GB1027685A - Improvements in and relating to inductive devices - Google Patents

Improvements in and relating to inductive devices

Info

Publication number
GB1027685A
GB1027685A GB1258962A GB1258962A GB1027685A GB 1027685 A GB1027685 A GB 1027685A GB 1258962 A GB1258962 A GB 1258962A GB 1258962 A GB1258962 A GB 1258962A GB 1027685 A GB1027685 A GB 1027685A
Authority
GB
United Kingdom
Prior art keywords
winding
core
gaps
direct current
branches
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
Application number
GB1258962A
Inventor
Colin Bright Lewis
Anthony John Ealles
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1258962A priority Critical patent/GB1027685A/en
Publication of GB1027685A publication Critical patent/GB1027685A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F29/146—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

1,027,685. Transformers and inductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 26, 1963 [April 2, 1962], No. 12589/62. Heading H1T. An inductive device has a winding mounted on a closed figure core, which is subdivided to define two parallel flux branches, having non- variable air gaps, which differ between the branches to cause different reluctance characteristics. In this way, undesirable changes in the effective inductance values, especially when the winding is supplied by D.C. whose magnitude may vary, may be reduced. In one arrangement (Fig. 1, not shown), the winding 1 is mounted on the divided centre limb 3 of a shell cone, insulation 2 being provided. C- shaped outer limbs 4, 5 complete two parallel flux paths, the former having small gaps 6, 6<SP>1</SP>, the latter larger gaps 7, 7<SP>1</SP>. In a second arrangement, two elongated annular cores 8, 8<SP>1</SP> (Fig. 2, not shown) are arranged side by side, the core 8 having smaller gaps 10 than those (10<SP>1</SP>) in core 8<SP>1</SP>. A winding 9 surrounds one of the straight portions of the cores. Curves of inductance valves against direct current are given (Fig. 4, not shown) to indicate the advantages of the invention, which may be applied to smoothing chokes for direct current power packs.
GB1258962A 1962-04-02 1962-04-02 Improvements in and relating to inductive devices Expired GB1027685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1258962A GB1027685A (en) 1962-04-02 1962-04-02 Improvements in and relating to inductive devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1258962A GB1027685A (en) 1962-04-02 1962-04-02 Improvements in and relating to inductive devices

Publications (1)

Publication Number Publication Date
GB1027685A true GB1027685A (en) 1966-04-27

Family

ID=10007432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258962A Expired GB1027685A (en) 1962-04-02 1962-04-02 Improvements in and relating to inductive devices

Country Status (1)

Country Link
GB (1) GB1027685A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282567A (en) * 1976-10-26 1981-08-04 Texas Instruments Incorporated Modified power transformer for self-oscillating converter regulator power supply
EP0146818A2 (en) * 1983-11-29 1985-07-03 Holec GmbH Magnetic amplifier and speed control circuit for motors and its use
US5210514A (en) * 1990-08-17 1993-05-11 Tdk Corporation Coil device
US5414401A (en) * 1992-02-20 1995-05-09 Martin Marietta Corporation High-frequency, low-profile inductor
US7102479B2 (en) 1998-11-02 2006-09-05 Lincoln Global, Inc. Output choke for D.C. welder and method of using same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282567A (en) * 1976-10-26 1981-08-04 Texas Instruments Incorporated Modified power transformer for self-oscillating converter regulator power supply
EP0146818A2 (en) * 1983-11-29 1985-07-03 Holec GmbH Magnetic amplifier and speed control circuit for motors and its use
EP0146818A3 (en) * 1983-11-29 1985-08-07 Holec GmbH Magnetic amplifier and speed control circuit for motors and its use
US5210514A (en) * 1990-08-17 1993-05-11 Tdk Corporation Coil device
US5414401A (en) * 1992-02-20 1995-05-09 Martin Marietta Corporation High-frequency, low-profile inductor
US7102479B2 (en) 1998-11-02 2006-09-05 Lincoln Global, Inc. Output choke for D.C. welder and method of using same

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