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JPS55123362A - Semiconductor type ignition device - Google Patents

Semiconductor type ignition device

Info

Publication number
JPS55123362A
JPS55123362A JP2905579A JP2905579A JPS55123362A JP S55123362 A JPS55123362 A JP S55123362A JP 2905579 A JP2905579 A JP 2905579A JP 2905579 A JP2905579 A JP 2905579A JP S55123362 A JPS55123362 A JP S55123362A
Authority
JP
Japan
Prior art keywords
power transistor
generator
ignition device
cut
high voltage
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.)
Granted
Application number
JP2905579A
Other languages
Japanese (ja)
Other versions
JPS5925115B2 (en
Inventor
Minoru Nishida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2905579A priority Critical patent/JPS5925115B2/en
Publication of JPS55123362A publication Critical patent/JPS55123362A/en
Publication of JPS5925115B2 publication Critical patent/JPS5925115B2/en
Expired 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
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—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 protect a power transistor by a method wherein the switching operation of the power transistor which controls the current flow to an ignition coil and the power transistor at the time of high voltage are compulsorily cut off. CONSTITUTION:If positive signal voltage is sent from a generator 1, a power transistor 12 is turned on, then current flows to an ignition coil 13. If the signal from the generator 1 is changed to negative one, the base current toward the power transistor 12 is cut, and the power transistor 12 is quickly turned off, then a spark is produced on an ignition plug 14. If the power source voltage increases and exceeds the specified value, a zener diode 8 conducts. Then the power transistor is forced to turn off, and thus protected from being damaged by an abnormally high voltage.
JP2905579A 1979-03-12 1979-03-12 Semiconductor type engine ignition system Expired JPS5925115B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2905579A JPS5925115B2 (en) 1979-03-12 1979-03-12 Semiconductor type engine ignition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2905579A JPS5925115B2 (en) 1979-03-12 1979-03-12 Semiconductor type engine ignition system

Publications (2)

Publication Number Publication Date
JPS55123362A true JPS55123362A (en) 1980-09-22
JPS5925115B2 JPS5925115B2 (en) 1984-06-14

Family

ID=12265681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2905579A Expired JPS5925115B2 (en) 1979-03-12 1979-03-12 Semiconductor type engine ignition system

Country Status (1)

Country Link
JP (1) JPS5925115B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310574Y2 (en) * 1985-07-09 1991-03-15
JPS63184513U (en) * 1987-05-19 1988-11-28
JPS6445420U (en) * 1987-09-10 1989-03-20
JPH01251521A (en) * 1987-12-16 1989-10-06 Yazaki Corp Grommet

Also Published As

Publication number Publication date
JPS5925115B2 (en) 1984-06-14

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