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1. 发明申请

US20180323709A1 COUPLED INDUCTOR IN A DC-DC CONVERTER 审中-公开
公开(公告)号：US20180323709A1
公开(公告)日：2018-11-08
申请号：US15971282
申请日：2018-05-04
申请人： LEN Technology Limited
发明人： Jingquan Chen , Chuan Ni
IPC分类号： H02M3/155 , H02J1/10
CPC分类号： H02M3/155 , H01F3/12 , H01F27/006 , H01F27/2823 , H01F37/00 , H02J1/102 , H02M3/1584 , H02M2001/0019 , H02M2001/0064
摘要： This disclosure is related to the technical field of magnets, and in particular to a method for applying a coupled inductor to a DC-DC converter providing a DC current output, and based on the number of phases of the DC-DC converter, the coupled inductor is designed to have a corresponding number of windings, the windings are reversely coupled to cancel out the magnetizing fields to avoid flux saturation of the magnet material under high current excitation, and the coupled inductor has air gaps, the leakage flux in the air gap induced by each winding is in the same direction, the leakage magnetic flux is used to achieve the filtering of the output current.

2. 发明申请

US20180068785A1 STATIONARY INDUCTION ELECTRICAL APPARATUS 审中-公开
公开(公告)号：US20180068785A1
公开(公告)日：2018-03-08
申请号：US15683104
申请日：2017-08-22
申请人： HITACHI, LTD.
发明人： Youichirou YAMADA , Akira NISHIMIZU , Yoshio HAMADATE , Akira YAMAGISHI
IPC分类号： H01F30/12 , H01F3/12 , H01F3/14
CPC分类号： H01F30/12 , H01F3/02 , H01F3/12 , H01F3/14 , H01F38/08
摘要： To provide a safe stationary induction electrical apparatus that prevents a fragment coming off a magnetic shield, wound around an iron core leg portion of the stationary induction electrical apparatus, due to vibrations from being released in a tank accommodating the stationary induction electrical apparatus and thus prevents a trouble such as dielectric breakdown. Moreover, to provide a stationary induction electrical apparatus that does not need to be changed in the dimensions of an iron core for securing an insulation distance due to the placement of a magnetic shield and can reduce a compressive force generated in a winding. A magnetic material is provided in the interiors of insulating members whose interiors are hollow and which are provided in the vicinities of upper and lower ends of the winding wound around the iron core leg portion of the stationary induction electrical apparatus.

3. 发明申请

US20170309382A1 Coupled Inductors With Non-Uniform Winding Terminal Distributions 审中-公开
公开(公告)号：US20170309382A1
公开(公告)日：2017-10-26
申请号：US15645211
申请日：2017-07-10
申请人： Volterra Semiconductor LLC
发明人： Alexandr Ikriannikov
IPC分类号： H01F3/12 , H01F17/04 , H01F30/12 , H02M3/158
CPC分类号： H01F3/12 , H01F17/04 , H01F30/12 , H02M3/1584
摘要： A coupled inductor includes a ladder magnetic core including two opposing rails extending in a lengthwise direction and joined by a plurality of rungs. The coupled inductor further includes a respective winding wound around each of the plurality of rungs. The plurality of rungs are divided into at least two groups of rungs, and a lengthwise separation distance between adjacent rungs in each group of rungs is less than a lengthwise separation distance between adjacent rungs of different groups of rungs.

4. 发明授权

US09660546B2 Coil structure and power converter 有权
公开(公告)号：US09660546B2
公开(公告)日：2017-05-23
申请号：US14636995
申请日：2015-03-03
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Akira Kato , Kazuyuki Sakiyama , Hirohide Ichihashi
IPC分类号： H01F27/00 , H02M7/04 , H01F3/12 , H01F27/38
CPC分类号： H02M7/04 , H01F3/12 , H01F27/00 , H01F27/38
摘要： A coil structure includes: a magnetic core that defines a closed loop magnetic path in which a magnetic flux flows, the magnetic core including a core leg; a coil that is wound around the core leg about a coil axis extending in a first direction, the coil generating the magnetic flux; a detour member that is separate from the magnetic core, the detour member defining a detour magnetic path that detours around the closed loop magnetic path between first and second points, the detour member including a first piece that defines the first point and a second piece that defines the second point; and a fixing portion that includes an adjoining member adjoining the core leg and a connecting portion connecting at least one of the first piece and the second piece to the adjoining member and fixes positional relations among the core leg and the first and second points.

5. 发明授权

US09472329B2 High leakage transformers with tape wound cores 有权
标题翻译：带磁带绕芯的高漏电变压器
公开(公告)号：US09472329B2
公开(公告)日：2016-10-18
申请号：US13586567
申请日：2012-08-15
申请人： Bruce W. Carsten
发明人： Bruce W. Carsten
IPC分类号： H01F21/08 , H01F17/06 , H01F27/24 , H01F3/12
CPC分类号： H01F3/12 , H01F27/25
摘要： A high leakage inductance transformer core device, and method of forming same, that has a core made of tape wound material, at least one set of concentric primary and secondary windings, and at least one flux shunt between the primary and secondary windings which is also made of tape wound material. The transformer core and flux shunts are arranged so that the transformer has a low external magnetic field, and substantially no excess core losses due to principal core flux flowing from one part of the core structure to another through the broad surface of the core tape.
摘要翻译：具有由磁带缠绕材料制成的芯，至少一组同心的初级和次级绕组以及初级和次级绕组之间的至少一个磁通分流的高漏感电感变压器磁芯装置及其形成方法，其也是由磁带缠绕材料制成。变压器铁芯和磁通分流器被布置成使得变压器具有低的外部磁场，并且由于主芯磁通从芯结构的一部分流过另一个芯芯带的宽表面而基本上没有过多的磁芯损耗。

6. 发明申请

US20160196914A1 METHOD OF MANUFACTURING AN ELECTRONIC COMPONENT 审中-公开
标题翻译：制造电子元件的方法
公开(公告)号：US20160196914A1
公开(公告)日：2016-07-07
申请号：US15067375
申请日：2016-03-11
申请人： Coilcraft, Incorporated
发明人： Andrzej Klesyk , Scott D. Hess , Lawrence B. Lestarge
IPC分类号： H01F27/04 , H01F27/28 , H01F27/24 , H01F27/29
CPC分类号： H01F27/04 , H01F3/12 , H01F27/027 , H01F27/24 , H01F27/255 , H01F27/2823 , H01F27/29 , H01F27/292 , H01F41/10 , H01F2017/046 , Y10T29/49071
摘要： An electronic component includes a wire winding wound around a central axis. The wire winding having first and second ends, and first and second terminals are connected to or formed by the first and second ends. The terminals provide electrical contacts for connecting the component into a circuit. The component has a wet press molded body made of a mixture of magnetic and non-magnetic material that is heated and pressed about the wire winding. The wet press molded body leaves at least a portion of the terminals exposed for mounting the component to the circuit.
摘要翻译：电子部件包括缠绕在中心轴线上的线绕组。具有第一和第二端的线绕组以及第一和第二端子连接到第一端和第二端，或者由第一端和第二端形成。端子提供用于将部件连接到电路中的电触头。该部件具有由磁性和非磁性材料的混合物制成的湿压成型体，其被加热并围绕线绕加压。湿压成型体离开暴露的端子的至少一部分以将部件安装到电路。

7. 发明申请

US20160155551A1 Coupled Inductors With Non-Uniform Winding Terminal Distributions 有权
标题翻译：具有不均匀绕组端子分布的耦合电感器
公开(公告)号：US20160155551A1
公开(公告)日：2016-06-02
申请号：US15018318
申请日：2016-02-08
申请人： Volterra Semiconductor LLC
发明人： Alexandr Ikriannikov
IPC分类号： H01F3/12
CPC分类号： H01F3/12 , H01F17/04 , H01F30/12 , H02M3/1584
摘要： A coupled inductor includes a ladder magnetic core including two opposing rails extending in a lengthwise direction and joined by a plurality of rungs. The coupled inductor further includes a respective winding wound around each of the plurality of rungs. The plurality of rungs are divided into at least two groups of rungs, and a lengthwise separation distance between adjacent rungs in each group of rungs is less than a lengthwise separation distance between adjacent rungs of different groups of rungs.
摘要翻译：耦合电感器包括梯形磁芯，该梯形磁芯包括沿长度方向延伸并由多个梯级连接的两个相对的轨道。耦合电感器还包括卷绕在多个梯级中的每一个上的各个绕组。多个梯级被分成至少两组梯级，并且每组梯级中的相邻梯级之间的纵向间隔距离小于不同组的梯级的相邻梯级之间的纵向间隔距离。

8. 发明授权

US09019061B2 Magnetic device formed with U-shaped core pieces and power converter employing the same 有权
标题翻译：磁性装置由U形芯片和使用该U形芯片的功率转换器构成
公开(公告)号：US09019061B2
公开(公告)日：2015-04-28
申请号：US12751650
申请日：2010-03-31
申请人： Sriram Chandrasekaran
发明人： Sriram Chandrasekaran
IPC分类号： H01F27/24 , H01F27/28 , H01F17/06 , H01F7/06 , H01F3/10 , H01F30/06 , H01F37/00 , H01F41/02 , H02M1/42 , H01F3/12 , H01F3/14 , H01F27/26 , H01F38/02 , H02M3/158
CPC分类号： H01F3/10 , H01F3/12 , H01F3/14 , H01F27/263 , H01F30/06 , H01F37/00 , H01F41/02 , H01F2038/026 , H02M1/4208 , H02M3/1582 , H02M2003/1586 , Y02B70/126 , Y10T29/4902
摘要： A magnetic device formed with U-shaped core pieces employable in a power converter, and a method of forming the same. In one embodiment, the magnetic device includes a rectilinear core piece formed of a magnetic material, and first and second U-shaped core pieces positioned on the rectilinear core piece. The magnetic device also includes first and second conductive windings formed about the first and second U-shaped core pieces, respectively.
摘要翻译：形成有可用于功率转换器中的U形芯片的磁性器件及其形成方法。在一个实施例中，磁性装置包括由磁性材料形成的直线芯片件和位于直线芯片上的第一和第二U形铁心片。磁性装置还包括分别围绕第一和第二U形芯片形成的第一和第二导电绕组。

9. 发明授权

US08576036B2 System and method for affecting flux of multi-pole magnetic structures 失效
公开(公告)号：US08576036B2
公开(公告)日：2013-11-05
申请号：US13374074
申请日：2011-12-09
申请人： Larry W. Fullerton , Mark D. Roberts
发明人： Larry W. Fullerton , Mark D. Roberts
IPC分类号： H01F7/02
CPC分类号： H05K9/00 , H01F3/12 , H01F7/0205
摘要： A shunt plate is provided that is associated with a first side of a multi-pole magnetic structure. The shunt plate provides a magnetic short between opposite polarity magnetic sources on the first side of said magnetic structure, the magnetic short causing a magnetic flux of said opposite polarity magnetic sources to be routed from said first side of the magnetic structure through said magnetic structure to the second side of said magnetic structure. The thickness of the shunt plate is selected by determining the integrated flux across a magnetic source of the magnetic structure such that the corresponding flux density in the shunt plate does not substantially exceed the flux density saturation level of a cross section of the shunt plate.

10. 发明申请

US20130285786A1 CURRENT TRANSFORMER FOR SUPPLYING POWER TO ELECTRONIC CONTROLLER 有权
标题翻译：用于向电子控制器供电的电流互感器
公开(公告)号：US20130285786A1
公开(公告)日：2013-10-31
申请号：US13978289
申请日：2011-09-15
申请人： Yinglong Hu , Zeliang Xu
发明人： Yinglong Hu , Zeliang Xu
IPC分类号： H01F27/24
CPC分类号： H01F27/24 , H01F3/12 , H01F38/30
摘要： A current transformer supplying a power for an electronic controller comprises two independent core magnetic circuits, wherein a first core magnetic circuit is a closed loop formed by connecting a U-shaped core and a linear core, a primary conductor extends through the closed loop, and a secondary winding for power supply is wound on the linear core; a second core magnetic circuit having an opening shape is disposed in parallel to the linear core of the first core magnetic circuit, and the open end of the second core magnetic circuit is coupled to the first core magnetic circuit through air gaps. The area of the cross section of the linear core is less than that of the cross section of the U-shaped core, so that the linear core can be magnetically saturated earlier than the U-shaped core. The centerline length of the U-shaped core is 1.5 to 4 times of that of the linear core. The current transformer of the present invention can not only normally start and work in case that a primary current is far lower than a rated current In, but also achieve the purpose of inhibiting rapid increase of an output current of the secondary windings and smoothing the output current in case that the primary current is far more than the rated current In.
摘要翻译：为电子控制器提供电力的电流互感器包括两个独立的核心磁路，其中第一磁芯磁路是通过连接U形磁芯和线性磁芯而形成的闭环，主导体延伸穿过闭环，以及用于电源的次级绕组缠绕在线芯上; 具有开口形状的第二磁芯磁路与第一磁芯磁路的线性磁芯平行设置，第二磁芯磁路的开路端通过气隙与第一磁芯磁路相连。线芯的横截面面积小于U形芯的横截面面积，因此线性芯可以比U型芯早期磁饱和。 U形芯的中心线长度为线芯的1.5〜4倍。本发明的电流互感器不仅能够在初级电流远小于额定电流In的情况下正常启动和工作，而且还达到抑制次级绕组的输出电流的快速增加和平滑输出的目的初级电流远大于额定电流In时的电流。

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