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公开(公告)号：US20180041127A1
公开(公告)日：2018-02-08
申请号：US15226664
申请日：2016-08-02
Applicant: ABB Schweiz AG
Inventor： Sandeep Bala , Eddy Aeloiza , Arun Kadavelugu
IPC: H02M3/24
CPC classification number: H02M3/24 , H02M1/08 , H02M3/22 , H02M3/337 , H02M7/08 , H02M2001/0064 , H02M2001/0077 , H03K17/691 , H03K2217/0081
Abstract: Unique systems, methods, techniques and apparatuses of a gate drive system are disclosed. One exemplary embodiment is a drive circuit electrically coupled to a main switching device comprising a first inverter, a first inverter controller, an air core transformer, at least one rectifier, at least two smoothing capacitors, a current buffer stage, and a detection circuit. The first inverter controller is structured to operate the first inverter in a first mode and a second mode. The air core transformer is structured to receive the converted AC power from the first inverter. The detection circuit is structured to detect a first mode of the first inverter and a second mode of the first inverter, and operate the current buffer stage based on a detected first mode of the inverter and a detected second mode of the first inverter.
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公开(公告)号：US20240339256A1
公开(公告)日：2024-10-10
申请号：US18297292
申请日：2023-04-07
Applicant: ABB Schweiz AG
Inventor： Dorai Yelaverthi , Harish Suryanarayana , Arun Kadavelugu
CPC classification number: H01F27/26 , H01F27/28 , H01F41/0206 , H01F41/04
Abstract: A device includes a core structure including a first end plate and a second end plate. The first end plate and second end plate include a first portion and a second portion that extend from opposing sides of a third portion and include an increasing cross-sectional area configured to provide soft saturation properties in response to increasing electrical current. The core structure may further include a coil member and a core section. The core section is disposed between the first plate member and second plate member. The core section includes a first core member, a second core member, and a central disc member. The core section also includes a channel formed between the central disc member and the first core member and the second core member to enable the coil member to circumferentially wind around the central disc member.
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Patent Agency Ranking
公开(公告)号：US10014781B2
公开(公告)日：2018-07-03
申请号：US15226664
申请日：2016-08-02
Applicant: ABB Schweiz AG
Inventor： Sandeep Bala , Eddy Aeloiza , Arun Kadavelugu
CPC classification number: H02M3/24 , H02M1/08 , H02M3/22 , H02M3/337 , H02M7/08 , H02M2001/0064 , H02M2001/0077 , H03K17/691 , H03K2217/0081
Abstract: Unique systems, methods, techniques and apparatuses of a gate drive system are disclosed. One exemplary embodiment is a drive circuit electrically coupled to a main switching device including a first inverter, a first inverter controller, an air core transformer, at least one rectifier, at least two smoothing capacitors, a current buffer stage, and a detection circuit. The first inverter controller is structured to operate the first inverter in a first mode and a second mode. The air core transformer is structured to receive the converted AC power from the first inverter. The detection circuit is structured to detect a first mode of the first inverter and a second mode of the first inverter, and operate the current buffer stage based on a detected first mode of the inverter and a detected second mode of the first inverter.
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公开(公告)号：US20240355531A1
公开(公告)日：2024-10-24
申请号：US18304152
申请日：2023-04-20
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , Dorai Yelaverthi , Arun Kadavelugu
CPC classification number: H01F27/2823 , H01F27/26 , H01F41/0206 , H01F41/04
Abstract: A device may include a core structure having low permeability characteristics and defining a first cross-sectional area, a coil member including one or more loops that winds around the core structure and defines a second cross-sectional area. The second cross-sectional area is between 1.2 to 5 times larger than the first cross-sectional area. The device may include a frame member positioned around the core structure or a portion thereof and the coil member may wind around the frame member to define the second cross-sectional area. The core structure may be composed of a low permeability magnetic material having a low relative permeability. The core structure may be composed of a high permeability magnetic material and the core structure may further include an air gap structure to enable the core structure to demonstrate the low permeability characteristics.
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公开(公告)号：US11695405B2
公开(公告)日：2023-07-04
申请号：US16444343
申请日：2019-06-18
Applicant: ABB Schweiz AG
Inventor： Arun Kadavelugu , Eddy Aeloiza
IPC: H02H9/00 , H03K17/082 , H02H7/20 , H01L29/20 , H01L29/16
CPC classification number: H03K17/082 , H02H7/205 , H01L29/1608 , H01L29/2003
Abstract: Systems, methods, techniques and apparatuses of a semiconductor control system are disclosed. One exemplary embodiment is a method for protecting a semiconductor switch comprising receiving a first voltage during a second blanking period following a first blanking period; determining whether a short circuit fault is occurring by comparing the first voltage to a fast detection threshold corresponding to a first value of a drain-source voltage of the semiconductor switch; if a short circuit is not occurring: receiving a second voltage after the second blanking period ends; determining whether a short circuit fault is occurring by comparing the second voltage to a slow detection threshold corresponding to a second value of the drain-source voltage; and if a short circuit fault is occurring, opening the semiconductor switch, wherein the first value of the drain-source voltage is greater than the second value of the drain-source voltage.
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公开(公告)号：US10393795B2
公开(公告)日：2019-08-27
申请号：US15659096
申请日：2017-07-25
Applicant: ABB Schweiz AG
Inventor： Eddy Aeloiza , Arun Kadavelugu , Joonas Puukko , Liming Liu , Jukka-Pekka Sjoroos
IPC: G01R31/26 , H01L29/16 , H01L29/78 , H03K17/687 , G01R31/28
Abstract: Unique systems, methods, techniques and apparatuses of semiconductor failure prognostication. One exemplary embodiment is a power converter comprising a semiconductor switch and a converter control system. The converter control system is configured to turn on the semiconductor switch, measure a first voltage and a current during reverse conduction, estimate junction temperature of the semiconductor device, turn off the semiconductor device, measure a second voltage after turning off the semiconductor device, determine a resistance value using the second voltage measurement, determine an expected resistance value, predict a failure of the semiconductor device using the resistance value and the expected resistance value, and transmit a semiconductor device failure warning.
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公开(公告)号：US20190033362A1
公开(公告)日：2019-01-31
申请号：US15659096
申请日：2017-07-25
Applicant: ABB Schweiz AG
Inventor： Eddy Aeloiza , Arun Kadavelugu , Joonas Puukko , Liming Liu , Jukka-Pekka Sjoroos
IPC: G01R31/26 , H01L29/16 , H01L29/78 , H03K17/687
CPC classification number: G01R31/2621 , G01R31/2642 , G01R31/2817 , H01L29/1608 , H01L29/7805 , H03K17/687
Abstract: Unique systems, methods, techniques and apparatuses of semiconductor failure prognostication. One exemplary embodiment is a power converter comprising a semiconductor switch and a converter control system. The converter control system is configured to turn on the semiconductor switch, measure a first voltage and a current during reverse conduction, estimate junction temperature of the semiconductor device, turn off the semiconductor device, measure a second voltage after turning off the semiconductor device, determine a resistance value using the second voltage measurement, determine an expected resistance value, predict a failure of the semiconductor device using the resistance value and the expected resistance value, and transmit a semiconductor device failure warning.
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