[go: up one dir, main page]

GB1288814A - - Google Patents

Info

Publication number
GB1288814A
GB1288814A GB1288814DA GB1288814A GB 1288814 A GB1288814 A GB 1288814A GB 1288814D A GB1288814D A GB 1288814DA GB 1288814 A GB1288814 A GB 1288814A
Authority
GB
United Kingdom
Prior art keywords
winding
transistor
turns
voltage
capacitor
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.)
Expired
Application number
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
Priority claimed from JP43071122A external-priority patent/JPS5014302B1/ja
Application filed filed Critical
Publication of GB1288814A publication Critical patent/GB1288814A/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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/10—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having continuous electric sparks
    • 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
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/0876—Layout of circuits the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance
    • F02P3/0884—Closing the discharge circuit of the storage capacitor with semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/30—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1288814 Pulse generators; generating oscillations HITACHI Ltd 30 Sept 1969 [2 Oct 1968 (3)] 48114/69 Headings H3B and H3T [Also in Division F1] An electric pulse generator, such as for ignition of a car I.C. engine, has a series circuit composed of terminals for a D.C. source 1, an induction winding 5 and a semi-conductor switching element 8, a capacitor 9 charged via a diode 7 by a voltage induced in the induction winding 5, or another winding (22, Fig. 4) coupled to the induction winding 5, due to interrupting the current through the induction winding 5 by the semi-conductor element 8 being turned off due to current saturation of the induction winding 5 and a closed circuit for the discharge of the capacitor 9, at the instant when the semiconductor element 8 is made conductive by a positive feedback circuit 5, 6 composed of a load 11 and a semi-conductor switching element, e.g. 8 and/or 20. When an ignition switch in line 2 (not shown) is closed a voltage via differentiating circuit 17, 18 turns transistor 8 on. This produces a voltage in winding 5 which induces a positive feedback voltage in winding 6 to turn the transistor 8 on more. When the current through winding 5 reaches saturation the voltage in the winding 6 decreases and transistor 8 turns off. A voltage is then induced in winding 5 and this charges capacitor 9; contact 15 then closes and on reopening a pulse from the differentiating circuit 17, 18 again turns on transistor 8. Capacitor 9 is now discharged via the transistor 8 and primary winding 12 of an ignition coil 11 which co-operate with diode 19 to produce oscillations (Fig. 2d, at time t 3 , not shown) from the output winding 13 for a spark plug 14. A current regulator may be inserted in the base circuit of 8 so as to ensure that the current energy stored in winding 5 when transistor 8 turns off can be constant. The pulse generator can be modified by including an SCR 20 in series with the transistor 8 (Fig. 4) (Figs. 3 and 5, not shown), so that the SCR 20 turns on and off when the transistor turns on and off. The SCR and diode 7 then act to protect the transistor 8 when it is off against emitter-collector breakdown. In a further modification (Fig. 6, not shown), the capacitor 9 is charged and discharged from a tertiary winding 22 of the magnetic core 4 by a gate turn off GTO thyristor 23 turned on and off by control of its gate from the winding 6 as transistor 8 is turned on and off.
GB1288814D 1968-10-02 1969-09-30 Expired GB1288814A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP43071122A JPS5014302B1 (en) 1968-10-02 1968-10-02
JP7113168 1968-10-02
JP7112668 1968-10-02

Publications (1)

Publication Number Publication Date
GB1288814A true GB1288814A (en) 1972-09-13

Family

ID=27300554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288814D Expired GB1288814A (en) 1968-10-02 1969-09-30

Country Status (2)

Country Link
US (1) US3626200A (en)
GB (1) GB1288814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418344A1 (en) * 1978-02-22 1979-09-21 Bosch Gmbh Robert IGNITION SYSTEM, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
GB2219087A (en) * 1988-05-27 1989-11-29 Natural Environment Res Seismic wave generating apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853107A (en) * 1973-01-11 1974-12-10 Eltra Corp Capacitive discharge ignition system
US3882839A (en) * 1973-08-27 1975-05-13 David P Ganoung Capacitive discharge ignition system utilizing a feedback controlled oscillator
US3978838A (en) * 1974-02-14 1976-09-07 Oister George K D-C power supply and ignition system
US4345576A (en) * 1979-09-24 1982-08-24 Super Shops, Inc. Multi-spark CD ignition
US5274271A (en) * 1991-07-12 1993-12-28 Regents Of The University Of California Ultra-short pulse generator
US5638799A (en) * 1996-05-22 1997-06-17 General Motors Corporation Double strike ignition control
US5636620A (en) * 1996-05-22 1997-06-10 General Motors Corporation Self diagnosing ignition control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308801A (en) * 1964-07-23 1967-03-14 Westinghouse Electric Corp Capacitive discharge ignition system
GB1111791A (en) * 1965-03-10 1968-05-01 Lucas Industries Ltd Spark ignition systems
GB1109157A (en) * 1965-03-11 1968-04-10 Lucas Industries Ltd Spark ignition systems
GB1136913A (en) * 1965-05-05 1968-12-18 Lucas Industries Ltd Spark ignition systems
US3291110A (en) * 1965-09-02 1966-12-13 Jasper N Cunningham High voltage circuit for automobile engine ignition
US3496921A (en) * 1968-08-01 1970-02-24 Ford Motor Co Capacitive storage ignition system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418344A1 (en) * 1978-02-22 1979-09-21 Bosch Gmbh Robert IGNITION SYSTEM, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
GB2219087A (en) * 1988-05-27 1989-11-29 Natural Environment Res Seismic wave generating apparatus
GB2219087B (en) * 1988-05-27 1992-07-22 Natural Environment Res Seismic wave generating apparatus

Also Published As

Publication number Publication date
US3626200A (en) 1971-12-07

Similar Documents

Publication Publication Date Title
US3407795A (en) Ignition system for internal combustion engines
GB1119993A (en) Improvements in radar camouflage nets
GB1288814A (en)
ES420938A1 (en) Internal combustion engine magneto ignition system of the shunt switch type
GB1204460A (en) Ignition system for an internal combustion engine
GB1371042A (en) Spark generating systems for internal combustion engines
GB1293154A (en) A switching device for power supply circuit
US3051870A (en) Ignition system
GB1532298A (en) Safety circuit for the ignition system of an internal combustion engine and an ignition system incorporating the safety circuit
ES353706A1 (en) Condenser discharge type ignition system with a magneto power supply
GB951359A (en) Ignition systems
US3140423A (en) Spark ignition apparatus for internal combustion engine
ES358819A1 (en) Arrangement for the controlled electronic ignition of internal combustion engines
GB1117181A (en) Spark ignition systems
GB1030863A (en) Spark ignition systems
US3445723A (en) Ignition system applying induced voltage to the coil primary
GB1268290A (en) Improvements in and relating to ignition devices for internal combustion engines
US3623466A (en) Current transfer electrical system
US4448182A (en) Ignition system for internal combustion engines
US3327164A (en) High-voltage ignition system for internal combustion engines
GB1109157A (en) Spark ignition systems
GB1261040A (en) Improvements in or relating to switching circuits for energy storing inductive devices
US3877453A (en) Ignition system for internal combustion engines
US3366098A (en) Current transfer electrical ignition system
US3379182A (en) Ignition system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees