JPS56146060A - Ignition circuit of internal combustion engine - Google Patents

Ignition circuit of internal combustion engine

Info

Publication number
JPS56146060A
JPS56146060A JP4975880A JP4975880A JPS56146060A JP S56146060 A JPS56146060 A JP S56146060A JP 4975880 A JP4975880 A JP 4975880A JP 4975880 A JP4975880 A JP 4975880A JP S56146060 A JPS56146060 A JP S56146060A
Authority
JP
Japan
Prior art keywords
main transistor
voltage
ignition coil
combustion engine
internal combustion
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
JP4975880A
Other languages
Japanese (ja)
Other versions
JPS6327546B2 (en
Inventor
Shunji Miura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP4975880A priority Critical patent/JPS56146060A/en
Publication of JPS56146060A publication Critical patent/JPS56146060A/en
Publication of JPS6327546B2 publication Critical patent/JPS6327546B2/ja
Granted 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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F02P1/083—Layout of circuits for generating sparks by opening or closing a coil circuit

Abstract

PURPOSE:To obtain a sufficiently large igniting energy by flowing a large current required for the main transistor constantly irrespective of the volume or waveform of the induction voltage of an ignition coil. CONSTITUTION:When a voltage which is positive on the side of a terminal A is induced at the primary winding 31 of the ignition coil 3, a current flows to the base of the main transistor 1 through between the terminals S and D of FET5, whereby the main transistor 1 is made conductive. Since the current flowing through FET5 is constant even when the voltage between A and C rises, the short-circuit current flowing to the main transistor 1 is kept fixed. When the voltage rises furthermore, a subtransistor 2 is made conductive. Thereby the main transistor 1 is interrupted and a large output voltage is generated at the secondary-side winding 32 of the ignition coil 3, whereby an ignition plug 4 is made to spark.
JP4975880A 1980-04-15 1980-04-15 Ignition circuit of internal combustion engine Granted JPS56146060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4975880A JPS56146060A (en) 1980-04-15 1980-04-15 Ignition circuit of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4975880A JPS56146060A (en) 1980-04-15 1980-04-15 Ignition circuit of internal combustion engine

Publications (2)

Publication Number Publication Date
JPS56146060A true JPS56146060A (en) 1981-11-13
JPS6327546B2 JPS6327546B2 (en) 1988-06-03

Family

ID=12840081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4975880A Granted JPS56146060A (en) 1980-04-15 1980-04-15 Ignition circuit of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56146060A (en)

Also Published As

Publication number Publication date
JPS6327546B2 (en) 1988-06-03

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