US3818277A - Start device for battery igniter - Google Patents

Start device for battery igniter Download PDF

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Publication number
US3818277A
US3818277A US00389250A US38925073A US3818277A US 3818277 A US3818277 A US 3818277A US 00389250 A US00389250 A US 00389250A US 38925073 A US38925073 A US 38925073A US 3818277 A US3818277 A US 3818277A
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US
United States
Prior art keywords
transistor
base voltage
base
battery
contact
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 - Lifetime
Application number
US00389250A
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English (en)
Inventor
E Gersing
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Braun GmbH
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Braun GmbH
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Publication date
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Publication of US3818277A publication Critical patent/US3818277A/en
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    • 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
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current

Definitions

  • This invention relates generally to electronic circuits and particularly relates to a circuit for starting a battery operated igniter particularly suitable for lighters.
  • Such battery igniters are arranged for the purpose of saving the battery so that the voltage converter is switched off after a spark passes through the spark gap. In order to generate a new spark the igniter must be operated again.
  • This problem is solved in accordance .with the present invention by providing an electronic circuit including a base voltage divider consisting of a resistor and a transistor connected in series.
  • the control electrode of this transistor is connected to the cut-out contact of a multiple way switch, while the closing contact of the switch is connected with the pole of the battery having a polarity such that it causes an increase of the conductivity of the base voltage transistor.
  • the cut-out contact of the multiple way switch is connected with one of the feeder conductors of the voltage converter and a capacitor is connected in parallel to the cut-out contact and the multiple way contact of the switch.
  • Such a starting circuit requires only a simple multiple way switch as its only mechanical component. Such a switch may be made relatively small. Furthermore, the circuit requires no more current than a conventional base voltage divider.
  • the base voltage divider includes two resistors between which is arranged the emitter-collector path of the base voltage transistor.
  • the free ends of the two resistors are connected to the feeder conductors of the voltage transformer so that the base of the base voltage transistor provides the control electrode.
  • the feedback branch of the oscillating transformer is arranged in series with the base emitter path of the oscillating transformer and parallel to the resistor of the base voltage divider connected with the cut-out contact of the multiple way switch.
  • FIGURE of the drawing is a circuit diagram illustrating a battery igniter provided with a starting circuit in accordance with the present invention.
  • the battery igniter illustrated in the drawng includes a battery 1 having a voltage of 3 volts. Connected in parallel to the battery there is provided an electrolytic capacitor 2 which serves the purpose to guarantee the proper operation of the igniter even when the battery has been heavily discharged.
  • the circuit further includes an npn transistor 5 which forms the oscillating transistor of a voltage converter and the emitter of which is connected with a feeder conductor 20 of the voltage converter. The collector is connected by means of the primary winding 6 of an oscillating transformer 9 with the other feeder conductor 21 connected to the positive pole of the battery.
  • the oscillating transformer further includes a feedback winding 7 as well as the secondary winding 8.
  • the feedback winding 7 is connected with one of its terminals to the base of the oscillating transformer 5 while its other terminal is connected to the junction point of a resistor 4 with the collector of a pnp base voltage transistor IS.
  • the other end of resistor 4 is connected with one of the feeder conductors 20.
  • the emitter of the base voltage transistor 15 is connected by means of a resistor 3 with the other feeder conductor 21.
  • a multiple way switch in such a way that the switching contact 19 is connected with the feeder conductor 20, the closing contact 17 with the negative pole of the battery 1 and the cut-out contact 18 with the base of the base voltage transistor 15.
  • a capacitor 16 is connected in parallel to the cut-out contact 18 and the switching contact 19.
  • a Villard rectifier circuit consisting of a charge capacitor 11, two diodes l2 and 13 and a charge storage capacitor 14.
  • the charge storage capacitor 14 delivers the energy for a spark gap 22 defined by electrodes 31, 32 which is fed by means of a switch 23 such as a thyristor or silicon controlled rectifier and an ignition transformer 24.
  • the circuit operates in the following manner.
  • the multiple way switch 10 is in its rest position wherein the switching contact 19 is connected with the cut-out contact 18. Accordingly, the capacitor 16 is short circuited.
  • the switching contact 19 is connected to the closing contact 17 so that the charge current of the capacitor 16 renders the base voltage transistor 15 conductive. Accordingly, a current flows through the resistors 3 and 4 so that the operating point of one side of the feedback winding 7 connected to the resistor 4 is raised to a more positive potential so that the oscillating transistor 5 is also driven into a higher state of conduction. As a result, a charge current flows in the primary winding 6 whereby the base voltage is further increased in view of the inductive voltage generated in the feedback winding 7. This process continues until the collector current has reached its maximum value and/or the ion core of the oscillating transformer 9 is saturated. Because the magnetic flux density in the oscillating transformer 9 does not increase any more, there is no more inductive voltage generated in the feedback winding 7 so that the oscillating transformer 5 is blocked.
  • circuit specification of the starting circuit of the invention may vary according to the design for any particular application.
  • circuit specifications are included by way of example only:
  • Start device for a battery igniter of the type having an oscillating transformer with a feedback branch and including a transistor voltage converter fed by a battery and a following rectifier to which is connected a charge storage capacitor which in turn feeds a spark gap defined by two electrodes by means of an ignition transformer, the feedback branch including a base voltage divider for the oscillating transformer of the voltage switch contact of said switch being connected with one of the conductors of said voltage converter and a capacitor connected in parallel to said cut-out contact and said closing contact.
  • said base voltage divider includes two resistors between which is connected the emitter-collector path of said base voltage transistor and wherein the free'ends of said resistors are connected to the conductors of said voltage converter and wherein the base of said base voltage transistor forms the control electrode.
US00389250A 1973-04-10 1973-08-17 Start device for battery igniter Expired - Lifetime US3818277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2317940A DE2317940A1 (de) 1973-04-10 1973-04-10 Starteinrichtung fuer batteriezuendvorrichtung

Publications (1)

Publication Number Publication Date
US3818277A true US3818277A (en) 1974-06-18

Family

ID=5877587

Family Applications (1)

Application Number Title Priority Date Filing Date
US00389250A Expired - Lifetime US3818277A (en) 1973-04-10 1973-08-17 Start device for battery igniter

Country Status (10)

Country Link
US (1) US3818277A (de)
JP (1) JPS50973A (de)
AT (1) AT322248B (de)
CH (1) CH555515A (de)
DE (1) DE2317940A1 (de)
ES (1) ES417295A1 (de)
FR (1) FR2225856B1 (de)
GB (1) GB1429216A (de)
IE (1) IE38479B1 (de)
IT (1) IT992214B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900768A (en) * 1973-09-18 1975-08-19 Mansei Kogyo Kk Electric spark generating device for ignitors
US3938938A (en) * 1974-03-04 1976-02-17 International Telephone And Telegraph Corporation Ignition system and components thereof
JPS5140475U (de) * 1974-09-13 1976-03-25
US4034270A (en) * 1973-12-07 1977-07-05 Johnson Controls, Inc. Self-inhibiting spark generating arrangement
US4891181A (en) * 1987-05-08 1990-01-02 Siemens Aktiengesellschaft Apparatus for controlled combustion of ignitable hydrogen-air mixtures in the containment of water-cooled nuclear reactor plants
US5864208A (en) * 1996-08-13 1999-01-26 Eg&G Corporation Spark gap device and method of manufacturing same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566764Y2 (de) * 1975-07-14 1981-02-14
JPS5314672U (de) * 1976-07-16 1978-02-07
JPS53116371U (de) * 1977-02-24 1978-09-16
JPS5483560U (de) * 1977-11-24 1979-06-13
JPH0330696Y2 (de) * 1987-03-27 1991-06-28
JPS63254317A (ja) * 1987-04-13 1988-10-21 Matsushita Electric Ind Co Ltd 点火装置
EP2096376A3 (de) 2008-02-07 2010-10-13 Fundación Cidaut Strangepresster Metallabsorber für Solarkollektor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045148A (en) * 1962-07-17 Ignition system with transistor control
US3311789A (en) * 1963-05-08 1967-03-28 Rowenta Metallwarenfab Gmbh Gas cigarette lighter with spark ignition
US3383553A (en) * 1965-09-27 1968-05-14 Rotax Ltd Spark ignition apparatus
US3384440A (en) * 1964-03-24 1968-05-21 Lab D Electronique Et D Automa Ignition devices
US3584929A (en) * 1969-12-29 1971-06-15 Motorola Inc Spark duration for capacitor discharge ignition systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045148A (en) * 1962-07-17 Ignition system with transistor control
US3311789A (en) * 1963-05-08 1967-03-28 Rowenta Metallwarenfab Gmbh Gas cigarette lighter with spark ignition
US3384440A (en) * 1964-03-24 1968-05-21 Lab D Electronique Et D Automa Ignition devices
US3383553A (en) * 1965-09-27 1968-05-14 Rotax Ltd Spark ignition apparatus
US3584929A (en) * 1969-12-29 1971-06-15 Motorola Inc Spark duration for capacitor discharge ignition systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900768A (en) * 1973-09-18 1975-08-19 Mansei Kogyo Kk Electric spark generating device for ignitors
US4034270A (en) * 1973-12-07 1977-07-05 Johnson Controls, Inc. Self-inhibiting spark generating arrangement
US3938938A (en) * 1974-03-04 1976-02-17 International Telephone And Telegraph Corporation Ignition system and components thereof
JPS5140475U (de) * 1974-09-13 1976-03-25
US4891181A (en) * 1987-05-08 1990-01-02 Siemens Aktiengesellschaft Apparatus for controlled combustion of ignitable hydrogen-air mixtures in the containment of water-cooled nuclear reactor plants
US5864208A (en) * 1996-08-13 1999-01-26 Eg&G Corporation Spark gap device and method of manufacturing same

Also Published As

Publication number Publication date
IE38479B1 (en) 1978-03-29
AT322248B (de) 1975-05-12
ES417295A1 (es) 1976-03-16
DE2317940A1 (de) 1974-10-24
GB1429216A (en) 1976-03-24
FR2225856A1 (de) 1974-11-08
CH555515A (de) 1974-10-31
FR2225856B1 (de) 1978-03-17
IE38479L (en) 1974-10-10
JPS50973A (de) 1975-01-08
IT992214B (it) 1975-09-10

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