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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
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.
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公开(公告)号：US11763984B2
公开(公告)日：2023-09-19
申请号：US17845609
申请日：2022-06-21
Applicant: Rompower Technology Holdings, LLC
Inventor： Ionel Jitaru
IPC: H01F30/02 , H01F30/06 , H01F27/245
CPC classification number: H01F30/06 , H01F27/245
Abstract: A magnetic and electrical circuit element including magnetic-flux-conducting posts, and a multi-layer structure formed with an electrically-conductive material. The multi-layer structure includes multiple layers forming a stack of layers along a length of the posts, said multi-layer structure configured as primary and secondary windings of a transformer. The primary winding is embedded in the multi-layer structure and wound around the magnetic-flux-conducting posts in such a way that a magnetic field induced in each of the magnetic-flux-conducting posts has a magnetic field polarity opposite to a polarity of the respective magnetic field of the magnetic-flux-conducting post adjacent the respective magnetic-flux-conducting post. Around each of the magnetic-flux-conducting posts, there is a respective one of the secondary windings connected to a semiconductor device. The magnetic-flux-conducting posts are connected magnetically by continuous magnetic-flux-conducting plates, each of which is shaped to ensure a continuous flow of the magnetic field successively through adjacent magnetic-flux-conducting posts.
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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
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.
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公开(公告)号：US11367565B2
公开(公告)日：2022-06-21
申请号：US17189096
申请日：2021-03-01
Applicant: Rompower Technology Holdings, LLC
Inventor： Ionel Jitaru
IPC: H01F30/02 , H01F30/06 , H01F27/245
Abstract: A magnetic and electrical circuit element including magnetic-flux-conducting posts, and a multi-layer structure formed with an electrically-conductive material. The multi-layer structure includes multiple layers forming a stack of layers along a length of the posts, said multi-layer structure configured as primary and secondary windings of a transformer. The primary winding is embedded in the multi-layer structure and wound around the magnetic-flux-conducting posts in such a way that a magnetic field induced in each of the magnetic-flux-conducting posts has a magnetic field polarity opposite to a polarity of the respective magnetic field of the magnetic-flux-conducting post adjacent the respective magnetic-flux-conducting post. Around each of the magnetic-flux-conducting posts, there is a respective one of the secondary windings connected to a semiconductor device. The magnetic-flux-conducting posts are connected magnetically by continuous magnetic-flux-conducting plates, each of which is shaped to ensure a continuous flow of the magnetic field successively through adjacent magnetic-flux-conducting posts.
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公开(公告)号：US20210319945A1
公开(公告)日：2021-10-14
申请号：US17212154
申请日：2021-03-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Ponggorn KULSANGCHAROEN , Aaron DAY
Abstract: A transformer coil structure includes a core defining an axis around which is wound a primary winding, and two secondary windings wound around the core over or under the primary winding. The windings are separated into two or more columns along the axial direction of the core by one or more gaps extending radially through the windings to the core.
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Patent Agency Ranking
公开(公告)号：US10742133B1
公开(公告)日：2020-08-11
申请号：US16257907
申请日：2019-01-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Frank Z. Feng
Abstract: A dual-output AC-DC power converter with balanced DC output voltages is described. The DC power source has balanced DC voltage outputs relative to DC midpoint irrespective of DC load imbalance. The input to the power source is three-phase four-wire AC voltage source. Current draws from the AC three-phase voltage source have 12-pulse near sinusoidal waveform. Ripple voltage from DC positive rail to DC negative rail is 12-pulse.
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公开(公告)号：US10720854B2
公开(公告)日：2020-07-21
申请号：US15224697
申请日：2016-08-01
Applicant: Rohollah Abdollahi
Inventor： Rohollah Abdollahi
Abstract: A novel 72-pulse AC-DC converter based on a 36-pulse converter is designed and implemented in this invention. Combining the outputs of two parallel 18-pulse diode bridges, consisting of nine legs of diode rectifiers, results in a 36-pulse topology. A zero sequence blocking transformer (ZSBT) is designed and applied to the proposed scheme guarantying the independent operation of the two bridges. To achieve a 72-pulse output, a pulse doubling circuit is applied which is inherently a tapped inter-phase transformer. A polygon-connected autotransformer platform is designed and added to the converter, making the proposed scheme suitable for retrofit applications. The proposed solution is a tradeoff among the pulse number, the transformer platform, the complexity of the scheme and the cost. The proposed scheme has an optimized configuration in this regard. The simulation results show that the proposed scheme improves the power quality indices.
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公开(公告)号：US20200052574A1
公开(公告)日：2020-02-13
申请号：US15224697
申请日：2016-08-01
Applicant: Rohollah Abdollahi
Inventor： Rohollah Abdollahi
Abstract: A novel 72-pulse AC-DC converter based on a 36-pulse converter is designed and implemented in this invention. Combining the outputs of two parallel 18-pulse diode bridges, consisting of nine legs of diode rectifiers, results in a 36-pulse topology. A zero sequence blocking transformer (ZSBT) is designed and applied to the proposed scheme guarantying the independent operation of the two bridges. To achieve a 72-pulse output, a pulse doubling circuit is applied which is inherently a tapped inter-phase transformer. A polygon-connected autotransformer platform is designed and added to the converter, making the proposed scheme suitable for retrofit applications. The proposed solution is a tradeoff among the pulse number, the transformer platform, the complexity of the scheme and the cost. The proposed scheme has an optimized configuration in this regard. The simulation results show that the proposed scheme improves the power quality indices.
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公开(公告)号：US10199161B2
公开(公告)日：2019-02-05
申请号：US15433241
申请日：2017-02-15
Applicant: Goodrich Control Systems
Inventor： Virgilio Valdivia-Guerrero , Daniel Diaz-Lopez , Joshua Parkin
Abstract: The present improvement essentially integrates a DC link inductance within an interphase power transformer (IPT). The integration is achieved by creating auxiliary magnetic paths for leakage inductance inside the IPT core. The magnetic path can be created, for example, by incorporating extra portions of magnetic material commonly referred to hereinafter as shunts. The IPT flux shared between windings does not cross these shunts. Therefore, this magnetic path increases the self-inductance of the IPT but does not contribute to the mutual inductance between windings. This extra magnetic path allows for leakage inductance of a much higher quantity than that achievable with a conventional IPT.
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公开(公告)号：US09601258B2
公开(公告)日：2017-03-21
申请号：US14328937
申请日：2014-07-11
Applicant: The Boeing Company
Inventor： Jian Huang , Eugene V. Solodovnik , Kamiar J. Karimi
Abstract: A multi-phase autotransformer (10) is disclosed. The exemplary transformer includes primary windings PWA, PWB, PWC) and secondary windings (SWA1-SWA4, SWB1-SWB4, SWC1-SWC4). The primary windings are connected in a delta configuration and to a three-phase input voltage source. Each secondary winding is electrically connected to a primary winding but is magnetically coupled to a different primary winding. Three sets of secondary windings provide three three-phase outputs (350A, 350B, 350C), each of which has a voltage which is less than the three-phase input voltage, the three-phase output of each set being phase-shifted with respect to the other sets. These three sets also, collectively, provide a multi-phase output (325). Another set of secondary windings, in conjunction with the input voltage, provides another multi-phase phase output (360) which has approximately the same voltage as the three-phase input voltage.
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