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公开(公告)号：US20240322668A1
公开(公告)日：2024-09-26
申请号：US18613616
申请日：2024-03-22
Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
CPC classification number: H02M1/0064 , H01F27/2804 , H01F27/38 , H02M3/33584 , H01F2027/2819
Abstract: An example power converter may include a planar transformer including a magnetic core, a primary winding, a first secondary winding interleaved with the primary winding, and a second secondary winding interleaved with the primary winding. The magnetic core may include a first core half, a second core half, multiple auxiliary legs formed by the first core half and the second core half, and multiple core legs formed by the first core half and the second core half. The multiple core legs may include a central core leg, and the primary winding may be wound around the central core leg among the two or more core legs. The planar transformer may be electrically coupled between a primary-side converter stage and a secondary-side converter stage.
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公开(公告)号：US20240258014A1
公开(公告)日：2024-08-01
申请号：US18565410
申请日：2022-06-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takayuki TANGE , Scott Andrew PARISH
CPC classification number: H01F27/2804 , H01F27/2852 , H01F41/041 , H01F2027/2809 , H01F2027/2819
Abstract: A device includes a substrate; a magnetic core in the substrate, including a hole, and divided into a first half and a second half opposite to the first half; a first winding extending through the hole and around the magnetic core; a second winding extending through the hole and around the magnetic core; and a third winding extending through the hole, around the magnetic core, and around a portion of the first winding. The first and the third windings only extend around the same half of the magnetic core. At least one first turn of the second winding extends around the second half of the magnetic core.
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公开(公告)号：US11916490B2
公开(公告)日：2024-02-27
申请号：US17376133
申请日：2021-07-14
Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.
Inventor： Yanbo Zou , Fada Du , Chao Tang , Wenjie Lin
CPC classification number: H02M3/33576 , H01F27/2804 , H01F2027/2819
Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.
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公开(公告)号：US11916489B2
公开(公告)日：2024-02-27
申请号：US17376129
申请日：2021-07-14
Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.
Inventor： Yanbo Zou , Fada Du , Chao Tang , Wenjie Lin
CPC classification number: H02M3/33576 , H01F27/24 , H01F27/2804 , H01F27/36 , H02M1/08 , H01F2027/2809 , H01F2027/2819
Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.
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公开(公告)号：US20230422400A1
公开(公告)日：2023-12-28
申请号：US18035614
申请日：2021-11-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takayuki TANGE , Neil STEPHENSON , Lee FRANCIS
CPC classification number: H05K1/165 , H01F27/266 , H01F27/2895 , H01F41/046 , H01F2027/2809 , H01F2027/2819 , H05K2201/086 , H05K3/4697
Abstract: A device includes a substrate including a cavity, a magnetic core in the cavity, a first winding extending around the magnetic core, and a single channel that extends between the cavity and an exterior of the device and that defines an opening. The first winding includes vias along an exterior periphery of the magnetic core opposite to the channel.
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Patent Agency Ranking
公开(公告)号：US20230396180A1
公开(公告)日：2023-12-07
申请号：US18328372
申请日：2023-06-02
Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
CPC classification number: H02M3/33592 , H01F27/38 , H02M1/0064 , H01F3/14 , H01F27/2804 , H01F2027/2819
Abstract: Power converters with current doubler rectifier output stages, current doubler rectifier output stages, and integrated transformers for current doubler rectifier output stages and related output stages are described. In one example, a power converter includes a switched bridged input stage and a current doubler rectifier output stage comprising an integrated transformer. The integrated transformer of the current doubler rectifier output stage includes magnetic cores. A primary winding and a secondary winding of the integrated transformer extend around each of the plurality of magnetic cores, and the integrated transformer further includes a coupling winding that extends around each of the plurality of magnetic cores to provide magnetic integration among the plurality of magnetic cores through an electrical coupling. The current doubler rectifier output stage relies upon magnetizing inductance of the integrated transformer to realize the function of inductors, and the integrated transformer current doubler rectifier does not include separate inductors.
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公开(公告)号：US11763976B2
公开(公告)日：2023-09-19
申请号：US16000492
申请日：2018-06-05
Applicant: ABB Power Electronics Inc.
Inventor： Ke Dai , Lanlan Yin , Tom Sun
IPC: H01F17/04 , H01F27/245 , H01F27/26 , H01F27/30 , H01F27/38 , H01F3/14 , H01F27/28 , H01F27/29 , H01F41/02 , H01F41/04
CPC classification number: H01F27/245 , H01F3/14 , H01F27/263 , H01F27/2804 , H01F27/29 , H01F27/306 , H01F27/38 , H01F41/0233 , H01F41/041 , H01F2027/2819
Abstract: An integrated magnetic core is provided. The integrated magnetic core includes a first plate and a second plate. The first plate includes a plurality of legs extending outwardly from a first surface of the first plate. The plurality of legs includes first and second oppositely disposed legs and third and fourth oppositely disposed legs. The second plate is coupled to at least the third and fourth legs of the first plate.
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公开(公告)号：US11728735B2
公开(公告)日：2023-08-15
申请号：US17085658
申请日：2020-10-30
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Dae Woo Lee , Byung Gu Kang , Tae Jong Ha
CPC classification number: H02M3/1588 , H01F27/2804 , H01F2027/2809 , H01F2027/2819
Abstract: A converter using a planar transformer includes an input device that receives a first voltage, a transformer including a first planar transformer and a second planar transformer that reduce the first voltage, and an output device that outputs the first voltage as a second voltage, wherein the first voltage is greater than the second voltage, and the input device provides a current to a primary winding coil of each of the first planar transformer and the second planar transformer through a first current path and a second current path in which current directions are different with each other, and includes a plurality of inductors connected in parallel with the primary winding coil of each of the first planar transformer and the second planar transformer.
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公开(公告)号：US11682518B2
公开(公告)日：2023-06-20
申请号：US16891268
申请日：2020-06-03
Applicant: Realtek Semiconductor Corporation
Inventor： Chieh-Pin Chang , Cheng-Wei Luo , Kai-Yi Huang , Ta-Hsun Yeh
CPC classification number: H01F27/2804 , H01F17/0013 , H01F27/29 , H01F2017/004 , H01F2017/0073 , H01F2027/2819
Abstract: An inductor device includes a first coil and a second coil. The first coil is wound into a plurality of first circles, and the second coil is wound into a plurality of second circles. At least two of the second circles are interlaced with at least two of the first circles on a first side. The at least two of the second circles are disposed adjacent to each other on the first side. At least one of the first circles is only interlaced with at least one of the second circles on a second side. At least another one of the first circles is only interlaced with at least another one of the second circles on the second side.
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公开(公告)号：US20190221350A1
公开(公告)日：2019-07-18
申请号：US16155058
申请日：2018-10-09
Applicant: Realtek Semiconductor Corporation
Inventor： Hsiao-Tsung YEN , Yuh-Sheng JEAN , Ta-Hsun YEH
CPC classification number: H01F27/006 , H01F27/2804 , H01F27/29 , H01F2027/2819 , H01L28/10
Abstract: An 8-shaped inductive coil device that includes a first and a second spiral coils and a connection segment structure is provided. The first spiral coil includes first metal segments and crossing connection segments disposed at a first and a second metal layers respectively and includes first connection terminals. The second spiral coil includes second connection terminals. The connection segment structure electrically couples the first and the second connection terminals. The first and the second spiral coils are disposed along an imaginary line passing through a central region of each of ranges surrounded by the first and the second spiral coils. The connection segment structure and the crossing connection segments electrically couple the part of the first metal segments substantially vertical to the imaginary line, and the connection segment structure and the crossing connection segments are disposed substantially on the imaginary line.
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