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公开(公告)号：US20240250602A1
公开(公告)日：2024-07-25
申请号：US18596214
申请日：2024-03-05
Applicant: Rompower Technology Holdings, LLC
Inventor： Ionel Jitaru
CPC classification number: H02M1/083 , H02M1/4258 , H02M3/155 , H02M3/335 , H02M3/33553 , H02M3/33592 , H01F38/42 , H02M1/0058 , H02M1/342 , Y02B70/10
Abstract: A switching power conversion apparatus for converting power from an input voltage source to a load includes first and second switches connected to a switching node. An inductive element has a magnetizing current connected to the node, and the inductive element is connected to deliver energy via the first and second switches from the input voltage to the load during a succession of power conversion cycles. A capacitance connected to the node resonates with the inductive element to cause parasitic oscillation. A clamp subcircuit across the inductive element contains an auxiliary switch to trap energy and prevent parasitic oscillation, wherein the auxiliary switch is complementary to the first switch. A controlled voltage source injects energy in the inductive element, when the auxiliary switch turns off to discharge the parasitic capacitance by using trapped energy in the inductive element in addition to injected energy from the controlled voltage source.
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公开(公告)号：US20240145163A1
公开(公告)日：2024-05-02
申请号：US18382360
申请日：2023-10-20
Applicant: GaNrich Semiconductor Corporation
Inventor： Chiao FU , Yi-Chao LIN , Yao-Zhong LIU , Jia-Tay KUO
CPC classification number: H01F27/325 , H01F27/36 , H01F38/42
Abstract: A transformer includes a bobbin and a plurality of coils wound on the bobbin. The plurality of coils includes a first primary coil; a second primary coil, located above the first primary coil and electrically connected to the first primary coil; a secondary coil, located between the first primary coil and the second primary; a first auxiliary coil, located above the second primary coil; and a second auxiliary coil, located on the first auxiliary coil and electrically connected to the first auxiliary coil. A turn number of the first auxiliary coil is greater than a turn number of the second auxi
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公开(公告)号：US11973349B2
公开(公告)日：2024-04-30
申请号：US17374297
申请日：2021-07-13
Applicant: SUNGROW POWER SUPPLY CO., LTD.
Inventor： Yanfei Yu , Hua Ni , Zongjun Yang , Shangfang Dai
CPC classification number: H02J3/38 , H01F38/42 , H02J3/381 , H02M3/005 , H02M3/24 , H02M3/335 , H02M7/00 , H02M7/06 , H02M7/217 , H02J2300/24 , Y02E10/56
Abstract: Provided are a device for suppressing potential induced degradation and a system. The device includes a rectification circuit, a non-isolated voltage conversion circuit and at least one capacitor. An input terminal of the rectification circuit is connected to an output terminal of a converter, the rectification circuit is configured to rectify an alternating current outputted by the converter into a direct current, the non-isolated voltage conversion circuit is configured to perform voltage conversion on the direct current outputted by the rectification circuit, and the voltage conversion is boost conversion or voltage reverse conversion. The capacitor is connected in parallel with an output terminal of the direct current, and either a positive electrode or a negative electrode of the capacitor is grounded.
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公开(公告)号：US20240128019A1
公开(公告)日：2024-04-18
申请号：US18484954
申请日：2023-10-11
Applicant: AcLeap Power Inc.
Inventor： Lanlan Yin , Yifeng Sun , Xiaojian Zhao
CPC classification number: H01F38/42 , H01F27/24 , H01F27/2828
Abstract: A winding includes one or more first magnetic poles, each has a first cross-sectional area equal to each other, and each is wound with a first primary side winding and a first secondary side winding. Each of the first primary side windings has a first number of primary side turns equal to each other, and each of the first secondary side windings has a first number of secondary side turns equal to each other. One or more second magnetic poles each have a second cross-sectional area equal to each other, and each is wound with a second primary side winding and a second secondary side winding. Each of the second primary side windings has a second number of primary side turns equal to each other, and each of the second secondary side windings has a second number of secondary side turns equal to each other.
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公开(公告)号：US09697949B2
公开(公告)日：2017-07-04
申请号：US14528040
申请日：2014-10-30
Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE
Inventor： Hong Je Ryoo , Sung Roc Jang , Hyoungsuk Kim , Jong Soo Kim
CPC classification number: H01F27/2895 , H01F27/2823 , H01F27/325 , H01F38/42 , H01F2005/022 , H02M3/3353 , H02M2001/0077
Abstract: A transformer including first coil unit and second unit, wherein one or more coils are wound on the bobbin of insulating material in at least one of the first coil unit and the second unit, and wherein the bobbin is formed with at least one partitioning flange for partitioning a coil winding surface of the bobbin into two winding surfaces along the longitudinal direction of the bobbin, is disclosed.
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Patent Agency Ranking
公开(公告)号：US09576720B2
公开(公告)日：2017-02-21
申请号：US14857582
申请日：2015-09-17
Applicant: NXP B.V.
Inventor： Humphrey de Groot
IPC: H01F27/28 , H02M7/217 , H01F27/29 , H01F27/38 , H01F38/42 , H02M1/44 , H02M3/335 , H02M1/00 , H02M1/12
CPC classification number: H01F27/2885 , H01F27/2823 , H01F27/289 , H01F27/29 , H01F27/385 , H01F38/42 , H02M1/44 , H02M3/335 , H02M3/33592 , H02M7/217 , H02M2001/0006 , H02M2001/0064 , H02M2001/123 , Y02B70/1475
Abstract: A transformer (900) comprising a primary-side auxiliary winding (976, wherein in use the primary-side auxiliary winding (976) is configured such that a first electric potential distribution is induced in the primary-side auxiliary winding (976); and a secondary-side auxiliary winding (982) configured such that a second electric potential distribution is induced in the secondary-side auxiliary winding (982). The primary-side auxiliary winding (976) is physically located between (a) a main pair of windings; and (b) the second-side auxiliary winding (982). A first portion of the secondary-side auxiliary winding (982) is positioned adjacent to a shield-portion of the primary-side auxiliary winding (976) such that the first electric potential distribution matches the second electric potential distribution: (1) along the respective lengths of the first portion of the secondary-side auxiliary winding (982) and the shield-portion of the primary-side auxiliary winding (975); and (2) over a frequency range that is greater than a particular threshold frequency.
Abstract translation: 一种变压器（900），包括初级侧辅助绕组（976），其中在使用中初级侧辅助绕组（976）构造成使得在初级侧辅助绕组（976）中感应出第一电位分布;以及 次级侧辅助绕组（982），其构造成使得在次级侧辅助绕组（982）中感应出第二电位分布，初级侧辅助绕组（976）物理地位于（a）主副绕组 绕组;和（b）第二侧辅助绕组（982），次级侧辅助绕组（982）的第一部分邻近初级侧辅助绕组（976）的屏蔽部分定位，使得 第一电位分布与第二电位分布匹配：（1）沿着次级侧辅助绕组（982）的第一部分和初级侧辅助绕组（975）的屏蔽部分的各自的长度;以及（ 2）通过频率 特征范围大于特定阈值频率。
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公开(公告)号：US20160181008A1
公开(公告)日：2016-06-23
申请号：US14857582
申请日：2015-09-17
Applicant: NXP B.V.
Inventor： Humphrey de Groot
CPC classification number: H01F27/2885 , H01F27/2823 , H01F27/289 , H01F27/29 , H01F27/385 , H01F38/42 , H02M1/44 , H02M3/335 , H02M3/33592 , H02M7/217 , H02M2001/0006 , H02M2001/0064 , H02M2001/123 , Y02B70/1475
Abstract: A transformer (900) comprising a primary-side auxiliary winding (976, wherein in use the primary-side auxiliary winding (976) is configured such that a first electric potential distribution is induced in the primary-side auxiliary winding (976); and a secondary-side auxiliary winding (982) configured such that a second electric potential distribution is induced in the secondary-side auxiliary winding (982). The primary-side auxiliary winding (976) is physically located between (a) a main pair of windings; and (b) the second-side auxiliary winding (982). A first portion of the secondary-side auxiliary winding (982) is positioned adjacent to a shield-portion of the primary-side auxiliary winding (976) such that the first electric potential distribution matches the second electric potential distribution: (1) along the respective lengths of the first portion of the secondary-side auxiliary winding (982) and the shield-portion of the primary-side auxiliary winding (975); and (2) over a frequency range that is greater than a particular threshold frequency.
Abstract translation: 一种变压器（900），包括初级侧辅助绕组（976），其中在使用中初级侧辅助绕组（976）构造成使得在初级侧辅助绕组（976）中感应出第一电位分布;以及 次级侧辅助绕组（982），其构造成使得在次级侧辅助绕组（982）中感应出第二电位分布，初级侧辅助绕组（976）物理地位于（a）主副绕组 绕组;和（b）第二侧辅助绕组（982），次级侧辅助绕组（982）的第一部分邻近初级侧辅助绕组（976）的屏蔽部分定位，使得 第一电位分布与第二电位分布匹配：（1）沿着次级侧辅助绕组（982）的第一部分和初级侧辅助绕组（975）的屏蔽部分的各自的长度;以及（ 2）通过频率 特征范围大于特定阈值频率。
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公开(公告)号：US20150162127A1
公开(公告)日：2015-06-11
申请号：US14414049
申请日：2013-06-29
Applicant: Hella KGaA Hueck & Co.
Inventor： Wolfgang Daub
CPC classification number: H01F30/12 , H01F3/12 , H01F38/42 , H01F2038/426
Abstract: A multi-phase stray field transformer used for storing energy and filtering currents with a number of 2*n+1 phases, wherein “n” represents a natural number, comprising a core (11, 12, 13, 14) with 2*n+1 of first yokes (11, 11a) with one winding (2) arranged on every first yoke and with at least one additional (second) yoke (12) that is connected to the rest of the core (13, 14) across an air gap (3) and/or exhibits such an air gap (3) with the core (11, 12, 13, 14) of the transformer being provided with 2*n second yokes (12) that are arranged with the first yokes (11) in an alternating fashion.
Abstract translation: 一种多相杂散场变压器，用于存储具有多个2 * n + 1相的能量和滤波电流，其中“n”表示自然数，包括具有2 * n的核心（11,12,13,14） +1的第一轭（11,11a），其中一个绕组（2）布置在每个第一磁轭上，以及至少一个附加（第二）磁轭（12），其连接到所述磁芯（13,14）的其余部分 气隙（3）和/或表现出与变压器的铁心（11,12,13,14）一起的这种气隙（3）设置有与第一轭架（...）配置的2 * n个第二轭铁（12） 11）以交替的方式。
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公开(公告)号：US08344839B2
公开(公告)日：2013-01-01
申请号：US12085992
申请日：2006-11-28
Applicant: Marco Faccin
Inventor： Marco Faccin
CPC classification number: H01F27/325 , H01F5/04 , H01F27/02 , H01F27/306 , H01F38/10 , H01F38/42 , H01F2005/022
Abstract: A transformer includes: —a plurality of windings (P, S1, S2) wound on a coil former (100), preferably in the form of a one-piece coil former, —a pair of first insulating flanges (106) separating a first winding (P) from a pair of second windings (S1, S2), —a pair of second insulating flanges (104) defining together with the first insulating flanges (106) two winding spaces for the second windings (S1, S2). The ends (P1, P2) of the wire of the first winding (P) extend across the winding spaces for the second windings (S1, S2). Insulating walls (208) are provided extending between the ends (P1, P2) of the wire of the first winding (P) and the second windings (S1, S2) to provide insulation therebetween.
Abstract translation: 变压器包括：多个卷绕在线圈架（100）上的绕组（P，S1，S2），优选为一体式线圈架形式，一对第一绝缘凸缘（106） 一对第二绕组（S1，S2）缠绕（P），一对第二绝缘凸缘（104），与第一绝缘凸缘（106）一起限定用于第二绕组（S1，S2）的两个绕组空间。 第一绕组（P）的导线的端部（P1，P2）跨越第二绕组（S1，S2）的绕组间隔延伸。 提供了在第一绕组（P）的导线的端部（P1，P2）和第二绕组（S1，S2）之间延伸的绝缘壁（208），以在它们之间提供绝缘。
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10.发明申请Co-Fired Ceramic Inductors With Variable Inductance, and Voltage Regulators Having Same 失效具有可变电感的共烧陶瓷电感器和具有相同电压的电压调节器公开(公告)号：US20100026440A1
公开(公告)日：2010-02-04
申请号：US12577415
申请日：2009-10-12
Applicant: Michele H. Lim , J.D van Wyk
Inventor： Michele H. Lim , J.D van Wyk
CPC classification number: H01F17/0033 , H01F38/42 , H01F41/043 , H01F2017/002 , H02M3/155 , Y10T29/4902 , Y10T29/49071 , Y10T29/49073 , Y10T29/49075
Abstract: Ceramic inductors are made from stacked sheets of co-fired ceramic. At least one of the ceramic sheets has a slot with a conductor disposed in the slot. The conductor has a thickness equal to a thickness of the ceramic sheet containing the slot. The conductor has a large thickness (compared to prior art co-fired ceramic inductors) and therefore can carry large currents. The present ceramic inductor can be used in power electronics applications due to the ability to carry large currents. The present ceramic inductor preferably has an inductance that decreases with increasing current. A decreasing inductance characteristic tends to increase energy efficiency in a voltage regulator when the inductor is used as an output inductor. Specifically, the variable inductance tends to substantially increase energy efficiency at low current loads without adversely affecting efficiency at high loads.
Abstract translation: 陶瓷电感器由叠层的共烧陶瓷片制成。 陶瓷片中的至少一个具有设置在槽中的导体的槽。 导体的厚度等于包含槽的陶瓷片的厚度。 导体具有较大的厚度（与现有技术的共烧陶瓷电感器相比），因此可以承载大电流。 由于能够承载大电流，本陶瓷电感器可用于电力电子应用中。 本陶瓷电感器优选具有随着电流增加而减小的电感。 当电感器用作输出电感器时，降低的电感特性趋向于提高电压调节器中的能量效率。 具体来说，可变电感倾向于在低电流负载下显着提高能量效率，而不会在高负载下不利地影响效率。
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