GB1308609A - Electric circuits for energising inductors - Google Patents

Electric circuits for energising inductors

Info

Publication number
GB1308609A
GB1308609A GB1308609DA GB1308609A GB 1308609 A GB1308609 A GB 1308609A GB 1308609D A GB1308609D A GB 1308609DA GB 1308609 A GB1308609 A GB 1308609A
Authority
GB
United Kingdom
Prior art keywords
inductor
capacitor
diode
inductors
transistor
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
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.)
CAV Ltd
Original Assignee
CAV 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 CAV Ltd filed Critical CAV Ltd
Publication of GB1308609A publication Critical patent/GB1308609A/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/04166—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
    • F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2082—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit being adapted to distribute current between different actuators or recuperate energy from actuators

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)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

1308609 Transistor switching circuits CAV Ltd 28 May 1970 [11 June 1969] 29515/69 Heading H3T An inductor 14 is connected in the circuit shown for periodical energization from a D.C. source 12, the arrangement being such that when the circuit is opened by first switching means (transistor 15) the energy stored in the inductor is used to charge capacitor 16 via diode 18, and that when the circuit is subsequently re-closed the voltage on the capacitor is added to that of the supply, second switch means (thyristor 17) being closed simultaneously with the first. When the capacitor is discharged energization continues at supply voltage via diode 13. The inductor may comprise a fuel valve in a fuel injection system for an I.C. engine. In Fig. 2 (not shown) a number of such inductors are energized in sequence; capacitor 16, diode 13 and thyristor 17 are common but each inductor is associated with a diode 18 and is connected to a common transistor 15 via its own tnyristor (19).
GB1308609D 1969-06-11 1969-06-11 Electric circuits for energising inductors Expired GB1308609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2951569 1969-06-11

Publications (1)

Publication Number Publication Date
GB1308609A true GB1308609A (en) 1973-02-21

Family

ID=10292758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308609D Expired GB1308609A (en) 1969-06-11 1969-06-11 Electric circuits for energising inductors

Country Status (7)

Country Link
JP (1) JPS4918140B1 (en)
BR (1) BR7019685D0 (en)
DE (1) DE2028435A1 (en)
ES (1) ES381134A1 (en)
FR (1) FR2051074A5 (en)
GB (1) GB1308609A (en)
YU (1) YU32445B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323400A1 (en) * 1982-07-10 1984-01-12 Lucas Industries Ltd., Birmingham, West Midlands POWER SUPPLY CIRCUIT
GB2310333A (en) * 1996-02-15 1997-08-20 Motorola Ltd Snubber circuit with energy recovery for boost voltage

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327693A (en) * 1980-02-01 1982-05-04 The Bendix Corporation Solenoid driver using single boost circuit
JPS5749059A (en) * 1980-09-08 1982-03-20 Toshiba Corp Driving circuit of injector
FR2506097A1 (en) * 1981-05-13 1982-11-19 Valeo Switching circuit for solenoid valve - has latching transistors controlled by pulses applied to one transistor base
FR2538942B1 (en) * 1982-12-29 1989-05-05 Renault CONTROL DEVICE FOR QUICK-OPERATING ELECTROMAGNETIC MEMBER (S), SUCH AS ELECTROVALVE (S) OR INJECTOR (S)
DE3408012A1 (en) 1984-03-05 1985-09-05 Gerhard Dipl.-Ing. Warren Mich. Mesenich ELECTROMAGNETIC INJECTION VALVE
US4688536A (en) * 1985-06-28 1987-08-25 Toyota Jidosha Kabushiki Kaisha Drive circuit for an electrostrictive actuator in a fuel injection valve
US4753207A (en) * 1986-10-30 1988-06-28 Allied Corporation Low voltage supply control system for fuel injectors
US4800480A (en) * 1987-10-30 1989-01-24 Allied-Signal Inc. Voltage doubler and system therefor
DE3741221C1 (en) * 1987-12-05 1989-03-30 Ant Nachrichtentech Arrangement for releasing a semiconductor switch from high reverse voltage stress and application therefor
DE4229538C2 (en) * 1992-09-04 2002-10-24 Bosch Gmbh Robert Circuit arrangement for controlling an electromagnetic consumer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323400A1 (en) * 1982-07-10 1984-01-12 Lucas Industries Ltd., Birmingham, West Midlands POWER SUPPLY CIRCUIT
GB2124044A (en) * 1982-07-10 1984-02-08 Lucas Ind Plc Power supply circuit
GB2310333A (en) * 1996-02-15 1997-08-20 Motorola Ltd Snubber circuit with energy recovery for boost voltage
GB2310333B (en) * 1996-02-15 2000-10-11 Motorola Ltd Switching circuit for an inductive load

Also Published As

Publication number Publication date
JPS4918140B1 (en) 1974-05-08
ES381134A1 (en) 1972-12-01
YU32445B (en) 1974-10-31
YU150070A (en) 1974-04-30
FR2051074A5 (en) 1971-04-02
BR7019685D0 (en) 1973-12-26
DE2028435A1 (en) 1970-12-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee