JPS54152718A - Current limiting circuit for ignitor - Google Patents
Current limiting circuit for ignitorInfo
- Publication number
- JPS54152718A JPS54152718A JP6124378A JP6124378A JPS54152718A JP S54152718 A JPS54152718 A JP S54152718A JP 6124378 A JP6124378 A JP 6124378A JP 6124378 A JP6124378 A JP 6124378A JP S54152718 A JPS54152718 A JP S54152718A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- becomes
- ignition coil
- electric current
- ignitor
- 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.)
- Pending
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
- F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
- F02P3/051—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
PURPOSE:To provide a circuit for being composed of a less number of components and having an improved characteristic, by supplying a bias to a base of a transistor driving an output transistor and by supplying to an emitter a voltage which corresponds to a current value flowing to an ignition coil. CONSTITUTION:When an electric current of an ignition coil 4 is less than a given value, a transistor 31 becomes to be more ON, a transistor 35 becomes to be more OFF and a transistor 18 also becomes to be more ON. Then a base current of a transistor 21 increases and as a result the transistor 21 becomes to be more ON, and this causes an output transistor 5 to become to be more ON as well. The electric current of the ignition coil 4 thus increases. On the other hand, when the electric current of the ignition coil is more than the given value, a reverse action is provided, and thus, the output transistor 5 becomes to be more OFF and as a result the electric current of the ignition coil decreases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6124378A JPS54152718A (en) | 1978-05-23 | 1978-05-23 | Current limiting circuit for ignitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6124378A JPS54152718A (en) | 1978-05-23 | 1978-05-23 | Current limiting circuit for ignitor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54152718A true JPS54152718A (en) | 1979-12-01 |
Family
ID=13165587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6124378A Pending JPS54152718A (en) | 1978-05-23 | 1978-05-23 | Current limiting circuit for ignitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54152718A (en) |
-
1978
- 1978-05-23 JP JP6124378A patent/JPS54152718A/en active Pending
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