift , Dana A. Sievert
Abstract: A generator control unit includes a plurality of permanent magnet generator (PMG) inputs, a transformer including a multi-configuration input winding and at least one output winding. Each PMG input in the plurality of PMG inputs is connected to the multi-configuration input winding at a corresponding input winding input.
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公开(公告)号：US20190352017A1
公开(公告)日：2019-11-21
申请号：US15982454
申请日：2018-05-17
Applicant: Hamilton Sundstrand Corporation
Inventor： Daniel Knope , Christopher Derek Thornton , Richard T. Wetzel , Christopher Gillette , Benjamin Fisher , Timothy Arn Goodrich , Adrian E. Vandergrift , Dana A. Sievert
Abstract: A generator control unit includes a plurality of permanent magnet generator (PMG) inputs, a transformer including a multi-configuration input winding and at least one output winding. Each PMG input in the plurality of PMG inputs is connected to the multi-configuration input winding at a corresponding input winding input.
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公开(公告)号：US09928143B2
公开(公告)日：2018-03-27
申请号：US15134047
申请日：2016-04-20
Applicant: Hamilton Sundstrand Corporation
Inventor： John A. Dickey , Michael J. Hanson , Daniel Knope , Matt Earing
CPC classification number: G06F11/1441 , G01R31/31724 , G01R31/31816 , G06F1/24 , G06F1/26 , G06F1/3234 , G06F9/4418 , G06F11/0721 , G06F11/0757 , G06F11/076 , G06F11/0766 , G06F11/0793 , G06F11/27 , G06F2201/805 , G06F2201/85 , H03K19/007
Abstract: A system and method to manage a single event latched (SEL) condition, the method including operations to monitor, for a predetermined condition associated with single event latched (SEL) states, a reset signal output from a watchdog device to a microprocessor, wherein the reset signal is responsive to a malfunction condition associated with the microprocessor. The method further includes operations to control provision of power to the microprocessor in response to detection of the predetermined condition.
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公开(公告)号：US20170308441A1
公开(公告)日：2017-10-26
申请号：US15134047
申请日：2016-04-20
Applicant: Hamilton Sundstrand Corporation
Inventor： John A. Dickey , Michael J. Hanson , Daniel Knope , Matt Earing
CPC classification number: G06F11/1441 , G01R31/31724 , G01R31/31816 , G06F1/24 , G06F1/26 , G06F1/3234 , G06F9/4418 , G06F11/0721 , G06F11/0757 , G06F11/076 , G06F11/0766 , G06F11/0793 , G06F11/27 , G06F2201/805 , G06F2201/85 , H03K19/007
Abstract: A system and method to manage a single event latched (SEL) condition, the method including operations to monitor, for a predetermined condition associated with single event latched (SEL) states, a reset signal output from a watchdog device to a microprocessor, wherein the reset signal is responsive to a malfunction condition associated with the microprocessor. The method further includes operations to control provision of power to the microprocessor in response to detection of the predetermined condition.
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