GB932737A - Electrical apparatus incorporating a transistor switch - Google Patents
Electrical apparatus incorporating a transistor switchInfo
- Publication number
- GB932737A GB932737A GB2418859A GB2418859A GB932737A GB 932737 A GB932737 A GB 932737A GB 2418859 A GB2418859 A GB 2418859A GB 2418859 A GB2418859 A GB 2418859A GB 932737 A GB932737 A GB 932737A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- primary
- coil
- turns
- windings
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/045—Layout of circuits for control of the dwell or anti dwell time
- F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
932,737. Ignition coils. ELECTRIC AUTOLITE CO. July 14, 1959, No. 24188/59. Class 38 (2). [Also in Group XXVII] An ignition coil for an engine ignition system (see also Group XXVII) is described. It has been found very effective to make the core 43 of high permeability steel or of magnetic materials capable of carrying a very high magnetic flux per unit of cross-sectional area and that a core produced of grain oriented high percentage silicon steel serves the purpose very successfully. The core 43 is preferably formed of a multi-turn winding of a ribbon of grainoriented high silicon steel coated to separate and hold in position its turns an air gap 45 ranging from 0.005 to 0.30 inches serves its purpose very effectively, a thin plate 47 of non- magnetizable material is inserted in the gap. The primary winding has a relatively low inductance and utilizes comparatively few turns. The coil has a very high turn ratio between its primary and secondary windings. The coil is compared to conventional coils. In Fig. 2 the ignition coil comprises a core formed by two U-shaped sections facing each other and separated by air gaps 45<SP>1</SP>. Either the primary or the secondary may be in close proximity to the core and surrounded by the remaining winding. Details are given of the inductances and current carrying capacities of the primary windings and the number of turns of the windings are quoted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2418859A GB932737A (en) | 1959-07-14 | 1959-07-14 | Electrical apparatus incorporating a transistor switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2418859A GB932737A (en) | 1959-07-14 | 1959-07-14 | Electrical apparatus incorporating a transistor switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB932737A true GB932737A (en) | 1963-07-31 |
Family
ID=10207787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2418859A Expired GB932737A (en) | 1959-07-14 | 1959-07-14 | Electrical apparatus incorporating a transistor switch |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB932737A (en) |
-
1959
- 1959-07-14 GB GB2418859A patent/GB932737A/en not_active Expired
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