EP0821375A1 - Utilisation d'une inductance d'antiparasitage dans alimentations à découpage - Google Patents

Utilisation d'une inductance d'antiparasitage dans alimentations à découpage Download PDF

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Publication number
EP0821375A1
EP0821375A1 EP97112091A EP97112091A EP0821375A1 EP 0821375 A1 EP0821375 A1 EP 0821375A1 EP 97112091 A EP97112091 A EP 97112091A EP 97112091 A EP97112091 A EP 97112091A EP 0821375 A1 EP0821375 A1 EP 0821375A1
Authority
EP
European Patent Office
Prior art keywords
core
gap
switching power
power supplies
section
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.)
Withdrawn
Application number
EP97112091A
Other languages
German (de)
English (en)
Inventor
Andrea Unseld
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.)
TDK Electronics AG
Original Assignee
Siemens Matsushita Components GmbH and Co KG
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 Siemens Matsushita Components GmbH and Co KG filed Critical Siemens Matsushita Components GmbH and Co KG
Publication of EP0821375A1 publication Critical patent/EP0821375A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00

Definitions

  • the invention relates to the use of a suppressor choke to suppress high frequency interference and harmonics in switching power supplies.
  • Interference voltages arise on the secondary side in switching power supplies in frequency ranges of a few MHz.
  • chokes are used, which too do not saturate at higher currents and their damping properties to keep.
  • the present invention relates to the use of a Suppressor choke with a wound, geometrically essentially closed, core (1,6), which is made of a highly permeable Material exists and in which at least a narrow one Gap (3,4,5,7,8,9) is arranged to suppress high-frequency interference and harmonics in switching power supplies.
  • Throttles are from the prior art Coil cores with an air gap are known (see for example US-1,251,651, DE-2237309-B2, DE-2701558-A1, DE-3414056-A1), however, these known chokes are used for other purposes. An application in switching power supplies is at the stand the technology is not provided.
  • a choke which is designed with the lowest possible loss is a low saturation behavior even at higher currents to show.
  • a shear of the hysteresis curve which is shown in FIG is shown.
  • the dashed curves refer here on cores without a gap, while the solid curves one Affect core with gap located therein.
  • FIG. 1 It can be seen from FIG. 1 that a core with a core arranged therein Gap only later, i.e. only at higher currents goes into saturation.
  • Figure 1 it is indicated that at one certain magnetic induction B with the execution of the core with an air gap much higher magnetic Field strengths H (difference ⁇ H) can be achieved.
  • shear has the hysteresis curve by arranging one gap the other Advantage that the self-heating of the throttle is reduced.
  • FIG. 2 shows the embodiment of a throttle, that of an annular core 1 with winding 2 (only partially shown in the figure).
  • the Width is very small in relation to the size of the core 1.
  • a throttle which also consists of there is a toroidal core 1 with winding 2, in the toroidal core 1 column 4.5 are arranged, which are only over a section extend the core.
  • Gap 4 is on the inside and gap 5 arranged on the outside of the core 1.
  • Figures 4 and 5 are chokes with a rectangular Core 6 shown, in which either a continuous Gap 7 or non-continuous column 8.9 are arranged.
  • a throttle which consists of a rectangular Core part 6 consists in which a continuous Gap 7 with the dimensions l (length), b (width) and t (Depth) is arranged.
  • a material 10 is in the gap 7 brought in.
  • the number, arrangement, and dimensions of the column depends on the desired design of the switching power supply from.
  • the gap can be wholly or only partially with the material 10 are filled in, which in turn changes behavior the throttle can be reached depending on the application.
  • the attachment of the windings 2 on the core is done by the Use case determined.
  • the wrapping can be over the gap be attached, but the gaps can also be wrapped be spared.
  • the chokes described above are used in switching power supplies, for example in that described in EP 0 598 197 A2 Flyback converter switching power supply with sinusoidal Current consumption, used.
  • There the throttle on the electricity pump can be arranged and reduce harmonics on the network side of the switching power supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dc-Dc Converters (AREA)
  • Soft Magnetic Materials (AREA)
  • Filters And Equalizers (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Coils Or Transformers For Communication (AREA)
EP97112091A 1996-07-26 1997-07-15 Utilisation d'une inductance d'antiparasitage dans alimentations à découpage Withdrawn EP0821375A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19630314 1996-07-26
DE19630314 1996-07-26

Publications (1)

Publication Number Publication Date
EP0821375A1 true EP0821375A1 (fr) 1998-01-28

Family

ID=7801012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112091A Withdrawn EP0821375A1 (fr) 1996-07-26 1997-07-15 Utilisation d'une inductance d'antiparasitage dans alimentations à découpage

Country Status (3)

Country Link
EP (1) EP0821375A1 (fr)
JP (1) JPH1074638A (fr)
HU (1) HUP9701301A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023563A2 (fr) * 2000-09-13 2002-03-21 Pulse Engineering Bobine micro-electronique amelioree et son procede de fabrication

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3309372B2 (ja) * 1999-01-18 2002-07-29 株式会社エス・エッチ・ティ コイル装置及びその製造方法
JP4350268B2 (ja) * 2000-05-10 2009-10-21 Ｆｄｋ株式会社 チョークコイル
JP6036759B2 (ja) * 2013-07-29 2016-11-30 Ｊｆｅスチール株式会社 高周波リアクトルの設計方法及び製造方法
JP2015046587A (ja) * 2013-07-29 2015-03-12 Ｊｆｅスチール株式会社 高周波リアクトル及びその製造方法
JP6555941B2 (ja) * 2015-06-12 2019-08-07 矢崎総業株式会社 電線収容部材及びワイヤーハーネス
US20180218828A1 (en) * 2017-01-27 2018-08-02 Toyota Motor Engineering & Manufacturing North America, Inc. Inductor with variable permeability core

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196513A (en) * 1981-05-28 1982-12-02 Tamura Seisakusho Co Ltd Choke coil of switching regulator or the like
EP0684679A1 (fr) * 1994-05-26 1995-11-29 Abb Stromberg Kojeet Oy Méthode pour la réduction de la distorsion de la forme de l'onde en un dispositif électrique et circuit pour un dispositif électrique
EP0706192A1 (fr) * 1994-04-26 1996-04-10 Matsushita Electric Industrial Co., Ltd. Bobine d'arret
JPH08181024A (ja) * 1994-12-26 1996-07-12 Tokin Corp 高調波電流抑制用チョークコイル

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196513A (en) * 1981-05-28 1982-12-02 Tamura Seisakusho Co Ltd Choke coil of switching regulator or the like
EP0706192A1 (fr) * 1994-04-26 1996-04-10 Matsushita Electric Industrial Co., Ltd. Bobine d'arret
EP0684679A1 (fr) * 1994-05-26 1995-11-29 Abb Stromberg Kojeet Oy Méthode pour la réduction de la distorsion de la forme de l'onde en un dispositif électrique et circuit pour un dispositif électrique
JPH08181024A (ja) * 1994-12-26 1996-07-12 Tokin Corp 高調波電流抑制用チョークコイル

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
KATALOGSEITEN DER FIRMA WAASNER Seite 57. 'Sonderformen gescherte Ringbandkerne (mit einem Luftspalt)'
PATENT ABSTRACTS OF JAPAN vol. 007, no. 045 (E - 160) 23 February 1983 (1983-02-23) *
PATENT ABSTRACTS OF JAPAN vol. 096, no. 011 29 November 1996 (1996-11-29) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023563A2 (fr) * 2000-09-13 2002-03-21 Pulse Engineering Bobine micro-electronique amelioree et son procede de fabrication
WO2002023563A3 (fr) * 2000-09-13 2002-08-15 Pulse Engineering Bobine micro-electronique amelioree et son procede de fabrication

Also Published As

Publication number Publication date
HUP9701301A2 (hu) 1998-04-28
HUP9701301A3 (en) 1999-10-28
JPH1074638A (ja) 1998-03-17
HU9701301D0 (en) 1997-09-29

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