GB1260243A - Miniaturized high-frequency transformer - Google Patents

Miniaturized high-frequency transformer

Info

Publication number
GB1260243A
GB1260243A GB21649/69A GB2164969A GB1260243A GB 1260243 A GB1260243 A GB 1260243A GB 21649/69 A GB21649/69 A GB 21649/69A GB 2164969 A GB2164969 A GB 2164969A GB 1260243 A GB1260243 A GB 1260243A
Authority
GB
United Kingdom
Prior art keywords
core
axial hole
screw
hole
driver slot
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
GB21649/69A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1260243A publication Critical patent/GB1260243A/en
Expired 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
    • H01F17/043—Fixed inductances of the signal type  with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
    • 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

1,260,243. Transformers. MATSUSHITA ELECTRIC INDUSTRIAL CO., Ltd. 28 April, 1969 [21 May, 1968], No. 21649/69. Heading H1T. An H.F. transformer comprises a terminal carrier member 1 having a threaded axial hole 2 and coil 3; a core supporter 5 (of thermoplastic resin) which (e.g. by means of soft ridges 7) is screwed into the hole 2 of terminal carrier member 1, which also has a screw-driver slot 8 and an axial hole; a ferrite cap-type core 13 with an axial centre portion 12 is inserted in the axial hole and has a screw-driver slot in its closed end; and a shielding cover enclosing the assembly. The core supporter 5 is fixed to the cap core 13 by prongs 10 which are inserted in holes and deformed by heat. The transformer may be mounted on a printed circuit board and its inductance adjusted from either the top or bottom. Terminals 17 and recesses 18 for leads are formed on the terminal member 1; and earth tags are formed on the cover.
GB21649/69A 1968-05-21 1969-04-28 Miniaturized high-frequency transformer Expired GB1260243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1968043032U JPS4712731Y1 (en) 1968-05-21 1968-05-21

Publications (1)

Publication Number Publication Date
GB1260243A true GB1260243A (en) 1972-01-12

Family

ID=12652578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21649/69A Expired GB1260243A (en) 1968-05-21 1969-04-28 Miniaturized high-frequency transformer

Country Status (5)

Country Link
US (1) US3528047A (en)
JP (1) JPS4712731Y1 (en)
DE (1) DE1925404A1 (en)
FR (1) FR2008964B1 (en)
GB (1) GB1260243A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510298A1 (en) * 1981-07-21 1983-01-28 Europ Composants Electron METHOD FOR MANUFACTURING AN INDUCTANCE AND JAR COMPRISING SAID INDUCTANCE
US4558295A (en) * 1982-11-05 1985-12-10 Spang & Company Tunable-inductance magnetically-soft ferrite core structures
DE8231240U1 (en) * 1982-11-08 1983-03-24 Kaschke KG GmbH & Co, 3400 Göttingen COIL BODY ARRANGEMENT FOR A COMPARABLE COIL
GB9304522D0 (en) * 1993-03-05 1993-04-21 Lucas Ind Plc Differential transformer arrangement
JP6645258B2 (en) * 2016-02-24 2020-02-14 スミダコーポレーション株式会社 Coil component and method for manufacturing coil component

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2318415A (en) * 1939-07-31 1943-05-04 Gen Electric High-frequency iron core
US2435630A (en) * 1945-06-02 1948-02-10 Automatic Mfg Corp Tuned transformer assembly
FR1005549A (en) * 1947-08-06 1952-04-11 Float craft
US2717984A (en) * 1951-12-27 1955-09-13 Bell Telephone Labor Inc Adjustable inductance device
US2823359A (en) * 1954-06-01 1958-02-11 Rca Corp Miniature intermediate-frequency transformer
GB931862A (en) * 1959-04-02 1963-07-17 Plessey Co Ltd Improvements in or relating to radio frequency transformers
US3155895A (en) * 1960-04-20 1964-11-03 Adams Electronics Inc Coil assembly with threaded stem core
FR1305711A (en) * 1961-10-23 1962-10-05 Vogt & Co K G Screw core for adjustable inductors, and method for its manufacture
US3227980A (en) * 1963-02-27 1966-01-04 Trw Inc Variable inductor employing spaced magnetic hubs
US3309640A (en) * 1964-06-10 1967-03-14 Oshima Musan Co Ltd High-frequency core device with relatively movable cores

Also Published As

Publication number Publication date
FR2008964B1 (en) 1974-05-24
US3528047A (en) 1970-09-08
FR2008964A1 (en) 1970-01-30
DE1925404A1 (en) 1969-12-04
JPS4712731Y1 (en) 1972-05-11
DE1925404B2 (en) 1970-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee