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公开(公告)号：US20240112849A1
公开(公告)日：2024-04-04
申请号：US18475559
申请日：2023-09-27
Applicant: ABB Schweiz AG
Inventor： Jedrzej Banaszczyk , Wojciech Piasecki , Michal Rzepecki , Filip Grecki , Uwe Drofenik
CPC classification number: H01F27/2823 , H01F27/288 , H01F27/325
Abstract: A transformer coil comprises low and high voltage windings wound on a supporting construction and immersed in a main insulation material. The transformer coil has also a first barrier arranged proximate the low voltage winding and a second barrier arranged proximate the high voltage winding. Each of the first and second barriers is gas-tight and semiconductive so that gas bubbles potentially released during immersion in the main insulation material are unable to migrate to a high electric field region during the casting process or during apparatus operation.
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公开(公告)号：US20230048596A1
公开(公告)日：2023-02-16
申请号：US17884723
申请日：2022-08-10
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales
IPC: H02M3/335
Abstract: A bi-directional medium voltage converter topology includes an n-pulse line-interphase-transformer, LIT; a plurality of bi-directional medium voltage, MV converters connected to the LIT on an AC side thereof and connected in parallel on a DC side thereof; a bi-directional multi-stage DC/DC converter connected to the plurality of bi-directional MV converters; and a bi-directional low voltage, LV, DC/DC converter; wherein the multi-stage DC/DC converter and the LV DC/DC converter are connected to each other galvanically insulated.
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公开(公告)号：US10797586B2
公开(公告)日：2020-10-06
申请号：US16663868
申请日：2019-10-25
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales , Chunlei Liu , Franziska Brem
IPC: H02M1/32 , H01L25/065 , H03K17/567 , H03K17/687
Abstract: A power module included a plurality of normally-on semiconductor switches based on a wide bandgap substrate, the normally-on semiconductor switches connected in parallel; and a balancing unit including a capacitor and a balancing semiconductor switch connected in series, which are connected in parallel to the normally-on semiconductor switches.
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公开(公告)号：US20200043642A1
公开(公告)日：2020-02-06
申请号：US16598155
申请日：2019-10-10
Applicant: ABB Schweiz AG
Inventor： Bernhard Wunsch , Uwe Drofenik , Stanislav Skibin , Gernot Riedel , Ville Samuel Forsstrom
Abstract: A multi-phase inductor includes a core made of a magnetic material; at least two phase windings surrounding the core for inducing a magnetic field in the core, such that a common mode inductance (LCM) is provided for the at least two phase windings; and an adjustment member made of a magnetic material, which adjustment member has at least two legs, which are interconnected with each other at an inner end and which are touching the core at an outer end to provide a differential mode inductance (LDM) for the at least two phase windings; wherein the outer end of each leg of the adjustment member overlays an axial side of the core and/or each leg of the adjustment member has a varying thickness between the inner end and the outer end to adjust the differential mode inductance (LDM).
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公开(公告)号：US12149178B2
公开(公告)日：2024-11-19
申请号：US17753961
申请日：2020-09-18
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Thomas Bernhard Gradinger , Francisco Canales
Abstract: A DC/DC converter which includes a first DC link, the first DC link can be a first DC link capacitor; a first plurality of N>1 converter bridges connected in parallel to the first DC link; and a transformer, the transformer can be a medium frequency transformer. The transformer includes a primary side and a secondary side, the primary side including at least one primary winding. The converter further includes a first plurality of N impedance elements, for each converter bridge, a respective impedance element of the first plurality of impedance elements is connected between the converter bridge and the at least one primary winding.
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Patent Agency Ranking
公开(公告)号：US12119750B2
公开(公告)日：2024-10-15
申请号：US17753963
申请日：2020-09-18
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Ki-Bum Park , Thomas Bernhard Gradinger
CPC classification number: H02M3/33523 , H02M1/0009 , H02M1/0058 , H02M3/01 , H02M3/015 , H02M3/33571 , H02M7/493
Abstract: A resonant DC/DC converter which has a first DC link, preferably including a first DC link capacitor; a DC/AC converter which has a first plurality of N>1 converter bridges connected in parallel to the first DC link; each converter bridge comprising a plurality of switches each of which may be switched between a conducting state and a non-conducting state. The resonant DC/DC converter also includes an AC intermediate circuit having an input connected to an output of the DC/AC converter and comprising: a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; the primary side comprising at least one primary winding; a first plurality of N capacitors, wherein for each converter bridge, a different one from the first plurality of capacitors is connected between said converter bridge and the at least one primary winding.
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公开(公告)号：US09826665B2
公开(公告)日：2017-11-21
申请号：US13770258
申请日：2013-02-19
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Till Huesgen , Andreas Ecklebe
IPC: H05K7/20
CPC classification number: H05K7/209 , H05K7/20518
Abstract: An electrical power circuit assembly includes a heat sink having a first surface portion and a second surface portion, a power semiconductor module being in thermal contact with the first surface portion of the heat sink for dissipating heat from the power semiconductor module to the heat sink via the first heat sink surface portion, and a capacitor having an axis. The capacitor is arranged with its axis essentially parallel to the second heat sink surface portion and with a circumferential surface portion being in thermal contact with the second surface portion of the heat sink for dissipating heat from the capacitor to the heat sink via the second heat sink surface portion.
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公开(公告)号：US20230050293A1
公开(公告)日：2023-02-16
申请号：US17977428
申请日：2022-10-31
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales , Ki-Bum Park
Abstract: A charging system for electric vehicles includes a line interphase transformer, LIT-based rectifier configured for connecting an input of the LIT-based rectifier to an AC medium-voltage power signal and for outputting a medium-voltage DC-signal; a modular DC/DC converter with large step-down gain is configured for transforming the medium-voltage DC-signal into a medium-voltage HF-AC-signal; and a medium-frequency transformer, MFT, is configured for transforming the medium-voltage HF-AC-signal into a low-voltage HF-AC-signal for the at least one charging box.
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公开(公告)号：US20230050057A1
公开(公告)日：2023-02-16
申请号：US17975724
申请日：2022-10-28
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Thomas Bernhard Gradinger , Francisco Canales , Gabriel Ignacio Ortiz , Ki-Bum Park , Daniel Rothmund , Levy Costa
Abstract: A power supply system includes a power feeding system for transforming an AC medium-voltage power signal from a medium-voltage grid into a low-voltage power signal for feeding an electricity consumer site. The power supply system further includes a low-voltage multiphase converter for transforming a low-voltage signal into a low-voltage multiphase signal. The multiphase converter is arranged antiparallel to the power feeding system, and an LV/MV multiphase transformer for transforming the low-voltage multiphase signal into an output-signal that is conformant to the AC medium-voltage power signal.
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公开(公告)号：US20230049948A1
公开(公告)日：2023-02-16
申请号：US17886286
申请日：2022-08-11
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales
Abstract: A LIT-based bi-directional medium voltage converter topology includes active medium voltage switches that comprise low voltage switches connected in series and/or switch-cells in a cascode-configuration.
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