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公开(公告)号：US20240258914A1
公开(公告)日：2024-08-01
申请号：US18102010
申请日：2023-01-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Suman Dwari , W. Warren Chen , Lei Xing
Abstract: A system can include a bi-directional converter circuit comprising a plurality of switches and at least one flying capacitor. One or more the plurality of switches can experience overvoltage in a fault state. The system can include a control module operatively connected to the plurality of switches to control a state of the plurality of switches. The control module can be configured to receive a sense signal indicative of flying capacitor voltage and to control the one or more switches of the plurality of switches to turn on or remain on to prevent switch overvoltage of the one or more switches if the flying capacitor voltage is outside of a normal range.
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公开(公告)号：US11817752B2
公开(公告)日：2023-11-14
申请号：US17366275
申请日：2021-07-02
Applicant: Hamilton Sundstrand Corporation
Inventor： Tod Policandriotes , Parag M. Kshirsagar , Suman Dwari , Beata I. Wawrzyniak , Jagadeesh Kumar Tangudu , Sreenivasa R. Voleti
Abstract: Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.
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公开(公告)号：US20210136954A1
公开(公告)日：2021-05-06
申请号：US16670043
申请日：2019-10-31
Applicant: Hamilton Sundstrand Corporation
Inventor： Jinliang Wang , Suman Dwari
IPC: H05K7/20 , F28F13/10 , H01L25/07 , H01L23/427
Abstract: Disclosed is a thermal management system for removing heat from a power electronic heat source, the system comprising: a base plate having a plurality of fluid passages there through and extending between and inlet side of the base plate and an outlet side of the base plate; and a plurality of heat transfer pipe segments respectively attached to one or more of the plurality of fluid passages at the inlet side of the base plate and the outlet side of the base plate, the plurality of heat transfer pipe segments arranged adjacent one another, the plurality of heat transfer pipe segments containing a two-phase working fluid, and the plurality of heat transfer pipe segments forming a continuous flow path through and back into the base plate for the two-phase working fluid.
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公开(公告)号：US09843270B2
公开(公告)日：2017-12-12
申请号：US14595923
申请日：2015-01-13
Applicant: Hamilton Sundstrand Corporation
Inventor： Suman Dwari
Abstract: A multilevel rectifier includes an input lead, a switching module, and a multilevel direct current (DC) link. The switching module includes a plurality of switch devices connected to the input lead. The multilevel DC link includes a positive lead, a midpoint lead, and a negative lead. each connected to the switching module. The plurality of switching module switch devices are operatively connected between the input lead and the DC link to provide a greater number of output voltage levels than the number of leads in the DC link with unidirectional power flow capability.
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公开(公告)号：US20160204713A1
公开(公告)日：2016-07-14
申请号：US14595923
申请日：2015-01-13
Applicant: Hamilton Sundstrand Corporation
Inventor： Suman Dwari
IPC: H02M7/217
Abstract: A multilevel rectifier includes an input lead, a switching module, and a multilevel direct current (DC) link. The switching module includes a plurality of switch devices connected to the input lead. The multilevel DC link includes a positive lead, a midpoint lead, and a negative lead. each connected to the switching module. The plurality of switching module switch devices are operatively connected between the input lead and the DC link to provide a greater number of output voltage levels than the number of leads in the DC link with unidirectional power flow capability.
Abstract translation: 多电平整流器包括输入引线，开关模块和多电平直流（DC）链路。 开关模块包括连接到输入引线的多个开关装置。 多级直流链路包括正极引线，中点引线和负极引线。 每个连接到交换模块。 多个开关模块开关装置可操作地连接在输入引线和DC链路之间，以提供比具有单向功率流能力的DC链路中的引线数更多的输出电压电平。
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Patent Agency Ranking
公开(公告)号：US12278552B2
公开(公告)日：2025-04-15
申请号：US18127577
申请日：2023-03-28
Applicant: Hamilton Sundstrand Corporation
Inventor： Lei Xing , Suman Dwari , W. Warren Chen
Abstract: A system can include a bi-directional converter circuit comprising a plurality of switches and a flying capacitor configured to experience a low voltage or a high voltage, and a control module operatively connected to the plurality of switches to control a state of the plurality of switches. The control module can be configured to receive a sense signal indicative of a flying capacitor voltage and to control the one or more switches of the plurality of switches to charge or discharge the flying capacitor to maintain a target voltage or target voltage range.
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公开(公告)号：US20240418750A1
公开(公告)日：2024-12-19
申请号：US18336630
申请日：2023-06-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Suman Dwari , Weilun Chen , Yongduk Lee , Sriram Chandrasekaran
Abstract: A system having: a power switching circuit providing a drive current to a load, and having: a power source; first and second serially connected switches convert DC power from the power source into AC current to form the drive current, or vice versa; a first high-bandwidth current sensor circuit measures high-side current pulses through the first switch and provides a first analog signal, proportional to the high-side pulses; a second high-bandwidth current sensor circuit measures low-side current pulses through the second switch and provides a second analog signal is proportional to the low-side pulses; a signal processing device coupled to the first and second current sensor circuits performs steps of: converting the first analog signal to a first digital signal and the second analog signal to a second digital signal; and reconstructing the drive current and obtaining its cycle average values from the first and second digital signals.
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公开(公告)号：US11770066B2
公开(公告)日：2023-09-26
申请号：US17345548
申请日：2021-06-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Bo Liu , Yongduk Lee , Xin Wu , Suman Dwari
Abstract: A power converter can include a first line, a second line, a capacitor line disposed between the first line and the second line, a first capacitor and a second capacitor connected to the capacitor line in series between the first line and the second line, a midpoint line connected to a midpoint between the first capacitor and the second capacitor, and a protection circuit disposed between the first capacitor and the second capacitor and configured to provide protection to one or more portions of the power converter.
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公开(公告)号：US11728738B2
公开(公告)日：2023-08-15
申请号：US17327119
申请日：2021-05-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Baljit Singh Riar , Suman Dwari
CPC classification number: H02M3/33576 , H02J7/0068 , H02M1/32
Abstract: An electrical power distribution system includes a first high side sub-module including a high side converter and a high side energy storage device. The first high side sub-module is electrically coupled to a high side load that requires a high voltage or medium voltage DC, the high voltage DC being higher than the medium voltage DC. The system also includes a first low side sub-module including a low side converter and a low side energy storage device. The first high side sub-module and the first low side sub-module are configured to be inductively coupled. The first high side sub-module and the first low side sub-module form a first module.
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公开(公告)号：US20220376626A1
公开(公告)日：2022-11-24
申请号：US17327119
申请日：2021-05-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Baljit Singh Riar , Suman Dwari
Abstract: An electrical power distribution system includes a first high side sub-module including a high side converter and a high side energy storage device. The first high side sub-module is electrically coupled to a high side load that requires a high voltage or medium voltage DC, the high voltage DC being higher than the medium voltage DC. The system also includes a first low side sub-module including a low side converter and a low side energy storage device. The first high side sub-module and the first low side sub-module are configured to be inductively coupled. The first high side sub-module and the first low side sub-module form a first module.
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