JPS54152718A - Current limiting circuit for ignitor - Google Patents

Current limiting circuit for ignitor

Info

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
Application number
JP6124378A
Other languages
Japanese (ja)
Inventor
Yasuo Taguchi
Satoshi Nakao
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6124378A priority Critical patent/JPS54152718A/en
Publication of JPS54152718A publication Critical patent/JPS54152718A/en
Pending legal-status Critical Current

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.
JP6124378A 1978-05-23 1978-05-23 Current limiting circuit for ignitor Pending JPS54152718A (en)

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)

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