DE69232551D1 - Transformatoren und Verfahren, mit denen die Streuinduktivität in Transformatoren kontrolliert wird - Google Patents

Transformatoren und Verfahren, mit denen die Streuinduktivität in Transformatoren kontrolliert wird

Info

Publication number
DE69232551D1
DE69232551D1 DE69232551T DE69232551T DE69232551D1 DE 69232551 D1 DE69232551 D1 DE 69232551D1 DE 69232551 T DE69232551 T DE 69232551T DE 69232551 T DE69232551 T DE 69232551T DE 69232551 D1 DE69232551 D1 DE 69232551D1
Authority
DE
Germany
Prior art keywords
transformers
methods
control
leakage inductance
inductance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69232551T
Other languages
English (en)
Other versions
DE69232551T2 (de
Inventor
Patrizio Vinciarelli
Jay M Prager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vicor Corp
Original Assignee
VLT Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VLT Corp filed Critical VLT Corp
Application granted granted Critical
Publication of DE69232551D1 publication Critical patent/DE69232551D1/de
Publication of DE69232551T2 publication Critical patent/DE69232551T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/346—Preventing or reducing leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Dc-Dc Converters (AREA)
  • Regulation Of General Use Transformers (AREA)
DE69232551T 1991-09-13 1992-09-14 Transformatoren und Verfahren, mit denen die Streuinduktivität in Transformatoren kontrolliert wird Expired - Fee Related DE69232551T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75951191A 1991-09-13 1991-09-13

Publications (2)

Publication Number Publication Date
DE69232551D1 true DE69232551D1 (de) 2002-05-16
DE69232551T2 DE69232551T2 (de) 2002-08-22

Family

ID=25055924

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69226741T Expired - Fee Related DE69226741T2 (de) 1991-09-13 1992-09-14 Transformator
DE69232551T Expired - Fee Related DE69232551T2 (de) 1991-09-13 1992-09-14 Transformatoren und Verfahren, mit denen die Streuinduktivität in Transformatoren kontrolliert wird

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69226741T Expired - Fee Related DE69226741T2 (de) 1991-09-13 1992-09-14 Transformator

Country Status (4)

Country Link
US (3) US5546065A (de)
EP (2) EP0532360B1 (de)
JP (2) JP3311391B2 (de)
DE (2) DE69226741T2 (de)

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0715323A1 (de) * 1994-12-01 1996-06-05 Vlt Corporation Induktanzwerteinstellung von magnetischen Komponenten
EP0775765B1 (de) * 1995-11-27 2004-02-04 Vlt Corporation Plattierung von permeablen Kernen
US5694309A (en) * 1996-04-16 1997-12-02 Vlt Corporation Synchronization of power converter arrays
DE19637211C2 (de) * 1996-09-12 1999-06-24 Siemens Matsushita Components Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente
JP3750338B2 (ja) * 1997-03-07 2006-03-01 株式会社日立製作所 電力変換器およびその製造方法
US5838557A (en) * 1997-07-28 1998-11-17 Altor, Inc. Circuit for use in a DC-DC converter having a booster module
US6110213A (en) 1997-11-06 2000-08-29 Vlt Coporation Fabrication rules based automated design and manufacturing system and method
US6246311B1 (en) 1997-11-26 2001-06-12 Vlt Corporation Inductive devices having conductive areas on their surfaces
US6600402B1 (en) 1998-10-20 2003-07-29 Vlt Corporation Bobbins, transformers, magnetic components, and methods
US6593836B1 (en) * 1998-10-20 2003-07-15 Vlt Corporation Bobbins, transformers, magnetic components, and methods
US6664881B1 (en) 1999-11-30 2003-12-16 Ameritherm, Inc. Efficient, low leakage inductance, multi-tap, RF transformer and method of making same
EP1407545A1 (de) * 2001-07-04 2004-04-14 Koninklijke Philips Electronics N.V. Elektronisches inductives und kapazitives bauteil
US7276814B2 (en) * 2002-01-02 2007-10-02 Ruggedcom Inc. Environmentally hardened ethernet switch
US6720855B2 (en) * 2002-03-08 2004-04-13 The University Of North Carolina - Chapel Hill Magnetic-flux conduits
US7280026B2 (en) 2002-04-18 2007-10-09 Coldwatt, Inc. Extended E matrix integrated magnetics (MIM) core
US7142085B2 (en) * 2002-10-18 2006-11-28 Astec International Limited Insulation and integrated heat sink for high frequency, low output voltage toroidal inductors and transformers
WO2004040598A1 (en) * 2002-11-01 2004-05-13 Magtech As Coupling device
US8350655B2 (en) * 2003-02-26 2013-01-08 Analogic Corporation Shielded power coupling device
US9368272B2 (en) 2003-02-26 2016-06-14 Analogic Corporation Shielded power coupling device
US9490063B2 (en) 2003-02-26 2016-11-08 Analogic Corporation Shielded power coupling device
US7868723B2 (en) * 2003-02-26 2011-01-11 Analogic Corporation Power coupling device
JP4386241B2 (ja) * 2003-04-01 2009-12-16 キヤノン株式会社 鉄心、鉄心の製造方法、位置決め装置および露光装置
US6982621B2 (en) * 2003-04-01 2006-01-03 Power Integrations, Inc. Method and apparatus for substantially reducing electrical displacement current flow between input and output windings of an energy transfer element
WO2005015725A1 (ja) * 2003-08-11 2005-02-17 Sanken Electric Co., Ltd. スイッチング電源装置
US20070164612A1 (en) * 2004-01-09 2007-07-19 Koninkijke Phillips Electronics N.V. Decentralized power generation system
US7012414B1 (en) * 2004-08-19 2006-03-14 Coldwatt, Inc. Vertically packaged switched-mode power converter
US7427910B2 (en) * 2004-08-19 2008-09-23 Coldwatt, Inc. Winding structure for efficient switch-mode power converters
US7321283B2 (en) * 2004-08-19 2008-01-22 Coldwatt, Inc. Vertical winding structures for planar magnetic switched-mode power converters
KR20070086217A (ko) * 2004-12-14 2007-08-27 알렉스 액셀로드 자기 유도 디바이스
US7417875B2 (en) * 2005-02-08 2008-08-26 Coldwatt, Inc. Power converter employing integrated magnetics with a current multiplier rectifier and method of operating the same
US7385375B2 (en) * 2005-02-23 2008-06-10 Coldwatt, Inc. Control circuit for a depletion mode switch and method of operating the same
US7876191B2 (en) * 2005-02-23 2011-01-25 Flextronics International Usa, Inc. Power converter employing a tapped inductor and integrated magnetics and method of operating the same
US7176662B2 (en) * 2005-02-23 2007-02-13 Coldwatt, Inc. Power converter employing a tapped inductor and integrated magnetics and method of operating the same
JP2006270055A (ja) * 2005-02-28 2006-10-05 Matsushita Electric Ind Co Ltd 共振型トランスおよびそれを用いた電源ユニット
TWI254951B (en) * 2005-05-13 2006-05-11 Delta Electronics Inc A choke coil
JP5183492B2 (ja) * 2006-02-24 2013-04-17 バング アンド オルフセン アイスパワー アクティーゼルスカブ オーディオ電力変換システム
CN100583321C (zh) * 2006-03-25 2010-01-20 鸿富锦精密工业（深圳）有限公司 可调漏电感的变压器及使用其的放电灯驱动装置
US7692524B2 (en) * 2006-07-10 2010-04-06 Rockwell Automation Technologies, Inc. Methods and apparatus for flux dispersal in link inductor
US8125205B2 (en) * 2006-08-31 2012-02-28 Flextronics International Usa, Inc. Power converter employing regulators with a coupled inductor
US7675759B2 (en) * 2006-12-01 2010-03-09 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
US7675758B2 (en) * 2006-12-01 2010-03-09 Flextronics International Usa, Inc. Power converter with an adaptive controller and method of operating the same
US7889517B2 (en) * 2006-12-01 2011-02-15 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
US9197132B2 (en) 2006-12-01 2015-11-24 Flextronics International Usa, Inc. Power converter with an adaptive controller and method of operating the same
US7667986B2 (en) * 2006-12-01 2010-02-23 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
JP5191118B2 (ja) * 2006-12-05 2013-04-24 株式会社電研精機研究所 障害波遮断変圧器
US7468649B2 (en) * 2007-03-14 2008-12-23 Flextronics International Usa, Inc. Isolated power converter
US8125802B2 (en) * 2007-03-26 2012-02-28 On-Bright Electronic (Shanghai) Co., Ltd. Systems and methods for reducing EMI in switch mode converter systems
JP5034613B2 (ja) * 2007-03-30 2012-09-26 Ｔｄｋ株式会社 Ｄｃ／ｄｃコンバータ
WO2008152641A2 (en) * 2007-06-12 2008-12-18 Advanced Magnetic Solutions Ltd. Magnetic induction devices and methods for producing them
US20080316779A1 (en) * 2007-06-19 2008-12-25 Chandrasekaran Jayaraman System and method for estimating input power for a power processing circuit
WO2009018850A1 (de) * 2007-08-06 2009-02-12 Siemens Aktiengesellschaft Verfahren zur ermittlung der magnetischen streuflusskopplung eines transformators
WO2009049076A1 (en) * 2007-10-09 2009-04-16 Particle Drilling Technologies, Inc. Injection system and method
US7387724B1 (en) * 2007-12-03 2008-06-17 Kuo-Hwa Lu Fluid magnetizer
US7936244B2 (en) * 2008-05-02 2011-05-03 Vishay Dale Electronics, Inc. Highly coupled inductor
US8593244B2 (en) * 2008-09-18 2013-11-26 The Boeing Company Control of leakage inductance
CN102342008B (zh) 2009-01-19 2016-08-03 伟创力国际美国公司 用于功率转换器的控制器
US8520414B2 (en) * 2009-01-19 2013-08-27 Power Systems Technologies, Ltd. Controller for a power converter
US9019061B2 (en) 2009-03-31 2015-04-28 Power Systems Technologies, Ltd. Magnetic device formed with U-shaped core pieces and power converter employing the same
JP5534551B2 (ja) * 2009-05-07 2014-07-02 住友電気工業株式会社 リアクトル
US8514593B2 (en) * 2009-06-17 2013-08-20 Power Systems Technologies, Ltd. Power converter employing a variable switching frequency and a magnetic device with a non-uniform gap
US9077248B2 (en) 2009-06-17 2015-07-07 Power Systems Technologies Ltd Start-up circuit for a power adapter
US8643222B2 (en) 2009-06-17 2014-02-04 Power Systems Technologies Ltd Power adapter employing a power reducer
DE102009036396A1 (de) * 2009-08-06 2011-02-10 Epcos Ag Stromkompensierte Drossel und Verfahren zur Herstellung einer stromkompensierten Drossel
US8638578B2 (en) 2009-08-14 2014-01-28 Power System Technologies, Ltd. Power converter including a charge pump employable in a power adapter
JP5656063B2 (ja) * 2009-10-29 2015-01-21 住友電気工業株式会社 リアクトル
US8976549B2 (en) * 2009-12-03 2015-03-10 Power Systems Technologies, Ltd. Startup circuit including first and second Schmitt triggers and power converter employing the same
US8520420B2 (en) * 2009-12-18 2013-08-27 Power Systems Technologies, Ltd. Controller for modifying dead time between switches in a power converter
US9246391B2 (en) 2010-01-22 2016-01-26 Power Systems Technologies Ltd. Controller for providing a corrected signal to a sensed peak current through a circuit element of a power converter
US8787043B2 (en) * 2010-01-22 2014-07-22 Power Systems Technologies, Ltd. Controller for a power converter and method of operating the same
US9721716B1 (en) * 2010-02-26 2017-08-01 Universal Lighting Technologies, Inc. Magnetic component having a core structure with curved openings
US8767418B2 (en) 2010-03-17 2014-07-01 Power Systems Technologies Ltd. Control system for a power converter and method of operating the same
DE112011101073T5 (de) * 2010-03-26 2013-01-10 Power Systems Technologies,Ltd. Netzteil mit einem Hub für einen universellen seriellen Bus
JP5612396B2 (ja) * 2010-08-26 2014-10-22 三井造船株式会社 誘導加熱装置および誘導加熱方法
JP6008491B2 (ja) * 2011-02-15 2016-10-19 トクデン株式会社 高周波発生装置
US8792257B2 (en) 2011-03-25 2014-07-29 Power Systems Technologies, Ltd. Power converter with reduced power dissipation
JP5010055B1 (ja) * 2011-05-25 2012-08-29 三菱電機株式会社 変圧器
CN103650077B (zh) 2011-06-27 2016-01-27 丰田自动车株式会社 电抗器及其制造方法
US9183981B2 (en) * 2011-06-27 2015-11-10 Toyota Jidosha Kabushiki Kaisha Reactor and manufacturing method thereof
ITMI20112450A1 (it) * 2011-12-30 2013-07-01 Eni Spa Apparato e metodo per monitorare l'integrita' strutturale di una condotta
US8792256B2 (en) 2012-01-27 2014-07-29 Power Systems Technologies Ltd. Controller for a switch and method of operating the same
FR2987932B1 (fr) * 2012-03-06 2016-06-03 Valeo Equip Electr Moteur Procede de limitation d'un courant d'appel dans un circuit electrique de puissance d'un demarreur de vehicule automobile, circuit electrique, limiteur de courant et demarreur correspondants
US9190898B2 (en) 2012-07-06 2015-11-17 Power Systems Technologies, Ltd Controller for a power converter and method of operating the same
US9099232B2 (en) 2012-07-16 2015-08-04 Power Systems Technologies Ltd. Magnetic device and power converter employing the same
US9379629B2 (en) 2012-07-16 2016-06-28 Power Systems Technologies, Ltd. Magnetic device and power converter employing the same
US9106130B2 (en) 2012-07-16 2015-08-11 Power Systems Technologies, Inc. Magnetic device and power converter employing the same
US9214264B2 (en) 2012-07-16 2015-12-15 Power Systems Technologies, Ltd. Magnetic device and power converter employing the same
US9240712B2 (en) 2012-12-13 2016-01-19 Power Systems Technologies Ltd. Controller including a common current-sense device for power switches of a power converter
US9257224B2 (en) * 2012-12-21 2016-02-09 Raytheon Company Shield for toroidal core electromagnetic device, and toroidal core electromagnetic devices utilizing such shields
US9576725B2 (en) * 2012-12-28 2017-02-21 General Electric Company Method for reducing interwinding capacitance current in an isolation transformer
JP2014150220A (ja) * 2013-02-04 2014-08-21 Toyota Motor Corp リアクトル
US9111678B2 (en) 2013-04-09 2015-08-18 Fred O. Barthold Planar core-type uniform external field equalizer and fabrication
US20140320254A1 (en) * 2013-04-30 2014-10-30 Nextek Power Systems, Inc. Assembly Having Transformer and Inductor Properties and Method of Making the Assembly
US9640315B2 (en) 2013-05-13 2017-05-02 General Electric Company Low stray-loss transformers and methods of assembling the same
US9300206B2 (en) 2013-11-15 2016-03-29 Power Systems Technologies Ltd. Method for estimating power of a power converter
KR101532376B1 (ko) * 2013-11-22 2015-07-01 피에스케이 주식회사 상호 유도 결합을 이용한 플라즈마 생성 장치 및 그를 포함하는 기판 처리 장치
US9438099B2 (en) 2014-01-09 2016-09-06 Fred O. Barthold Harmonic displacement reduction
DE102014107829B4 (de) * 2014-06-04 2020-07-30 Michael Riedel Transformatorenbau Gmbh Induktivität sowie Herstellungsverfahren hierfür und Baukasten
CN104764964B (zh) * 2015-04-21 2018-04-10 华北电力大学 大容量高频电力变压器分析方法及装置
JP6287974B2 (ja) * 2015-06-29 2018-03-07 株式会社村田製作所 コイル部品
US10446309B2 (en) 2016-04-20 2019-10-15 Vishay Dale Electronics, Llc Shielded inductor and method of manufacturing
JP7116531B2 (ja) * 2017-05-24 2022-08-10 株式会社トーキン コモンモードチョークコイル
US20210375536A1 (en) * 2017-11-06 2021-12-02 United States Department Of Energy Mixed material magnetic core for shielding of eddy current induced excess losses
DE102018202669B3 (de) * 2018-02-22 2019-07-04 SUMIDA Components & Modules GmbH Induktives Bauelement und Verfahren zur Herstellung eines induktiven Bauelements
JP6881379B2 (ja) * 2018-03-30 2021-06-02 株式会社豊田自動織機 車載用電動圧縮機
DE102019204138A1 (de) * 2018-03-30 2019-10-02 Kabushiki Kaisha Toyota Jidoshokki Fahrzeuginterner motorgetriebener Kompressor
JP6879253B2 (ja) * 2018-03-30 2021-06-02 株式会社豊田自動織機 車載用電動圧縮機
US10825604B1 (en) * 2018-09-11 2020-11-03 United States Of America, As Represented By The Secretary Of The Navy Power-dense bipolar high-voltage transformer
JP7081554B2 (ja) * 2019-03-29 2022-06-07 株式会社豊田自動織機 電動圧縮機
JP7184004B2 (ja) * 2019-09-25 2022-12-06 株式会社豊田自動織機 車載用電動圧縮機

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063135A (en) * 1962-11-13 E clark
US3123787A (en) * 1964-03-03 Toroidal transformer having a high turns ratio
DE229109C (de) *
CH125076A (de) * 1926-02-06 1928-03-16 Siemens Ag Belastungsspule.
DE516309C (de) 1929-09-15 1931-01-22 Koch & Sterzel Akt Ges Verfahren zum Verbinden der Stossstellen von mindestens zwei Teilen, die ohne Verwendung von Keil, Schraube, Niet zusammengesetzt einen in sich geschlossenen Ringkoerper ergeben
US2939096A (en) * 1955-11-28 1960-05-31 Epsco Inc Electro-magnetic device
US2911604A (en) * 1957-04-30 1959-11-03 Hughes Aircraft Co Hermetically sealed housing
US3032729A (en) * 1957-05-16 1962-05-01 Phillips Petroleum Co Temperature stable transformer
US3010185A (en) * 1958-10-21 1961-11-28 Gen Electric Method of forming magnetic cores
US3154840A (en) * 1960-06-06 1964-11-03 Rca Corp Method of making a magnetic memory
US3142029A (en) * 1960-08-22 1964-07-21 Gen Electric Shielding of foil wound electrical apparatus
US3149296A (en) * 1961-01-03 1964-09-15 Gulton Ind Inc Shielded transformer
US3336662A (en) * 1962-06-07 1967-08-22 Massachusetts Inst Technology Shielding a magnetic core
US3522509A (en) * 1968-10-30 1970-08-04 Scient Data Systems Inc Floating power supply
FR2067180A1 (en) * 1969-11-21 1971-08-20 Int Standard Electric Corp Electro static shielding of toroidal transformers
GB1297423A (de) * 1970-05-12 1972-11-22
US3851287A (en) * 1972-02-09 1974-11-26 Litton Systems Inc Low leakage current electrical isolation system
DE2350805A1 (de) * 1973-10-10 1975-09-04 Messerschmitt Boelkow Blohm Wechselstromdurchflossene spule
DE2352851B2 (de) * 1973-10-22 1978-02-16 Robert Bosch Gmbh, 7000 Stuttgart Induktiver weggeber oder drehwinkelgeber
US3827018A (en) * 1973-11-02 1974-07-30 Westinghouse Electric Corp Power transformer having flux shields surrounding metallic structural members
US4145591A (en) * 1976-01-24 1979-03-20 Nitto Chemical Industry Co., Ltd. Induction heating apparatus with leakage flux reducing means
US4177418A (en) * 1977-08-04 1979-12-04 International Business Machines Corporation Flux controlled shunt regulated transformer
US4156862A (en) * 1978-02-21 1979-05-29 Westinghouse Electric Corp. Electrical inductive apparatus having non-magnetic flux shields
US4187450A (en) * 1978-03-09 1980-02-05 General Electric Company High frequency ballast transformer
SE413716B (sv) * 1978-05-02 1980-06-16 Asea Ab Krafttransformator eller reaktor
FR2454251B1 (fr) * 1979-04-13 1987-06-12 Klein Siegfried Circuit blinde depourvu de fuites d'ondes electromagnetiques perturbatrices
DE2931382A1 (de) * 1979-08-02 1981-02-26 Bosch Gmbh Robert Kurzschlussring-geber
JPS5760813A (en) 1980-09-30 1982-04-13 Toshiba Corp Resin molded transformer
US4415959A (en) * 1981-03-20 1983-11-15 Vicor Corporation Forward converter switching at zero current
DE3126498C3 (de) * 1981-07-04 1987-07-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Magnetische Abschirming für einen Übertrager
JPS5858713A (ja) 1981-10-03 1983-04-07 Matsushita Electric Ind Co Ltd トランス
JPS59145016A (ja) 1983-02-08 1984-08-20 Matsushita Electric Ind Co Ltd オゾン除去装置
US4484171A (en) * 1983-02-18 1984-11-20 Mcloughlin Robert C Shielded transformer
DE3333656A1 (de) 1983-09-17 1985-03-28 Philips Patentverwaltung Gmbh, 2000 Hamburg Wechselspannungsumsetzer
FR2558639B1 (fr) 1984-01-20 1986-04-25 Thomson Csf Mat Tel Procede et machine d'assemblage automatique de transformateurs a circuit ferrite en pot
JPS60229671A (ja) 1984-04-27 1985-11-15 Kyosan Electric Mfg Co Ltd スイツチングコンバ−タ
US4550364A (en) * 1984-06-05 1985-10-29 Shaw William S Power transformer for use with very high speed integrated circuits
JPS6127613A (ja) 1984-07-18 1986-02-07 Hitachi Ltd 電磁誘導装置
JPS61139013A (ja) * 1984-12-10 1986-06-26 Matsushita Electric Ind Co Ltd トランス
JPS61224308A (ja) 1985-03-29 1986-10-06 Toshiba Corp ギヤツプ付鉄心形リアクトル
IT1186592B (it) * 1985-07-10 1987-12-04 Riva Calzoni Spa Riduttore planetario per la motorizzazione di mezzi cingolati e macchine di movimento terra in genere
JPS62296407A (ja) * 1986-06-17 1987-12-23 Canon Inc 電源装置
JPH07123221B2 (ja) 1986-07-11 1995-12-25 松下電器産業株式会社 スイツチングトランジスタの駆動回路
JPH0767275B2 (ja) * 1986-07-11 1995-07-19 松下電器産業株式会社 スイツチング電源
DE3627888A1 (de) * 1986-08-16 1988-02-18 Philips Patentverwaltung Transformator mit einer magnetischen abschirmung
JPH01108918A (ja) 1987-10-21 1989-04-26 Iseki & Co Ltd コンバイン用結束機の株揃調節装置
JPH01154504A (ja) 1987-12-11 1989-06-16 Hitachi Ltd 障害波防止変圧器
JPH01209705A (ja) 1988-02-18 1989-08-23 Mitsubishi Electric Corp 電磁コイル
US4891620A (en) * 1988-07-22 1990-01-02 Cheng Bruce C H Insulating tubeless transformer
JPH0245905A (ja) 1988-08-08 1990-02-15 Matsushita Electric Ind Co Ltd コンバータートランス
JP2686472B2 (ja) 1988-08-29 1997-12-08 株式会社テネックス フィルタエレメントの親水剤処理方法
FR2655475B1 (fr) * 1989-12-01 1992-02-21 Orega Electro Mecanique Dispositif de blindage pour transformateur d'alimentation a decoupage.
DK169008B1 (da) * 1990-06-01 1994-07-25 Holec Lk A S Fremgangsmåde og skærm til afskærmning af en strømtransformer samt strømtransformer med en sådan afskærmning
JPH065448A (ja) * 1992-06-22 1994-01-14 Matsushita Electric Ind Co Ltd チョークコイルおよび電源装置
JP1154504S (de) 2001-10-31 2002-09-30

Also Published As

Publication number Publication date
EP0532360B1 (de) 1998-08-26
US5719544A (en) 1998-02-17
DE69226741D1 (de) 1998-10-01
US6653924B2 (en) 2003-11-25
JP3311391B2 (ja) 2002-08-05
EP0532360A1 (de) 1993-03-17
EP0881647A1 (de) 1998-12-02
US20020097130A1 (en) 2002-07-25
DE69232551T2 (de) 2002-08-22
DE69226741T2 (de) 1999-05-20
JPH06151210A (ja) 1994-05-31
US5546065A (en) 1996-08-13
JP2002237423A (ja) 2002-08-23
EP0881647B1 (de) 2002-04-10

Similar Documents

Publication Publication Date Title
DE69232551D1 (de) Transformatoren und Verfahren, mit denen die Streuinduktivität in Transformatoren kontrolliert wird
DE69332025D1 (de) Former mit verstellbarem umfang
DE69230458D1 (de) Halbleiterkörper, Verfahren zu seiner Herstellung und Halbleiteranordnung mit diesem Körper
DE69425867D1 (de) Induktives Bauelement
DE69519857D1 (de) Übereinanderliegende umhüllungen mit erhöhter stabilität
DE59201931D1 (de) Verfahren und Vorrichtung zum Herstellen von Klappschachteln mit Kragen.
DE59103913D1 (de) Vorrichtung zum herstellen von metallmischoxidschichten.
DE69101599D1 (de) 2,9-Dichlorochinacridon in Plättchenform.
TR27262A (tr) Kumas koruyucu maddeler.
FI942912A (fi) Substituoidut bentsimidatsolit, menetelmä niiden valmistamiseksi sekä niiden käyttö
DE69502780D1 (de) Induktive vorrichtung mit verbindungselementen
DE69218493D1 (de) Mikroprozessor mit Haltbefehl
DE59206673D1 (de) Fahrzeug, insbesondere landmaschine, mit schwenkvorrichtung
HU9203936D0 (en) Method for producing 2-chloro-pyridine derivatives substituted in the 5th position
GB2259806B (en) Semiconductor device and method for producing the semiconductor device
DE69507324D1 (de) Unterhose in einer grösse
DE69223861D1 (de) Halbleiteranordnung und Verfahren zum Herstellen derselben, Wiedergabeanordnung mit einer derartigen Halbleiteranordnung
ITMI932300A0 (it) Dispositivo di riscaldamento induttivo
HU9202975D0 (en) Dihydro-pyridines substituted by indole-sulfonamide, method for producing them and their application in pharmaceutical preparatives
ITFI910010V0 (it) Rivestimento decorativo per tavoli, in particolare per banchetti e circostanze analoghe
ZA925225B (en) Method to obtain in the cold state single finished sections from cold single multi-section elements,and relative machine
KR950008731U (ko) 전, 후로 이동되는 기관차 운전실용 의자
BR9202811A (pt) Aperfeicoamento aplicado em jogo recreativo de mesa
GB9314840D0 (en) Benzopyran derivative,method for producing the same and use thereof
KR930008408U (ko) 상, 하 금형의 체결구

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VLT, INC., SUNNYVALE, CALIF., US

8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8339 Ceased/non-payment of the annual fee