JPS57126110A - Inductance element - Google Patents

Inductance element

Info

Publication number
JPS57126110A
JPS57126110A JP1083781A JP1083781A JPS57126110A JP S57126110 A JPS57126110 A JP S57126110A JP 1083781 A JP1083781 A JP 1083781A JP 1083781 A JP1083781 A JP 1083781A JP S57126110 A JPS57126110 A JP S57126110A
Authority
JP
Japan
Prior art keywords
magnetic
currents
smoothing
substance
substances
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.)
Granted
Application number
JP1083781A
Other languages
Japanese (ja)
Other versions
JPS6119098B2 (en
Inventor
Akio Nakamura
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 Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP1083781A priority Critical patent/JPS57126110A/en
Publication of JPS57126110A publication Critical patent/JPS57126110A/en
Publication of JPS6119098B2 publication Critical patent/JPS6119098B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To obtain a constitution proper to the smoothing, etc. of pulsating voltage by dividing a magnetic core oppositely contacting with a central magnetic leg and side magnetic legs of the magnetic core with these magnetic legs through a permanent magnet in the element used for a switching regulator, etc. CONSTITUTION:The inductance element is formed by an E type soft magnetic substance 1 and I type soft magnetic substances 2, 3. The permanent magnet pieces 4A-C for magnetic bias are disposed to a gap between the magnetic substances 2, 3, and winding 5 is wound on the central magnetic leg 1a. The magnetic substance 2 directly contacts oppositely with the magnetic leg 1a and the side magnetic legs 1b, and preferably has permeability sufficiently larger than the magnetic substances 1, 3, and the magnetic substances 2, 3 are unified structurally through the magnet pieces 4A-C. The polarity of the magnet pieces 4A-C is determined in the direction that denies magnetic flux by the DC components of smoothing currents. The magnetic flux of the winding 5 passes through the magnetic substance 2 when currents are small, and the magnetic substance 2 functions as the magnetic core having the large equivalent gap formed together with the magnetic substance 3 when currents are large. Accordingly, large inductance is obtained in a region where the smoothing currents are small and small inductance in a region where the smoothing currents are large.
JP1083781A 1981-01-29 1981-01-29 Inductance element Granted JPS57126110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1083781A JPS57126110A (en) 1981-01-29 1981-01-29 Inductance element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1083781A JPS57126110A (en) 1981-01-29 1981-01-29 Inductance element

Publications (2)

Publication Number Publication Date
JPS57126110A true JPS57126110A (en) 1982-08-05
JPS6119098B2 JPS6119098B2 (en) 1986-05-15

Family

ID=11761458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1083781A Granted JPS57126110A (en) 1981-01-29 1981-01-29 Inductance element

Country Status (1)

Country Link
JP (1) JPS57126110A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0538829U (en) * 1991-10-26 1993-05-25 ミツミ電機株式会社 Fixed coil
WO2000019458A1 (en) * 1998-09-29 2000-04-06 Modex-Lite Inc. Permanent magnetic core device
JP2002222714A (en) * 2001-01-26 2002-08-09 Nec Tokin Corp Inductor
JP2002289443A (en) * 2001-03-23 2002-10-04 Nec Tokin Corp Inductor component
JP2002359127A (en) * 2001-05-31 2002-12-13 Nec Tokin Corp Core, coil component using core and power supply circuit
JP2013042027A (en) * 2011-08-18 2013-02-28 Fdk Corp Choke coil
CN103578688A (en) * 2012-07-20 2014-02-12 南昌航空大学 Inductance element provided with permanent magnet bias magnet and bypass magnetic core

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327597U (en) * 1986-08-08 1988-02-23

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136564A (en) * 1974-09-24 1976-03-27 Hitachi Metals Ltd INDAKUTAA
JPS5254938A (en) * 1975-10-31 1977-05-04 Sony Corp Switching regulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136564A (en) * 1974-09-24 1976-03-27 Hitachi Metals Ltd INDAKUTAA
JPS5254938A (en) * 1975-10-31 1977-05-04 Sony Corp Switching regulator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0538829U (en) * 1991-10-26 1993-05-25 ミツミ電機株式会社 Fixed coil
WO2000019458A1 (en) * 1998-09-29 2000-04-06 Modex-Lite Inc. Permanent magnetic core device
JP2002222714A (en) * 2001-01-26 2002-08-09 Nec Tokin Corp Inductor
JP2002289443A (en) * 2001-03-23 2002-10-04 Nec Tokin Corp Inductor component
JP2002359127A (en) * 2001-05-31 2002-12-13 Nec Tokin Corp Core, coil component using core and power supply circuit
JP2013042027A (en) * 2011-08-18 2013-02-28 Fdk Corp Choke coil
CN103578688A (en) * 2012-07-20 2014-02-12 南昌航空大学 Inductance element provided with permanent magnet bias magnet and bypass magnetic core

Also Published As

Publication number Publication date
JPS6119098B2 (en) 1986-05-15

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