GB1260243A - Miniaturized high-frequency transformer - Google Patents
Miniaturized high-frequency transformerInfo
- 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
Links
- 229920005992 thermoplastic resin Polymers 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
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.
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)
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)
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 |
-
1968
- 1968-05-21 JP JP1968043032U patent/JPS4712731Y1/ja not_active Expired
-
1969
- 1969-04-28 GB GB21649/69A patent/GB1260243A/en not_active Expired
- 1969-05-05 FR FR6914276A patent/FR2008964B1/fr not_active Expired
- 1969-05-09 US US823271A patent/US3528047A/en not_active Expired - Lifetime
- 1969-05-19 DE DE19691925404 patent/DE1925404A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1925404A1 (en) | 1969-12-04 |
FR2008964B1 (en) | 1974-05-24 |
FR2008964A1 (en) | 1970-01-30 |
JPS4712731Y1 (en) | 1972-05-11 |
DE1925404B2 (en) | 1970-09-10 |
US3528047A (en) | 1970-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1159312A (en) | A Transformer | |
GB1293886A (en) | High-frequency coil | |
GB1302977A (en) | ||
GB1260243A (en) | Miniaturized high-frequency transformer | |
GB1011082A (en) | Electrical connector | |
GB1257537A (en) | ||
GB1236498A (en) | Improvements in or relating to adjustable inductors | |
US3011138A (en) | Transformer | |
GB1401402A (en) | Coil former | |
GB1136284A (en) | Adjustable inductor | |
GB1055808A (en) | Improvements in or relating to inductance coil assemblies | |
GB1088682A (en) | High frequency coil device | |
GB1236687A (en) | Double-tuned intermediate-frequency transformer | |
ES452029A1 (en) | Supporting device for mounting a magnetic core on a printed circuit card | |
GB1125275A (en) | Improvements relating to electromagnetic apparatus | |
GB902501A (en) | Improvements in miniature inductance devices | |
SU955231A1 (en) | Inductivity coil | |
GB873327A (en) | Ignition coils | |
GB1015530A (en) | Improvements in or relating to electrical coil assemblies | |
GB1026564A (en) | Sealed electromagnetic relays | |
GB956761A (en) | Improvements in or relating to variable high-frequency shielded inductors | |
GB828738A (en) | Improvements in or relating to encapsulated electrical components | |
GB1021320A (en) | Microminiature electrical connection | |
JPS6455813A (en) | Electromagnetic device | |
GB1256076A (en) | Electromagnetic coils |
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 |