公开(公告)号：US10008317B2

公开(公告)日：2018-06-26

申请号：US15069785

申请日：2016-03-14

Applicant: Smart Wires Inc.

Inventor： Amrit Iyer ,  Debrup Das ,  David Munguia ,  Arthur Kelley ,  Haroon Inam ,  Joe Carrow ,  Ali Farahani

IPC: H01F27/06

CPC classification number: H01F27/06 ,  H01F30/04 ,  H01F30/16 ,  H02J3/1807 ,  H02J3/20 ,  H02J3/26 ,  Y02E40/30 ,  Y02E40/50

Abstract: This patent discloses an active impedance-injection module for dynamic line balancing of a high-voltage (HV) transmission line. The impedance-injection module comprises a plurality of transformers each having a primary winding in series with a HV transmission line. Each transformer also has secondary windings, each connected to an individual electronic converter. The plurality of secondary windings are electrically isolated from the associated primary winding and extract power from the HV transmission line for operation of the converters and other circuits connected to the secondary windings. The active impedance-injection module is enabled to generate a controlled impedance, inductive or capacitive, to be impressed on the HV transmission line. A plurality of active impedance-injection modules spatially distributed on a HV transmission line are enabled to inject a controlled cumulative impedance on a HV transmission line while limiting the capacity of individual converters to that achievable with practical electronic components.

公开(公告)号：US20180013354A1

公开(公告)日：2018-01-11

申请号：US15202033

申请日：2016-07-05

Applicant: TAMURA CORPORATION

Inventor： Hiroo OGAWA

IPC: H02M3/335 ,  H01F27/32

CPC classification number: H01F27/325 ,  G05F1/10 ,  H01F3/14 ,  H01F27/38 ,  H01F30/04 ,  H02M3/28

Abstract: A transformer is capable of suppressing the output voltage difference, and a switched-mode power supply apparatus uses the transformer. A transformer has a core; a primary winding provided in the core; a gap provided in the core at a location where the primary winding is provided; and at least two secondary windings, provided in the core and spaced apart from both sides of the primary winding as well as the gap at an equal distance in a winding axis direction of the primary winding. A switched-mode power supply apparatus has the transformer; a switching element connected to the primary winding of the transformer; and a control circuit configured to control the switching element.

公开(公告)号：US20180013350A1

公开(公告)日：2018-01-11

申请号：US15202260

申请日：2016-07-05

Applicant: TAMURA CORPORATION

Inventor： Hiroo OGAWA

IPC: H02M3/335 ,  H01F27/29

CPC classification number: H01F27/38 ,  H01F3/14 ,  H01F30/04 ,  H01F2003/005 ,  H01F2005/027 ,  H02M3/33507 ,  H02M3/33523 ,  H02M3/33561

Abstract: A transformer being capable of reducing cross regulation even in a case where the load is unbalanced and a switched-mode power supply apparatus using the transformer are provided. A transformer T has a core; a primary winding provided in the core; at least two secondary windings provided in the core around a winding axis which is the same as a winding axis of the primary winding; and at least two auxiliary windings provided in the core around a winding axis which is the same as the winding axis of the primary winding; respectively neighboring the secondary windings; and connected in parallel to each other. A switched-mode power supply apparatus has the transformer T; a switching element connected to the primary winding of the transformer T; and a control circuit configured to control the switching element.

公开(公告)号：US09743472B2

公开(公告)日：2017-08-22

申请号：US13836337

申请日：2013-03-15

Applicant: City University of Hong Kong

Inventor： Shu Hung Henry Chung ,  Ruihong Zhang

IPC: H05B33/08 ,  H01F38/00 ,  H01F30/04 ,  H02J3/00

CPC classification number: H05B33/0821 ,  H01F30/04 ,  H02J3/00 ,  Y10T307/25 ,  Y10T307/297

Abstract: An electrical load driving apparatus, comprising a current distribution apparatus having a power source arranged to deliver an input current into a plurality of branches such that the input current is distributed into a plurality of individual branch currents, wherein each of the plurality of branches includes an inductive arrangement arranged to form an inductive coupling with an associated inductive arrangement of at least one other associated branch, and a plurality of output loads connect to each of the associated branches of the current distribution apparatus.

公开(公告)号：US09723661B2

公开(公告)日：2017-08-01

申请号：US15096317

申请日：2016-04-12

Applicant: GE Lighting Solutions, LLC

Inventor： Eric Lavigne ,  Mohamed Cherif Ghanem ,  Francois Giguere

IPC: H05B41/16 ,  H05B33/08 ,  H01F30/04 ,  H02M5/10

CPC classification number: H05B33/0809 ,  H01F30/04 ,  H02M5/10

Abstract: An LED driver circuit includes a primary circuit and a circuit electrically isolated from the primary circuit, a transformer having a primary winding configured to receive power from an alternating current source and to generate power in a first secondary winding configured to provide power to the electrically isolated circuit, and to generate power in a second secondary winding configured to provide power to the primary circuit, and a conductor connected to an end of the first secondary winding and configured to connect a winding driver signal to the first secondary winding to generate power in the second secondary winding.

公开(公告)号：US09576723B2

公开(公告)日：2017-02-21

申请号：US14590696

申请日：2015-01-06

Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

Inventor： David Scott MacLennan ,  Mariana Wentzell

IPC: H02G3/22 ,  H01F27/32 ,  H01F27/06 ,  H01F38/28

CPC classification number: H01F27/324 ,  H01F27/06 ,  H01F30/04 ,  H01F38/28 ,  H01F2038/305 ,  H03K2217/0081 ,  Y10T16/05

Abstract: The present invention relates generally to systems and methods for isolating a current loop conductor of a current loop system of a pre-charge circuit from a plurality of current transformers disposed around the current loop conductor. In particular, the embodiments described herein include an insulating support flange having a first tubular section, a second tubular section radially disposed around the first tubular section and connected to the first tubular section via a solid annular section extending radially outward from the first tubular section to a first end of the second tubular section, an annular base extending radially outward from a second end of the second tubular section, and a plurality of prongs extending axially from or near to an outer circumference of the annular base, wherein each of the prongs comprises an end face that is angled toward the second tubular section. The insulating support flanges are configured to mate with each other along an axial direction of the current loop conductor. In addition, each of the plurality of current transformers is installed (i.e., held in place) between the prongs, annular base, and second annular section of its respective insulating support flange. As such, a fixed open air space between the first and second annular sections of the insulating support flanges isolates the current transformers from the current loop conductor, thereby reducing the possibility of discharge between the current transformers and the current loop conductor.

Abstract translation: 本发明一般涉及用于将预充电电路的电流回路系统的电流回路导体与设置在电流回路导体周围的多个电流互感器隔离的系统和方法。 特别地，本文所述的实施例包括具有第一管状部分的绝缘支撑凸缘，围绕第一管状部分径向设置的第二管状部分，并且经由从第一管状部分径向向外延伸的固体环形部分连接到第一管状部分 所述第二管状部分的第一端部，从所述第二管状部分的第二端径向向外延伸的环形基部以及从所述环形基部的外圆周或从其附近轴向延伸的多个尖头，其中每个所述插脚包括 端面朝向第二管状部分成角度。 绝缘支撑凸缘构造成沿着电流回路导体的轴向彼此配合。 此外，多个电流互感器中的每一个都安装在其相应绝缘支撑凸缘的插脚，环形基座和第二环形部分之间（即保持就位）。 这样，绝缘支撑凸缘的第一和第二环形部分之间的固定露天空间将电流互感器与电流环路导体隔离，从而减小了电流互感器与电流环路导体之间放电的可能性。

公开(公告)号：US09343994B2

公开(公告)日：2016-05-17

申请号：US14368673

申请日：2012-01-18

Applicant: Yasuhiko Hosokawa

Inventor： Yasuhiko Hosokawa

IPC: H02M7/19 ,  H02M7/04 ,  H01F30/04 ,  H02M7/49 ,  H02M7/483

CPC classification number: H02M7/04 ,  H01F30/04 ,  H02M7/49 ,  H02M2007/4835

Abstract: A power conversion apparatus including a three-phase transformer interconnected to a three-phase power system, the three-phase transformer including a primary winding group that receives three-phase electric power of the three-phase electric power system, a first secondary winding group and a second secondary winding group that receive electric power transferred from the primary winding group, and a first converter group and a second converter group connected to the first and second secondary winding groups, respectively, the power conversion apparatus further including a DC output terminal group connected to at least one of other ends of the first to third converter arms provided in the first converter group, and connected to at least one of other ends of the fourth to sixth converter arms provided in the second converter group.

Abstract translation: 一种电力转换装置，包括互连到三相电力系统的三相变压器，所述三相变压器包括接收所述三相电力系统的三相电力的初级绕组组，第一次级绕组组 以及第二次级绕组，其分别接收从初级绕组组传递的电力，以及分别连接到第一和第二次级绕组组的第一转换器组和第二转换器组，该电力转换装置还包括直流输出端子组 连接到设置在第一转换器组中的第一至第三转换器臂的至少一个端部，并连接到设置在第二转换器组中的第四至第六转换器臂的至少一个端部。

公开(公告)号：US09336943B2

公开(公告)日：2016-05-10

申请号：US14326502

申请日：2014-07-09

Applicant: Delta Electronics (Shanghai) Co., Ltd.

Inventor： Jiang Chu ,  Wei Zhang ,  Zhi Huang

IPC: H01F27/28 ,  H01F27/08 ,  H01F27/10 ,  H01F27/02 ,  H01F21/08 ,  H01F30/04 ,  H01F27/00 ,  H01F27/34 ,  H01F27/32

CPC classification number: H01F30/04 ,  H01F27/006 ,  H01F27/08 ,  H01F27/28 ,  H01F27/2876 ,  H01F27/322 ,  H01F27/323 ,  H01F27/34

Abstract: A transformer includes a magnetic core, a primary winding, and a plurality of secondary windings. The magnetic core has an axial and a radial direction. The primary winding includes a plurality of winding sections and at least one connecting section. The winding sections are arranged along the axial direction. The connecting section is connected between the two adjacent winding sections. Each of the winding sections includes a plurality of primary winding layers and pull-out portions. The primary winding layers surround the magnetic core and are arranged along the radial direction. One pull-out portion connects two primary winding layers adjacent to the pull-out portion. Part of normal projections of the primary winding layers on a surface of the magnetic core are located between normal projections of the pull-out portions on the surface of the magnetic core. The secondary windings surround the primary winding.

公开(公告)号：US20140265884A1

公开(公告)日：2014-09-18

申请号：US13836337

申请日：2013-03-15

Applicant: City University of Hong Kong

Inventor： Shu Hung Henry Chung ,  Ruihong Zhang

IPC: H05B33/08

CPC classification number: H05B33/0821 ,  H01F30/04 ,  H02J3/00 ,  Y10T307/25 ,  Y10T307/297

Abstract: An electrical load driving apparatus, comprising a current distribution apparatus having a power source arranged to deliver an input current into a plurality of branches such that the input current is distributed into a plurality of individual branch currents, wherein each of the plurality of branches includes an inductive arrangement arranged to form an inductive coupling with an associated inductive arrangement of at least one other associated branch, and a plurality of output loads connect to each of the associated branches of the current distribution apparatus.

Abstract translation: 一种电气负载驱动装置，包括具有电源的电流分配装置，电源被布置成将输入电流输送到多个分支，使得输入电流分配到多个分支电流，其中多个分支中的每一个包括 感应布置被布置成与至少一个其他相关联的分支的相关联的感应布置形成感应耦合，并且多个输出负载连接到当前分配装置的每个相关联的分支。

公开(公告)号：US20140204632A1

公开(公告)日：2014-07-24

申请号：US14162455

申请日：2014-01-23

Applicant: DET International Holding Limited

Inventor： Kilian NOETZOLD ,  Michael BRAGARD ,  Karsten FINK ,  Richard GRIESSEL ,  Ralf WEGENER

IPC: H02M5/458

CPC classification number: H02M7/49 ,  H01F30/04 ,  H02P2101/15

Abstract: In a converter for converting energy from a generator to a power network, wherein the converter comprises multiple power modules, wherein each power module includes at least two power cells and a transformer for connecting the power cells to the power network, wherein each power cell includes a phase input, a phase output, a transformer output connected to the transformer, a rectifier circuit and an inverter, the transformer (T) of a power module (4.1, . . . , 4.n) includes one generator-side winding (10) for each of the power cells (5) and exactly one common grid-side winding for balancing an energy flow through the power cells (5) of a power module (4.1, . . . , 4.n).

Abstract translation: 在用于将来自发电机的能量转换成电力网络的转换器中，其中所述转换器包括多个功率模块，其中每个功率模块包括至少两个功率单元和用于将功率单元连接到电力网络的变压器，其中每个功率单元包括 相位输入，相位输出，连接到变压器的变压器输出，整流器电路和逆变器，功率模块（4.1，...，4.n）的变压器（T）包括一个发电机侧绕组 10）和用于平衡通过功率模块（4.1，...，4.n）的功率单元（5）的能量流的正好一个共同的电网侧绕组。