JPS57198922A - Igniter - Google Patents

Igniter

Info

Publication number
JPS57198922A
JPS57198922A JP8352181A JP8352181A JPS57198922A JP S57198922 A JPS57198922 A JP S57198922A JP 8352181 A JP8352181 A JP 8352181A JP 8352181 A JP8352181 A JP 8352181A JP S57198922 A JPS57198922 A JP S57198922A
Authority
JP
Japan
Prior art keywords
voltage
point
transistor
igniter
exceeds
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
JP8352181A
Other languages
Japanese (ja)
Other versions
JPS61524B2 (en
Inventor
Shuji Morio
Shigeru Shiragaki
Fusanosuke Shiino
Hideaki Hirakawa
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP8352181A priority Critical patent/JPS57198922A/en
Publication of JPS57198922A publication Critical patent/JPS57198922A/en
Publication of JPS61524B2 publication Critical patent/JPS61524B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F23Q3/004—Using semiconductor elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To protect a transistor securely at the time of passing a large surge current, by providing a clamping means which detects a power source voltage and restrics the maximum current supplied to the base of an oscillating transistor when the level of the power source voltage reaches or exceeds a set point. CONSTITUTION:In the igniter, a rise in the potential at a point a makes a transistor Q1 conductive, whereby a resonance circuit including a primary winding N1 of a booster transformer 6 is caused to resonate, resulting in an oscillating action. The oscillation output is boosted by a secondary winding N2, and a spark is generated by impressing a high voltage between spark electrodes 7. The igniter is provded with a clamping circuit 8 which includes resistances R5, R6 constituting a voltage-dividing circuit for generating at a point b a voltage proportional to the voltage between lines 4, 5, and the potential at the point a is lowered by making a transitor Q2 conductive when the voltage at the point b reaches or exceeds a set voltage which is determined by the Zener voltage of a Zener diode D3.
JP8352181A 1981-05-30 1981-05-30 Igniter Granted JPS57198922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8352181A JPS57198922A (en) 1981-05-30 1981-05-30 Igniter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8352181A JPS57198922A (en) 1981-05-30 1981-05-30 Igniter

Publications (2)

Publication Number Publication Date
JPS57198922A true JPS57198922A (en) 1982-12-06
JPS61524B2 JPS61524B2 (en) 1986-01-09

Family

ID=13804782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8352181A Granted JPS57198922A (en) 1981-05-30 1981-05-30 Igniter

Country Status (1)

Country Link
JP (1) JPS57198922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071247A2 (en) * 2005-12-22 2007-06-28 Danfoss A/S Electronic ignition circuit and a method for operating said circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071247A2 (en) * 2005-12-22 2007-06-28 Danfoss A/S Electronic ignition circuit and a method for operating said circuit
WO2007071247A3 (en) * 2005-12-22 2007-08-23 Danfoss As Electronic ignition circuit and a method for operating said circuit

Also Published As

Publication number Publication date
JPS61524B2 (en) 1986-01-09

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