GB890256A - Magnetic cores and method of forming same - Google Patents

Magnetic cores and method of forming same

Info

Publication number
GB890256A
GB890256A GB33662/59A GB3366259A GB890256A GB 890256 A GB890256 A GB 890256A GB 33662/59 A GB33662/59 A GB 33662/59A GB 3366259 A GB3366259 A GB 3366259A GB 890256 A GB890256 A GB 890256A
Authority
GB
United Kingdom
Prior art keywords
shaped
winding
notches
lamination
oct
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
GB33662/59A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB890256A publication Critical patent/GB890256A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Landscapes

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

Abstract

890,256. Electric transformers. GENERAL ELECTRIC CO. Oct. 5, 1959 [Oct. 21, 1958], No. 33662/59. Class 38 (2). [Also in Group XXII] To reduce waste in making a shell-type laminated magnetic core for a fluorescent lighting transformer which comprises a T-shaped winding member 1 and two L-shaped yoke members 2, 3, the laminations for the three members are punched at 1a, 2a, 3a from adjacent parts of magnetic strip, protrusions being produced in each L-shaped lamination and corresponding notches in the T-shaped lamination. When assembled, each T-lamination 1a is reversed so that the notches 11, 12 increase the core reluctance of ballast winding 5 and the protrusions form magnetic shunts to decrease the coupling between the primary winding 4 and the starting winding 6. In another embodiment the notches are situated between the primary and ballast windings (Figs. 4-6, not shown).
GB33662/59A 1958-10-21 1959-10-05 Magnetic cores and method of forming same Expired GB890256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US890256XA 1958-10-21 1958-10-21

Publications (1)

Publication Number Publication Date
GB890256A true GB890256A (en) 1962-02-28

Family

ID=22215072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33662/59A Expired GB890256A (en) 1958-10-21 1959-10-05 Magnetic cores and method of forming same

Country Status (1)

Country Link
GB (1) GB890256A (en)

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