公开(公告)号：US20240312702A1

公开(公告)日：2024-09-19

申请号：US18184824

申请日：2023-03-16

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Andrew E. Carlson ,  Randall S. Langer

IPC: H01F27/42 ,  H01F30/12 ,  H01F38/30

CPC classification number: H01F27/427 ,  H01F30/12 ,  H01F38/30

Abstract: The present technology relates to circuit breaker devices having current sense transformers. The current sense transformer includes a core, a secondary winding, and a primary winding coupled to the power input. The secondary winding includes a first wire wrapped around the core a number of secondary winding turns. The primary winding includes a second wire wrapped around the core a number of primary winding turns. The number of primary winding turns includes a first number of primary winding turns in a first direction and a second number of primary winding turns in an opposite direction that magnetically cancel out the second number of primary winding turns in the first direction to generate an effective number of primary winding turns. The effective number of primary winding turns and the number of secondary winding turns make up a desired turns ratio.

公开(公告)号：US20240274350A1

公开(公告)日：2024-08-15

申请号：US18644052

申请日：2024-04-23

Applicant: The Boeing Company

Inventor： Jian HUANG

IPC: H01F30/12 ,  H01F27/24 ,  H01F27/28 ,  H01F30/02 ,  H02M5/10 ,  H02M5/14 ,  H02M7/04 ,  H02M7/12

CPC classification number: H01F30/12 ,  H01F27/24 ,  H01F27/28 ,  H01F30/02 ,  H02M7/12 ,  H02M5/10 ,  H02M5/14 ,  H02M7/043

Abstract: An apparatus includes a primary transformer circuit including a plurality of primary coils. The apparatus further includes a delta secondary transformer circuit configured to magnetically couple to the primary transformer circuit. The delta secondary transformer circuit includes a first plurality of secondary coils, a first plurality of nodes coupled to the first plurality of secondary coils, and a second plurality of secondary coils configured to magnetically couple to the plurality of primary coils. Each coil of the second plurality of secondary coils is physically coupled to a respective node of the first plurality of nodes.

公开(公告)号：US20240177926A1

公开(公告)日：2024-05-30

申请号：US18522278

申请日：2023-11-29

Applicant: Delta Electronics (Thailand) Public Co., Ltd.

Inventor： Hugues NJIENDE ,  Ralf GRIEGER ,  Dieter HELDT

IPC: H01F30/12 ,  H01F3/14 ,  H01F27/24 ,  H01F27/30

CPC classification number: H01F30/12 ,  H01F3/14 ,  H01F27/24 ,  H01F27/306

Abstract: The present application concerns a transformer assembly, especially for an electric conversion device, including at least one rake-shaped core member each of the at least one rake-shaped core member including a body portion, at least three winding legs, and at least two return legs, wherein each of the at least three winding legs is wounded by at least one electrical winding and the at least three winding legs and the at least two return legs being connected magnetically to the body portion; wherein at least a first winding leg and at least a second winding leg form at least one winding leg pair, and at least a first electrical winding of the first winding leg is electrically connected in series with at least a second electrical winding. The present application also concerns an electric conversion device including at least one transformer assembly.

公开(公告)号：US11952651B2

公开(公告)日：2024-04-09

申请号：US17620284

申请日：2020-06-24

Applicant: PROTERIAL, LTD.

Inventor： Hajime Itagaki ,  Morifumi Kuroki ,  Makoto Sasaki ,  Shin Nakajima

IPC: C22C45/00 ,  B23K26/362 ,  C21D8/12 ,  C22C45/02 ,  H01F1/153 ,  H01F27/25 ,  H01F27/255 ,  H01F30/10 ,  H01F30/12

CPC classification number: C22C45/008 ,  B23K26/362 ,  C21D8/1294 ,  C22C45/02 ,  H01F1/15308 ,  H01F27/25 ,  H01F27/255 ,  H01F30/10 ,  H01F30/12

Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 μm2.

公开(公告)号：US11949348B2

公开(公告)日：2024-04-02

申请号：US17884008

申请日：2022-08-09

Applicant: ABB E-mobility B.V.

Inventor： Uwe Drofenik ,  Francisco Canales ,  Daniel Rothmund

IPC: H02M7/797 ,  H02M7/493 ,  H02M7/757 ,  H01F30/12 ,  H02J3/38

CPC classification number: H02M7/797 ,  H02M7/493 ,  H02M7/757 ,  H01F30/12 ,  H02J3/381

Abstract: A multi-pulse line-interphase transformer converter includes an electric part that includes magnetic components configured to be connected to a three-phase AC grid, and an electric part that includes a multi-phase voltage system configured to be connected to a common DC capacitor. The electric part splits each AC grid phase n times into two phases, resulting in a plurality of intermediate phases at an internal interface, each intermediate phase corresponding to a pulse of the multi-pulse line-interphase transformer converter. The intermediate phases are connected to the multi-phase voltage system. The multi-phase voltage system comprises bridges with actively controlled switches. The bridges are connected in parallel to the common DC capacitor.

公开(公告)号：US11749454B2

公开(公告)日：2023-09-05

申请号：US16397237

申请日：2019-04-29

Applicant: Infineon Technologies Austria AG

Inventor： Roberto Rizzolatti ,  Christian Rainer ,  Otto Wiedenbauer

IPC: H01F30/02 ,  H01F27/26 ,  H01F27/30 ,  H01F30/12 ,  H02M3/00

CPC classification number: H01F30/02 ,  H01F27/266 ,  H01F27/306 ,  H01F30/12 ,  H02M3/01

Abstract: An apparatus comprises: first windings, second windings, a magnetic core, and multiple tap nodes. The first windings are primary windings of a multi-tapped autotransformer. The second windings are secondary windings of the multi-tapped autotransformer. The first windings and the second windings are wrapped around the magnetic core, the second windings disposed in a series connection between the first windings. The multiple tap nodes providing coupling of the first windings and the second windings to a power supply circuit such as a switched-capacitor converter.

公开(公告)号：US20190115139A1

公开(公告)日：2019-04-18

申请号：US15994007

申请日：2018-05-31

Applicant: Delta Electronics, Inc.

Inventor： Tsung-Nan KUO ,  Lei-Chung HSING

IPC: H01F27/245 ,  H01F3/14 ,  H01F27/30 ,  H01F30/12 ,  H02K3/28

CPC classification number: H01F27/245 ,  H01F3/10 ,  H01F3/14 ,  H01F27/306 ,  H01F27/38 ,  H01F30/12 ,  H01F37/00 ,  H01F2003/106 ,  H01F2017/0093 ,  H02K3/28

Abstract: An integrated magnetic element is provided, including a first magnetic-core frame, three second magnetic-core frames, and three coil windings. The first magnetic-core frame has a first side pillar and a second side pillar opposite to the first side pillar. The three second magnetic-core frames are arranged on the side corresponding to the first side pillar of the first magnetic-core frame, and are arranged in parallel with the axis of the first side pillar of the first magnetic-core frame. Each of the second magnetic-core frames has a first side pillar adjacent to the first side pillar of the first magnetic-core frame, and a second side pillar opposite to the first side pillar of itself. The three coil windings connect to a three-phase grid, and wind around the first side pillar of the first magnetic-core frame and the corresponding first side pillar of the second magnetic-core frame respectively.

公开(公告)号：US20190077270A1

公开(公告)日：2019-03-14

申请号：US16084088

申请日：2017-12-11

Applicant: ABB Schweiz AG

Inventor： Carlos Nieto ,  Danel Turk

IPC: H02J7/02 ,  H01F30/12

CPC classification number: H01F30/12 ,  B60L1/00 ,  B60L53/14 ,  B60L53/22 ,  B60L53/53 ,  B60L2210/20 ,  B60L2210/30 ,  H02J7/022 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/12 ,  Y02T90/127 ,  Y02T90/14

Abstract: The present disclosure relates to an electric vehicle charging station including a transformer. The transformer is a multi-winding transformer including one primary winding and a plurality of secondary windings. The secondary windings are electrically isolated from one another. The electric vehicle charging station further includes an AC/DC converter to which a secondary winding is connected.

公开(公告)号：US20180061560A1

公开(公告)日：2018-03-01

申请号：US15251171

申请日：2016-08-30

Applicant: Astec International Limited

Inventor： Matthias WUKOVITS ,  Edin RAMIC ,  Klaus RIEDMUELLER ,  Michele NOBILE

IPC: H01F27/34 ,  H01F27/28 ,  H01F27/24 ,  H01F30/12 ,  H02M3/24 ,  H02M1/00

CPC classification number: H01F27/34 ,  H01F27/24 ,  H01F27/2876 ,  H01F30/12 ,  H02M1/00 ,  H02M3/24 ,  H02M3/285 ,  H02M2001/0048 ,  H02M2001/0064 ,  Y02B70/1491

Abstract: A multiphase DC/DC power converter includes a magnetic core having a plurality of core sections and defining a plurality of magnetic flux paths, and a plurality of winding including a plurality of transformer winding sets and a plurality of inductor windings. Each transformer winding set includes a primary winding and a secondary winding wound about at least one core section of the plurality of core sections. Each inductor winding is wound about another core section of the plurality of core sections. Magnetic flux generated by one transformer winding set of the plurality of transformer winding sets substantially cancels magnetic flux generated by at least one adjacent transformer winding set of the plurality of transformer winding sets. Magnetic flux generated by one inductor winding of the plurality of inductor windings substantially cancels magnetic flux generated by at least one adjacent inductor winding of the plurality of inductor windings.

公开(公告)号：US20170301450A1

公开(公告)日：2017-10-19

申请号：US15641518

申请日：2017-07-05

Applicant: Fuji Electric Co., Ltd.

Inventor： Kiyoshi TAKAHASHI

IPC: H01F27/08 ,  H01F30/12

CPC classification number: H01F27/085 ,  H01F27/28 ,  H01F27/2876 ,  H01F30/12

Abstract: A coil device with a cooling structure includes: a coil unit that has a core structure having one or more leg parts and one or more coils wound around the one or more leg parts; and a flow-rectifying member having a flat plate portion covering a face of the one or more coils and flow-rectifying ribs inwardly protruding from an inner surface of the flat plate portion, the flow-rectifying ribs extending in a direction parallel to center axes of the one or more coils and being positioned to face side boundaries of the face of the one or more coils. The flat plate portion and the flow-rectifying ribs form a first air cooling channel at a substantially uniform gap outside of the one or more coils along the direction parallel to the center axes thereof, the first air cooling channel passing cooling air to air-cool the one or more coils.