US3629651A - Pulse-generating apparatus - Google Patents

Pulse-generating apparatus Download PDF

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Publication number
US3629651A
US3629651A US861120A US3629651DA US3629651A US 3629651 A US3629651 A US 3629651A US 861120 A US861120 A US 861120A US 3629651D A US3629651D A US 3629651DA US 3629651 A US3629651 A US 3629651A
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US
United States
Prior art keywords
gap
condenser
circuit
condensers
spark gap
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
US861120A
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English (en)
Inventor
Irving E Linkroum
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.)
Bendix Corp
Unison Industries LLC
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of US3629651A publication Critical patent/US3629651A/en
Anticipated expiration legal-status Critical
Assigned to IGNITION PRODUCTS CORPORATION reassignment IGNITION PRODUCTS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED-SIGNAL INC.
Assigned to HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. reassignment HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNISON INDUSTRIES LIMITED PARTNERSHIP
Assigned to UNISON INDUSTRIES LIMITED PARTNERSHIP, 530 BLACKHAWK PARK AVE., ROCKFORD, ILLINOIS 61108, A DE. LIMITED PARTNERSHIP reassignment UNISON INDUSTRIES LIMITED PARTNERSHIP, 530 BLACKHAWK PARK AVE., ROCKFORD, ILLINOIS 61108, A DE. LIMITED PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: IGNITION PRODUCTS CORPORATION
Expired - Lifetime legal-status Critical Current

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    • 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
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H03K3/537—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a spark gap

Definitions

  • This invention relates to electrical apparatus and more particularly to means for controlling the operation of electrical pulse or spark-generating apparatus having an intermittently discharged storage condenser.
  • An object of the present invention is to provide novel control means for an electrical pulse or spark generating apparatus of the type indicated.
  • Another object is to provide a novel control means for an electrical pulse or spark-generating apparatus incorporating a storage condenser which is intermittently discharged through a control gap.
  • a further object is toprovide meansfor controlling breakdown of the control gap, such meansbeing subjected to only a small part of the energy which is discharged through the control gap.
  • a still further object of the invention is to provide acontrol means for electrical pulse-generating apparatus which is simple, rugged,'and long lived, and which .provides maximum power output for a given input voltage.
  • FIGURE of the drawing is a wiring diagram of one embodiment of an electrical pulse or spark generating circuit in accordance with the invention.
  • the circuit shown in the drawing is adapted for use asan untimed ignition circuit for jet and gas turbine type engines.
  • the invention is not, however, limited to such uses or systems.
  • the ignition circuit shown is of the condenser dischargetype which is energized by a suitable source 13 of alternating electrical current or a source of interrupted direct current connected to input terminals A and -B of the ignition circuit.
  • the current source is connected to the primary winding .10 of a power input transformer 11 having a secondary winding 12.
  • the circuit includes a radiofrequency-filtering means 14 which is preferably, although not necessarily .employed, the means 14 being interposed between the power source and the transformer 11 to attenuate high-frequency noise generated within the ignition circuit and thus preventing interference from being transmitted to other circuits connected to the current source.
  • a voltage-doubling type of energy storage means is con- Such storage means is incrementally charged by the energy source through transformer 11; the energy storage means is periodically discharged to a pulse-absorbing load, which in this instance is an ignition spark gap 29.
  • the storage means comprises a small condenser 15 which is connected across the secondary winding 12 through a diode or half-wave rectifier 16, a second small condenser 17 connected across winding 12 through a reversely polarized diode or half-wave rectifier 19, and a main relatively large tank condenser connected across condensers 15 and 17 in series.
  • the input electrode 24 of the trigger gap 25 is connected to the high potential side of the ignition circuit beyond the main tank condenser20.
  • the output electrode 26 of the trigger gap 25 is connected to one terminal of the secondary winding 27 of a step-up transformer 28, the other terminal of the secondary winding 27 being connected to the ungrounded electrode of the ignition spark gap 29.
  • a circuit having a large resistance 30 and a small condenser 31 in series Connected to the high potential side of the ignition circuit between the point of connection of the condenser 31 and the input terminal of the secondary winding 27 of transformer 28 is one terminal of a small resistance 33, the other terminal of which is connected to ground.
  • One terminal of the primary winding 35 of the step-up transformer 28 is connected between the resistance 30 and the condenser 31 through a control gap 36 having an input electrode 34 and a discharge electrode 37, the other tenninal of the primary winding 35 being connected to ground.
  • the ionizing or breakdown voltage of the trigger gap 25 is substantially less than that of the control gap 36 and much less than that of igniter gap 29.
  • the power transfonner 11 steps up the supply voltage, which in this instance is assumed to be 400 cycle, ll5 volt, to a level in excess of 1,600 volts peak. Each half-cycle of this voltage is rectified by one of the diodes 16, 19 to charge one of the doubler condensers 15, 17. The voltage across condensers 15, 17 is additive and therefore the voltage charging the main storage condenser 20 and trigger condenser 31 is in excess of 3,000 volts peak and of gap 25 breakdown voltage.
  • Gap 36 now begins to discharge the charge of the storage condenser 20, 31 through the primary winding 35 of the step-up transformer 28 to ionize the igniter gap 29. While this is taking place, the trigger gap 25 remains conductive, and the main part of the charge on condenser 20 is discharged to the ignition gap 29 through the secondary 27 of transformer 28.
  • the circuit of the invention allows fewer turns to be employed in the secondary 27 of the high-frequency transformer 28. Hence a higher peak discharge current can be obtained through the secondary 27.
  • the trigger gap 25 controls the ionization of the control gap 36.
  • the normal ionization voltage of the gap 36 is much higher than the level at which gap 25 and hence at which the system is triggered.
  • the main tank or storage condenser 20 may be incrementally charged through other known voltage-doubling systems or through a half-wave rectifier.
  • Transformer 11 may also be powered by an interrupted direct current source or solid state oscillator.
  • Various other changes may also be made, such as in the electrical values suggested herein by way of example, and in the types of rectifiers illustrated without departing from the spirit and scope of the invention, as will now be apparent to those skilled in the art.
  • Electrical apparatus having a source of electrical energy, a multisection storage condenser means connected to said source so as to be incrementally charged thereby with the sections of the condenser means connected in parallel, a load circuit connected to be energized by the discharge of the storage condenser means, a first control gap interposed between one section of the storage condenser means and the load circuit, a second control gap having a breakdown potential greater than that of the first control gap and less than the sum of the voltages of the charges attainable by the parallel connected sections of the storage condenser means, first circuit means connecting the first gap to the storage condenser means so that the first gap is ionized and rendered conductive when the charge on the parallel connected sections of the storage condenser means reaches a predetermined voltage, and second circuit means for thereupon connecting said sections of the storage condenser means in series, voltage-adding relation and subjecting said gaps to the full voltage of the series connected storage condenser sections so as to ionize the second control gap and render it conductive to
  • the storage condenser means has two sections, and said second circuit means includes the second gap interposed between the junction between said sections and a common conductor to which the load circuit is connected.
  • the load circuit includes a transformer winding, the first gap has entering and discharge electrodes, and the discharge electrode is connected to the said winding of the transformer.
  • Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condenser means connected in parallel across said source to be simultaneously charged thereby, a condenser discharge circuit connected across said second condenser means and comprising normally open circuit-closing means responsive to a predetennined charge on said second condenser means for closing said circuit, and a second condenser discharge circuit comprising other normally open circuit-closing means and said first and second condenser means connected in series across said firstnamed circuit-closing means, said other circuit-closing means being responsive to the sum of the charges on said first and second condenser means to close said second discharge circuit while said first-named circuit-closing means is operative.
  • Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condensers connected to be charged in parallel by said source, a first spark gap connected between the positive polarity terminal of one of said condensers and the negative polarity terminal of the other of said condensers, a second spark gap connected between the other terminals of said condensers, and condenser discharge circuit means including said second spark gap connected across and adapted to be rendered conductive by the charge on said second condenser, whereby said condensers and said second spark gap become connected in series across said first spark gap while the second spark gap is conductive.
  • Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultaneously charged thereby, a first discharge circuit comprising said first condenser and a first spark gap adapted to be rendered conductive by a predetermined charge on said first condenser, and a second discharge circuit comprising said first gap and said first and second condensers connected in series across a second spark gap having a spark-over voltage less than the sum of the charges on said condensers when said first gap is rendered conductive.
  • Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultane-- ously charged thereby, first and second normally conductive spark gaps, a first discharge circuit comprising said condensers and said spark gaps connected in series, and a second discharge circuit comprising said second condenser in series with said second spark gap, the latter being adapted to be rendered conductive when said second condenser attains a predetermined charge, and said first spark gap being adapted to be rendered conductive in response to the sum of the charges on said condensers when said second spark gap is rendered conductive.
  • Apparatus as defined in claim 12 comprising a transformer having primary and secondary windings, said primary winding being series connected in said first discharge circuit, a third spark gap connected across said secondary winding, and a third discharge circuit comprising said second spark gap, said secondary winding and said third spark gap connected in series across said first condenser.

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Generation Of Surge Voltage And Current (AREA)
US861120A 1969-09-25 1969-09-25 Pulse-generating apparatus Expired - Lifetime US3629651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86112069A 1969-09-25 1969-09-25

Publications (1)

Publication Number Publication Date
US3629651A true US3629651A (en) 1971-12-21

Family

ID=25334935

Family Applications (1)

Application Number Title Priority Date Filing Date
US861120A Expired - Lifetime US3629651A (en) 1969-09-25 1969-09-25 Pulse-generating apparatus

Country Status (8)

Country Link
US (1) US3629651A (ja)
JP (1) JPS4823725B1 (ja)
AU (1) AU2029770A (ja)
CA (1) CA921551A (ja)
DE (1) DE2047152C3 (ja)
FR (1) FR2065709B2 (ja)
GB (1) GB1330504A (ja)
IT (1) IT957042B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063161A (en) * 1975-04-14 1977-12-13 Joslyn Mfg. And Supply Co. Buried cable fault locator with earth potential indicator and pulse generator
US5041766A (en) * 1987-08-03 1991-08-20 Ole K. Nilssen Power-factor-controlled electronic ballast

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434039Y2 (ja) * 1974-07-23 1979-10-19
JPS5727953Y2 (ja) * 1976-04-13 1982-06-18
JPS5712282Y2 (ja) * 1976-04-15 1982-03-11
JPS5729373Y2 (ja) * 1976-04-30 1982-06-28
JPS5915826U (ja) * 1982-07-21 1984-01-31 株式会社池貝 移動台の案内装置
DE3513422C2 (de) * 1985-04-15 1993-10-28 Beru Werk Ruprecht Gmbh Co A Zündanlage für Brennkraftmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106667A (en) * 1959-08-04 1963-10-08 Cons Electronics Ind Timing circuit
US3191093A (en) * 1961-10-30 1965-06-22 Bendix Corp Ignition system employing saturable core reset by relaxation oscillator
US3450942A (en) * 1967-04-10 1969-06-17 Bendix Corp Electrical pulse generating system
US3450972A (en) * 1967-04-10 1969-06-17 Bendix Corp Electrical pulse generating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106667A (en) * 1959-08-04 1963-10-08 Cons Electronics Ind Timing circuit
US3191093A (en) * 1961-10-30 1965-06-22 Bendix Corp Ignition system employing saturable core reset by relaxation oscillator
US3450942A (en) * 1967-04-10 1969-06-17 Bendix Corp Electrical pulse generating system
US3450972A (en) * 1967-04-10 1969-06-17 Bendix Corp Electrical pulse generating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063161A (en) * 1975-04-14 1977-12-13 Joslyn Mfg. And Supply Co. Buried cable fault locator with earth potential indicator and pulse generator
US5041766A (en) * 1987-08-03 1991-08-20 Ole K. Nilssen Power-factor-controlled electronic ballast

Also Published As

Publication number Publication date
CA921551A (en) 1973-02-20
FR2065709A2 (ja) 1971-08-06
DE2047152C3 (de) 1973-11-22
IT957042B (it) 1973-10-10
DE2047152A1 (de) 1971-04-01
FR2065709B2 (ja) 1973-01-12
AU2029770A (en) 1972-03-30
JPS4823725B1 (ja) 1973-07-16
GB1330504A (en) 1973-09-19
DE2047152B2 (de) 1973-04-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC.

Free format text: SECURITY INTEREST;ASSIGNOR:UNISON INDUSTRIES LIMITED PARTNERSHIP;REEL/FRAME:005012/0090

Effective date: 19890106

Owner name: IGNITION PRODUCTS CORPORATION

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED-SIGNAL INC.;REEL/FRAME:005012/0079

Effective date: 19881231

AS Assignment

Owner name: UNISON INDUSTRIES LIMITED PARTNERSHIP, 530 BLACKHA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:IGNITION PRODUCTS CORPORATION;REEL/FRAME:005164/0245

Effective date: 19890106