DE3752149D1 - Steuerungsschaltung für Steuerungsolenoid mit Überspannung beim Anfang - Google Patents

Steuerungsschaltung für Steuerungsolenoid mit Überspannung beim Anfang

Info

Publication number
DE3752149D1
DE3752149D1 DE3752149T DE3752149T DE3752149D1 DE 3752149 D1 DE3752149 D1 DE 3752149D1 DE 3752149 T DE3752149 T DE 3752149T DE 3752149 T DE3752149 T DE 3752149T DE 3752149 D1 DE3752149 D1 DE 3752149D1
Authority
DE
Germany
Prior art keywords
overvoltage
beginning
control
control circuit
solenoid
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 - Fee Related
Application number
DE3752149T
Other languages
English (en)
Other versions
DE3752149T2 (de
Inventor
Arthur James Edwards
Randall Charles Gray
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DE3752149D1 publication Critical patent/DE3752149D1/de
Application granted granted Critical
Publication of DE3752149T2 publication Critical patent/DE3752149T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32Energising current supplied by semiconductor device
    • H01H47/325Energising current supplied by semiconductor device by switching regulator
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04Modifications for accelerating switching
    • H03K17/041Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04Modifications for accelerating switching
    • H03K17/041Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2003Output 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
    • F02D2041/2013Output 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 voltage source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2017Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2031Control of the current by means of delays or monostable multivibrators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2041Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for controlling the current in the free-wheeling phase
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/20Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844Monitoring or fail-safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Electronic Switches (AREA)
DE3752149T 1986-10-02 1987-07-31 Steuerungsschaltung für Steuerungsolenoid mit Überspannung beim Anfang Expired - Fee Related DE3752149T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/914,702 US4729056A (en) 1986-10-02 1986-10-02 Solenoid driver control circuit with initial boost voltage

Publications (2)

Publication Number Publication Date
DE3752149D1 true DE3752149D1 (de) 1998-01-15
DE3752149T2 DE3752149T2 (de) 1998-06-10

Family

ID=25434680

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3752149T Expired - Fee Related DE3752149T2 (de) 1986-10-02 1987-07-31 Steuerungsschaltung für Steuerungsolenoid mit Überspannung beim Anfang
DE3751293T Expired - Fee Related DE3751293T2 (de) 1986-10-02 1987-07-31 Steuerungsschaltung für steuerungssolenoid mit überspannung beim anfang.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE3751293T Expired - Fee Related DE3751293T2 (de) 1986-10-02 1987-07-31 Steuerungsschaltung für steuerungssolenoid mit überspannung beim anfang.

Country Status (5)

Country Link
US (1) US4729056A (de)
EP (2) EP0343161B1 (de)
JP (1) JPH02500873A (de)
DE (2) DE3752149T2 (de)
WO (1) WO1988002544A1 (de)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616930B1 (fr) * 1987-06-22 1995-06-30 Renault Dispositif de commande de securite d'un actuateur du type electrovanne battante a solenoide
DE3741619A1 (de) * 1987-12-09 1989-06-22 Festo Kg Steuerschaltungsanordnung fuer magnetventile
US4984659A (en) * 1988-02-01 1991-01-15 Mitsubishi Denki Kabushiki Kaisha Elevator control apparatus
US5204802A (en) * 1988-11-23 1993-04-20 Datacard Corporation Method and apparatus for driving and controlling an improved solenoid impact printer
DE3843138A1 (de) * 1988-12-22 1990-06-28 Bosch Gmbh Robert Verfahren zur steuerung und erfassung der bewegung eines ankers eines elektromagnetischen schaltorgans
US5053911A (en) * 1989-06-02 1991-10-01 Motorola, Inc. Solenoid closure detection
DE3920064A1 (de) * 1989-06-20 1991-01-03 Bosch Gmbh Robert Schaltungsanordnung zum betrieb von elektromagnetischen verbrauchern
US5055961A (en) * 1989-11-06 1991-10-08 Caterpillar Industrial Inc. Flyback current dampening apparatus
US5255152A (en) * 1991-08-21 1993-10-19 Eaton Corporation Controller for fixed-time pull-in of a relay
US5237262A (en) * 1991-10-24 1993-08-17 International Business Machines Corporation Temperature compensated circuit for controlling load current
US5245261A (en) * 1991-10-24 1993-09-14 International Business Machines Corporation Temperature compensated overcurrent and undercurrent detector
US5543632A (en) * 1991-10-24 1996-08-06 International Business Machines Corporation Temperature monitoring pilot transistor
US5222011A (en) * 1991-11-04 1993-06-22 Motorola, Inc. Load driver circuit
GB2269950A (en) * 1992-08-22 1994-02-23 Rover Group Fuel injector controller with fault monitoring
GB2273836A (en) * 1992-12-24 1994-06-29 Rover Group Fuel injector control circuit with voltage boost
US5381297A (en) * 1993-06-18 1995-01-10 Siemens Automotive L.P. System and method for operating high speed solenoid actuated devices
US6359547B1 (en) * 1994-11-15 2002-03-19 William D. Denison Electronic access control device
DE19503536A1 (de) * 1995-02-03 1996-08-08 Bosch Gmbh Robert Schaltungsanordnung für ein Einrückrelais
DE19515775C2 (de) * 1995-04-28 1998-08-06 Ficht Gmbh Verfahren zum Ansteuern einer Erregerspule einer elektromagnetisch angetriebenen Hubkolbenpumpe
SE505747C2 (sv) * 1996-02-07 1997-10-06 Asea Brown Boveri Kontaktorutrustning
US5703748A (en) * 1996-05-10 1997-12-30 General Motors Corporation Solenoid driver circuit and method
US5740003A (en) * 1996-09-19 1998-04-14 General Electric Company Circuit breaker shunt trip accessory with mechanical override
US6236552B1 (en) * 1996-11-05 2001-05-22 Harness System Technologies Research, Ltd. Relay drive circuit
DE19732854B4 (de) * 1997-07-30 2006-04-20 Mitsubishi Denki K.K. Steuervorrichtung zum Steuern einer Kraftstoffeinspritzvorrichtung einer Brennkraftmaschine
US6031707A (en) * 1998-02-23 2000-02-29 Cummins Engine Company, Inc. Method and apparatus for control of current rise time during multiple fuel injection events
US5975057A (en) * 1998-04-02 1999-11-02 Motorola Inc. Fuel injector control circuit and system with boost and battery switching, and method therefor
DE19833830A1 (de) * 1998-07-28 2000-02-03 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung wenigstens eines Magnetventils
US6545852B1 (en) 1998-10-07 2003-04-08 Ormanco System and method for controlling an electromagnetic device
US6061224A (en) * 1998-11-12 2000-05-09 Burr-Brown Corporation PWM solenoid driver and method
FR2786914B1 (fr) * 1998-12-07 2001-01-12 Schneider Electric Ind Sa Dispositif de commande d'un electro-aimant, avec un circuit d'alimentation alimente par le courant de maintien de l'electro-aimant
DE69921106T2 (de) * 1999-01-25 2005-11-24 Mitsubishi Denki K.K. Steuerungsvorrichtung für aufzugsbremse
US6406102B1 (en) 1999-02-24 2002-06-18 Orscheln Management Co. Electrically operated parking brake control system
EP1109178A3 (de) * 1999-12-16 2002-04-17 Siemens Aktiengesellschaft Verfahren zum Schalten einer induktiven Last
US6257205B1 (en) * 1999-12-22 2001-07-10 Ford Global Technologies, Inc. System for controlling a fuel injector
US6213099B1 (en) * 1999-12-22 2001-04-10 Ford Global Technologies, Inc. System for controlling a fuel injector
DE19963154B4 (de) * 1999-12-24 2009-10-08 Conti Temic Microelectronic Gmbh Verfahren zur Vorgabe des Stroms durch ein induktives Bauteil
US6469885B1 (en) * 2000-02-16 2002-10-22 Impact Devices Incorporated Power saving circuit for solenoid driver
JP2003522919A (ja) * 2000-02-16 2003-07-29 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 電磁弁の駆動方法および電磁弁を駆動する回路装置
DE10014228A1 (de) * 2000-03-22 2001-09-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines Kraftstoffeinspritzventils
US6371077B1 (en) 2000-07-13 2002-04-16 Caterpillar Inc. Waveform transitioning method and apparatus for multi-shot fuel systems
US6453874B1 (en) 2000-07-13 2002-09-24 Caterpillar Inc. Apparatus and method for controlling fuel injection signals during engine acceleration and deceleration
US6450149B1 (en) 2000-07-13 2002-09-17 Caterpillar Inc. Method and apparatus for controlling overlap of two fuel shots in multi-shot fuel injection events
US6480781B1 (en) 2000-07-13 2002-11-12 Caterpillar Inc. Method and apparatus for trimming an internal combustion engine
US6390082B1 (en) 2000-07-13 2002-05-21 Caterpillar Inc. Method and apparatus for controlling the current level of a fuel injector signal during sudden acceleration
US6363315B1 (en) 2000-07-13 2002-03-26 Caterpillar Inc. Apparatus and method for protecting engine electronic circuitry from thermal damage
US6467452B1 (en) 2000-07-13 2002-10-22 Caterpillar Inc Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine
US6415762B1 (en) 2000-07-13 2002-07-09 Caterpillar Inc. Accurate deliver of total fuel when two injection events are closely coupled
US6705277B1 (en) 2000-07-13 2004-03-16 Caterpillar Inc Method and apparatus for delivering multiple fuel injections to the cylinder of an engine wherein the pilot fuel injection occurs during the intake stroke
US6363314B1 (en) 2000-07-13 2002-03-26 Caterpillar Inc. Method and apparatus for trimming a fuel injector
US6606974B1 (en) 2000-07-13 2003-08-19 Caterpillar Inc Partitioning of a governor fuel output into three separate fuel quantities in a stable manner
US6386176B1 (en) 2000-07-13 2002-05-14 Caterpillar Inc. Method and apparatus for determining a start angle for a fuel injection associated with a fuel injection signal
DE10034458A1 (de) * 2000-07-15 2002-01-24 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung wenigstens eines elektromagnetischen Verbrauchers
JP2002237410A (ja) * 2001-02-08 2002-08-23 Denso Corp 電磁弁駆動回路
US6516773B2 (en) 2001-05-03 2003-02-11 Caterpillar Inc Method and apparatus for adjusting the injection current duration of each fuel shot in a multiple fuel injection event to compensate for inherent injector delay
US6516783B2 (en) 2001-05-15 2003-02-11 Caterpillar Inc Camshaft apparatus and method for compensating for inherent injector delay in a multiple fuel injection event
JP4075374B2 (ja) * 2001-12-26 2008-04-16 富士電機機器制御株式会社 電磁石装置の駆動装置
FR2837412A1 (fr) * 2002-03-22 2003-09-26 Technifor Dispositif de marquage en creux par percussions successives
US7161787B2 (en) * 2004-05-04 2007-01-09 Millipore Corporation Low power solenoid driver circuit
US7508645B2 (en) * 2004-07-09 2009-03-24 Abb Technology Ag Method and apparatus for operating a magnetic actuator in a power switching device
ES2387540T3 (es) * 2004-08-31 2012-09-25 American Power Conversion Corporation Método y aparato para proporcionar alimentación ininterrumpida
DE102004063079A1 (de) * 2004-12-28 2006-07-06 Robert Bosch Gmbh Verfahren zum Betrieb einer Brennkraftmaschine
US20110254661A1 (en) 2005-12-23 2011-10-20 Invue Security Products Inc. Programmable security system and method for protecting merchandise
WO2007143481A2 (en) * 2006-06-01 2007-12-13 Continental Automotive Systems Us, Inc. Fuel injection circuit with selectable peak injection currents
US7684168B2 (en) * 2007-01-15 2010-03-23 Yazaki North America, Inc. Constant current relay driver with controlled sense resistor
JP4359855B2 (ja) * 2007-07-09 2009-11-11 Smc株式会社 電磁弁駆動回路及び電磁弁
DE102008007211B4 (de) * 2008-02-01 2017-10-26 Continental Automotive Gmbh Schaltungsanordnung zum Ansteuern einer induktiven Last und Verwendung einer solchen Schaltungsanordnung
US20110149458A1 (en) * 2009-12-17 2011-06-23 Caterpillar Inc. Systems and methods for detecting solenoid armature movement
US8214132B2 (en) * 2010-09-17 2012-07-03 Caterpillar Inc. Efficient wave form to control fuel system
GB2487218A (en) * 2011-01-13 2012-07-18 Gm Global Tech Operations Inc Method for driving a solenoid valve of a fuel injector
DE102011001610B4 (de) 2011-03-28 2018-07-05 Faculty of Electrical Engineering University of Ljubljana Verfahren zur Steuerung von Magnetspulen (Solenoiden)
CN102979948B (zh) * 2012-11-30 2014-05-21 中国第一汽车股份有限公司无锡油泵油嘴研究所 柴油机电控系统电磁阀关闭时刻检测电路
CN105027249B (zh) 2013-01-10 2018-06-26 施耐德电气It公司 用于控制继电器的系统和方法
US10256065B2 (en) * 2013-01-10 2019-04-09 Schneider Electric It Corporation Systems and methods for controlling relays
US9726726B2 (en) 2014-11-06 2017-08-08 Rockwell Automation Technologies, Inc. Single-pole, single current path switching system and method
US9748873B2 (en) 2014-11-06 2017-08-29 Rockwell Automation Technologies, Inc. 5-pole based wye-delta motor starting system and method
US10361051B2 (en) 2014-11-06 2019-07-23 Rockwell Automation Technologies, Inc. Single pole, single current path switching system and method
US10141143B2 (en) 2014-11-06 2018-11-27 Rockwell Automation Technologies, Inc. Wear-balanced electromagnetic motor control switching
US9806642B2 (en) 2014-11-06 2017-10-31 Rockwell Automation Technologies, Inc. Modular multiple single-pole electromagnetic switching system and method
US9722513B2 (en) 2014-11-06 2017-08-01 Rockwell Automation Technologies, Inc. Torque-based stepwise motor starting
US10074497B2 (en) * 2014-11-06 2018-09-11 Rockwell Automation Technologies, Inc. Operator coil parameter based electromagnetic switching
US9806641B2 (en) 2014-11-06 2017-10-31 Rockwell Automation Technologies, Inc. Detection of electric motor short circuits
JP6544937B2 (ja) * 2015-02-13 2019-07-17 株式会社ケーヒン ソレノイド駆動装置
EP3181295A1 (de) * 2015-12-18 2017-06-21 HILTI Aktiengesellschaft Brenngasbetriebenes eintreibgerät
EP4112182B1 (de) * 2017-08-03 2024-03-27 Capstan AG Systems, Inc. System und verfahren zum betrieb eines magnetventils
US10953423B2 (en) 2018-04-23 2021-03-23 Capstan Ag Systems, Inc. Fluid dispensing apparatus including phased valves and methods of dispensing fluid using same
US11506228B2 (en) 2018-09-25 2022-11-22 Capstan Ag Systems, Inc. System and method for energizing a solenoid coil for fast solenoid actuation
AU2021283944A1 (en) 2020-06-03 2022-12-01 Capstan Ag Systems, Inc. System and methods for operating a solenoid valve
JP7501220B2 (ja) * 2020-08-19 2024-06-18 株式会社アイシン 電流検出装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417201A (en) * 1971-04-01 1983-11-22 The Bendix Corporation Control means for controlling the energy provided to the injector valves of an electrically controlled fuel system
US4112477A (en) * 1977-06-06 1978-09-05 General Motors Corporation Circuit for energizing a fuel injector valve coil
US4173030A (en) * 1978-05-17 1979-10-30 General Motors Corporation Fuel injector driver circuit
DE2828678A1 (de) * 1978-06-30 1980-04-17 Bosch Gmbh Robert Verfahren und einrichtung zum betrieb eines elektromagnetischen verbrauchers, insbesondere eines einspritzventils in brennkraftmaschinen
DE2841781A1 (de) * 1978-09-26 1980-04-10 Bosch Gmbh Robert Einrichtung zum betrieb von elektromagnetischen verbrauchern bei brennkraftmaschinen
DE3066606D1 (en) * 1979-09-22 1984-03-22 Lucas Ind Plc Circuits for electromagnet energisation control
US4338651A (en) * 1980-10-01 1982-07-06 The Bendix Corporation Dual coil driver
US4486703A (en) * 1982-09-27 1984-12-04 The Bendix Corporation Boost voltage generator
US4479161A (en) * 1982-09-27 1984-10-23 The Bendix Corporation Switching type driver circuit for fuel injector
GB8402470D0 (en) * 1984-01-31 1984-03-07 Lucas Ind Plc Drive circuits

Also Published As

Publication number Publication date
EP0343161A1 (de) 1989-11-29
DE3751293D1 (de) 1995-06-14
JPH02500873A (ja) 1990-03-22
DE3751293T2 (de) 1996-01-04
JPH0477448B2 (de) 1992-12-08
EP0651413B1 (de) 1997-12-03
US4729056A (en) 1988-03-01
EP0343161A4 (de) 1990-07-04
EP0343161B1 (de) 1995-05-10
DE3752149T2 (de) 1998-06-10
EP0651413A1 (de) 1995-05-03
WO1988002544A1 (en) 1988-04-07

Similar Documents

Publication Publication Date Title
DE3752149D1 (de) Steuerungsschaltung für Steuerungsolenoid mit Überspannung beim Anfang
GB8418487D0 (en) Control assembly
FI861699A0 (fi) Styrventil.
GB8520010D0 (en) Control circuit
GB8507471D0 (en) Control device
GB8502289D0 (en) Control circuit
GB8513547D0 (en) Control circuit
GB8530169D0 (en) Control circuits
GB8504050D0 (en) Control device
GB8504515D0 (en) Control circuit
GB2160069B (en) Control circuit
DE3483393D1 (de) Steuervorrichtung.
KR860700169A (ko) 제어용 집적회로
DE68903422D1 (de) Schaltung zur regelung der rastergroesse.
GB8430521D0 (en) Vernier control device
DE3580168D1 (de) Beleuchtungssteuerausstattung.
GB8323340D0 (en) Lighting control
EP0155663A3 (en) Engine control device
GB8408852D0 (en) Control valves
GB8420552D0 (en) Vernier control device
DE3583405D1 (de) Programmierbare steuereinheit.
MX162215A (es) Valvula de control
GB8520973D0 (en) Control circuit
GB8423328D0 (en) Pilot injection device
GB2147390B (en) Control mechanisms

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee