JPS5584856A - Non-contact point-type ignition apparatus - Google Patents

Non-contact point-type ignition apparatus

Info

Publication number
JPS5584856A
JPS5584856A JP15679678A JP15679678A JPS5584856A JP S5584856 A JPS5584856 A JP S5584856A JP 15679678 A JP15679678 A JP 15679678A JP 15679678 A JP15679678 A JP 15679678A JP S5584856 A JPS5584856 A JP S5584856A
Authority
JP
Japan
Prior art keywords
output
cut
transistor
potential
terminal
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
JP15679678A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ishikawa
Yuji Komiya
Hirobumi Kinoshita
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 JP15679678A priority Critical patent/JPS5584856A/en
Publication of JPS5584856A publication Critical patent/JPS5584856A/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 prevent an ignition timing lag resulting from an increase in rotational frequency for pickup coil SG whose output voltage slowly builds up, by varying the level by which an output transistor is turned on and off due to the output of pickup coil SG. CONSTITUTION:The potential of SG's terminal 1 is conducted to a base of transistor Q7 on the Schmit circuit (including Q7, Q6) through the intermediary of resistance R10, and further controls control transistor Q3 via Q6, Q5 and Q4. That is, if the output voltage of SG was increased in a normal direction and a potential of the terminal 1 reached a sufficient level for turning on Q7, Q3 is cut off, resulting in the turn-on of output transistors Q2, Q1. In the meantime, if the output of SG is reduced from a positive peak value, Q7 is cut off and Q3 is driven until it reaches a saturation state, while Q2 and Q1 are rapidly cut off. At this moment, high voltage is generated on the primary winding of ignition coil lg, causing a spark on ignition plug PLG through the secondary winding.
JP15679678A 1978-12-21 1978-12-21 Non-contact point-type ignition apparatus Pending JPS5584856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15679678A JPS5584856A (en) 1978-12-21 1978-12-21 Non-contact point-type ignition apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15679678A JPS5584856A (en) 1978-12-21 1978-12-21 Non-contact point-type ignition apparatus

Publications (1)

Publication Number Publication Date
JPS5584856A true JPS5584856A (en) 1980-06-26

Family

ID=15635491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15679678A Pending JPS5584856A (en) 1978-12-21 1978-12-21 Non-contact point-type ignition apparatus

Country Status (1)

Country Link
JP (1) JPS5584856A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257442A (en) * 1975-11-05 1977-05-11 Bosch Gmbh Robert Ignition apparatus for internal combustion engine
JPS5425336A (en) * 1977-07-29 1979-02-26 Hitachi Ltd Contactless igniter
JPS54158535A (en) * 1978-06-02 1979-12-14 Hitachi Ltd Non-contact ignition device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257442A (en) * 1975-11-05 1977-05-11 Bosch Gmbh Robert Ignition apparatus for internal combustion engine
JPS5425336A (en) * 1977-07-29 1979-02-26 Hitachi Ltd Contactless igniter
JPS54158535A (en) * 1978-06-02 1979-12-14 Hitachi Ltd Non-contact ignition device

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