EP0006843B2 - Valve électromagnétique avec commande électronique - Google Patents

Valve électromagnétique avec commande électronique Download PDF

Info

Publication number
EP0006843B2
EP0006843B2 EP78100313A EP78100313A EP0006843B2 EP 0006843 B2 EP0006843 B2 EP 0006843B2 EP 78100313 A EP78100313 A EP 78100313A EP 78100313 A EP78100313 A EP 78100313A EP 0006843 B2 EP0006843 B2 EP 0006843B2
Authority
EP
European Patent Office
Prior art keywords
voltage
magnetic valve
resistor
current
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
EP78100313A
Other languages
German (de)
English (en)
Other versions
EP0006843A1 (fr
EP0006843B1 (fr
Inventor
Heinrich Dipl. Ing. Dettmann
Wolfgang Pfeiffer
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.)
Buerkert GmbH
Burkert GmbH
Original Assignee
Buerkert GmbH
Burkert GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8185903&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0006843(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Buerkert GmbH, Burkert GmbH filed Critical Buerkert GmbH
Priority to EP78100313A priority Critical patent/EP0006843B2/fr
Priority to DE7878100313T priority patent/DE2862229D1/de
Priority to IT24137/79A priority patent/IT1162555B/it
Priority to US06/055,930 priority patent/US4291358A/en
Publication of EP0006843A1 publication Critical patent/EP0006843A1/fr
Application granted granted Critical
Publication of EP0006843B1 publication Critical patent/EP0006843B1/fr
Publication of EP0006843B2 publication Critical patent/EP0006843B2/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1838—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by switching-in or -out impedance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit 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
    • H01H47/223—Circuit 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 adapted to be supplied by AC

Definitions

  • the invention relates to a solenoid valve with an electronic control circuit, which generates a control signal by means of which an increased excitation current from a power supply source of the excitation coil in the starting phase via a closed transistor switch and in the holding phase via a series resistor which is connected in parallel with the transistor switch then opened, a holding current which is lower than the excitation current is supplied, and with a timer and a resistor containing a capacitor upstream of the control electrode of the transistor switch.
  • Solenoid valves of this type with electronic control are known from US Pat. No. 3,852,646. With these solenoid valves, an increased current is briefly passed through the excitation coil to increase the pulling force. To overcome the inertia of the moving parts of the solenoid valve and the spring force of the normally provided return spring, a much higher energy is required than to keep the valve in its switched-on state. The current requirement for fast and safe tightening of the solenoid valve is further increased by the fact that the induction of the excitation coil is substantially less in the rest position of the armature than in its working position.
  • the holding current can be selected to be substantially lower, so that the heating of the solenoid valve can be kept below the permissible maximum limit, which is often around 80 ° C., even with a long duty cycle.
  • Another advantage of this measure is that the switching behavior of the solenoid valves is improved as a result of the increase in the tightening force. In particular, shorter switching times can be achieved.
  • the series resistor is bridged by a transistor switch during the pull-in phase.
  • the transistor switch is driven by a time-delaying resistor-capacitor element, which supplies a drive signal to the control electrode of the transistor switch for the duration of its time constant, so that it switches through during the period determined by the time element and bridges the series resistor.
  • the timing element itself is supplied with a negative control signal via a switching transistor or with a positive control signal via a further switching transistor.
  • solenoid valves with electronic control for increasing the pulling power are known, in which a controllable rectifier is connected in series with the excitation coil.
  • the ignition timing of the controllable rectifier is changed by a phase control so that the ignition occurs earlier during the pull-in phase and later during the hold phase.
  • This solution which is known for example from DE-OS 25 11 564 or DE-OS 20 23 108, has the defect that an AC voltage or pulsating DC voltage or an additional clock generator is required as the operating voltage.
  • a delay circuit for driving a relay which has a timing element, which consists of a series connection of resistor and capacitor, which is between two Operating voltage lines is connected, which carry a stabilized voltage, which is obtained by a series resistor in the one operating voltage line and a Zener diode arrangement connected in parallel.
  • This known circuit arrangement is intended to delay the switching on of a relay.
  • the object of the invention is to provide a solenoid valve with an electronic control circuit for a brief increase in the starting power, which apart from the operating voltage does not require a separate control signal.
  • a solenoid valve with electronic control circuit of the type described in the introduction which is characterized according to the invention in that a voltage limiter element containing a voltage divider is connected to the lines supplying the operating voltage of the excitation coil, the voltage supply of which is connected to the tap when the control circuit is applied said control signal is removed that between the timing element and the control electrode of the transistor switch, a current amplification element designed as a Darlington transistor is connected, the base of which is connected to the connection point between the capacitor and resistor, the collector of which is connected to a control terminal of the switch and the emitter of which is connected directly to the circuit zero .
  • control voltage acting on the timing element is obtained from the operating voltage itself, a separate control signal and thus also a separate control line can be dispensed with.
  • a full-wave rectifier is connected upstream of the electronic control.
  • the solenoid valve can be operated not only with alternating current or with direct current, but also with any polarity of the direct voltage.
  • a smoothing device in the form of a smoothing capacitor can be assigned to the voltage limiter element.
  • the series resistor is designed as a resistance wire, which forms part of the excitation winding.
  • the series resistor thus contributes to the number of ampere turns of the excitation coil.
  • the size of the actual excitation coil can be reduced or the holding current and the holding power can be reduced if the size remains the same.
  • the measure results in less heating of the solenoid valve during the holding phase.
  • the electronic control of the solenoid valve shown in Figure 1 consists essentially of a full-wave rectifier G1, a voltage limiter circuit with a resistor R1 and a Zener diode D1, a timing element from a resistor R2 and a capacitor C2, a current amplification element T1, which acts as a Darlington transistor is formed, an electronic switch, which is formed from two transistors T2, T3 in a Darlington circuit, and a series resistor RV.
  • the operating voltage is supplied via the AC connections of the full-wave rectifier via lines 1 and 2.
  • the positive connection of the full-wave rectifier G1 is connected via a line 3 to a connection of the excitation coil AE, while the other connection of the excitation coil is connected to the interconnected collectors of the transistors T2, T3.
  • the emitter of the transistor T2 is connected via a line 4 to the negative terminal of the full-wave rectifier G1.
  • the collector-emitter path of the transistor T2 is bridged by a series resistor RV.
  • the excitation coil AE is therefore in series with the transistor T2 and the series resistor R4 connected in parallel with it.
  • the base of the transistor T3 is connected to the positive line 3 via a resistor R4. Furthermore, the base of the transistor T3 is connected to the common collector of the Darlington transistor T1, the. Emitter is connected to the negative line 4.
  • the base of the Darlington transistor T1 is connected via a resistor R3 to the connection point between the resistor R2 and the capacitor C2.
  • the electronic control for the solenoid valve operates as follows: To actuate the solenoid valve, an operating voltage is applied to lines 1, 2, which can be AC voltage or DC voltage with any polarity. This voltage reaches the full-wave rectifier G1 and the lines 3, 4 to the series connection of the excitation coil AE and the transistor T2 with the series resistor RV connected in parallel.
  • the base of transistor T3 receives a positive voltage via resistor R4, transistor T3 becomes conductive and also drives transistor T2 into its conductive state. Only a small voltage of a few tenths of a volt drops across the collector-emitter path of the transistor T2, so that the excitation coil AE is practically subjected to the full operating voltage.
  • the charging of the capacitor C2 begins via the resistor R2 to a voltage which is determined by the zener diode D1.
  • This voltage is smoothed by a capacitor C1 which is connected in parallel to the zener diode D1.
  • the voltage of the capacitor C2 passes through the resistor R3 to the base of the Darlington transistor T1.
  • this voltage reaches a certain value, namely the base-emitter voltage of the Darlington transistor T1
  • the Darlington transistor T1 is turned on and the voltage at the base of transistor C3 drops so much that transistor T3 is turned off, thereby also controlling transistor T2 to its non-conductive state.
  • the series resistor RV is fully effective for limiting the current flowing in the excitation winding AE.
  • a capacitor C3 which bridges the collector-base path. Furthermore, a series circuit comprising a freewheeling diode D2 and a zener diode D3 is provided in parallel with the excitation winding, the diodes having opposite polarity. These diodes are used to reduce the switch-off voltage peaks.
  • the diode D2 blocks the current flow during the switch-off process at a reverse voltage of approximately 0.8 volts, which results in a slowdown in the switch-off process of the magnet system.
  • Zener diode D3 raises this relatively low reverse voltage from 0.8 to, for example, 30 volts, which reduces the delay in decay of the magnet system.
  • the Zener diode D3 can also be omitted, but it is particularly useful when operating at relatively high supply voltages.
  • the control current to be applied by the timing element is reduced to a very low value.
  • the resistor R2 can therefore be selected to be relatively large, while the capacitor C2 can be selected to be relatively small. This enables a space-saving design which enables the electronic control circuit to be installed in a cavity of the solenoid valve.
  • the capacitor C2 can also be designed for low voltages and can thereby be further reduced. Because of the voltage limitation, a relatively inexpensive version can also be chosen for the Darlington transistor T1, since a low reverse voltage is sufficient.
  • the ratio of the pull-in current to the holding current or pull-in power to the holding power can be determined.
  • the solenoid valve shown in FIG. 2 contains a valve body 5 and an electromagnet 6 for actuating the valve via a plunger armature 7, which is connected via a rod 8 to the valve plate 9 of the solenoid valve.
  • the electromagnet 6 contains a cylindrical excitation coil 10, in which the armature 7 can dip. The armature 7 is pressed into its rest position by a return spring 11.
  • the winding of the excitation coil consists of two parts, a first part 10a and a second part 10b.
  • the first part 10a is the actual action, which consists for example of enamelled copper wire.
  • the second part 10b is formed by the series resistor RV, which is designed for this purpose as a resistance wire.
  • the series resistor RV thus contributes to the number of ampere turns. Therefore, the holding current can be reduced for a given volume of the electromagnet. This is particularly advantageous if the solenoid valve is operated with direct current. To drop the armature, a remanence force must be overcome, which is caused by the return spring 11.
  • the return spring must be chosen stronger in DC systems than in AC systems, so that an increased holding power is required. For this reason, winding the series resistor as a resistance wire has a particularly positive effect on the excitation winding in direct current solenoid valves.
  • the electronic control of the direct current valve according to the invention can be built up in an extremely space-saving manner. It can be accommodated, for example, in a cavity 12 of the solenoid valve and cast with potting compound, for example epoxy resin.
  • the inventive design of the overexcitation of the magnetic coil can be used not only with seat valves of the type shown in FIG. 2, but also with other, in particular also with hinged armature valves, with advantage.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (6)

1. Soupape magnétique comportant un circuit de commande électronique engendrant un signal de commande par lequel à partir d'une alimentation en tension, la bobine d'excitation reçoit dans la phase d'attraction, un courant d'excitation intensifié par l'intermédiaire d'un commutateur transistorisé (T2, T3) fermé et, dans la phase de maintien, par l'intermédiaire d'une résistance série (RV) montée en parallèle avec le commutateur transistorisé (T2, T3) qui est alors ouvert, un courant de maintien diminué par rapport au courant d'excitation, et comportant une cellule de temporisation comprenant une résistance (R2) et un condensateur (C2), et montée en amont de l'électrode de commande du commutateur transistorisé, caractérisée en ce que sur les lignes (3,4) fournissant la tension d'alimentation à la bobine d'excitation, est monté un diviseur de tension (R1, D1) comprenant un élément limiteur de tension (D1) et dont la prise fournit ledit signal de commande lorsque l'alimentation en tension est connectée au circuit de commande, en ce qu'entre la cellule de temporisation (R2, C2) et l'électrode de commande du commutateur transistorisé (T2, T3), est monté un élément amplificateur de courant (T1) réalisé sous la forme d'un transistor Darlington dont la base est reliée à la jonction entre le condensateur (C2) et la résistance (R2), dont le collecteur est relié à une borne de commande du commutateur (T2, T3), et dont l'émetteur est relié directement à la masse du circuit.
2. Soupape magnétique suivant la revendication 1, caractérisée en ce que le circuit de commande électronique est précédé d'un redresseur à double voie (G1) dont les bornes à tension alternative sont reliées à la source d'alimentation en tension et dont les bornes à tension continue sont reliées aux lignes (3, 4) fournissant la tension d'alimentation.
3. Soupape magnétique selon la revendication 1, caractérisée en ce que des moyens de filtrage (Cl) sont associés à l'élément limiteur de tension (D1) pour lisser la tension ainsi limitée.
4. Soupape magnétique selon l'une quelconque des revendications précédentes, caractérisée en ce que la résistance série (RV) est formée en tant que fil résistif constituant une partie de la bobine d'excitation (AE).
5. Soupape magnétique selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un circuit constitué d'une diode de roue libre (D2) en série avec une diode Zener (D3) de polarité opposée est monté en parallèle avec la bobine d'excitation (AE).
6. Soupape magnétique selon l'une quelconque des revendications précédentes, caractérisée en ce que le commutateur est formé de deux transistors (T1, T3) interconnectés en montage Darlington.
EP78100313A 1978-07-06 1978-07-06 Valve électromagnétique avec commande électronique Expired EP0006843B2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP78100313A EP0006843B2 (fr) 1978-07-06 1978-07-06 Valve électromagnétique avec commande électronique
DE7878100313T DE2862229D1 (en) 1978-07-06 1978-07-06 Electronically controlled magnetic valve
IT24137/79A IT1162555B (it) 1978-07-06 1979-07-05 Valvola elettromagnetica con comando elettronico
US06/055,930 US4291358A (en) 1978-07-06 1979-07-06 Magnetic valve with electronic control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP78100313A EP0006843B2 (fr) 1978-07-06 1978-07-06 Valve électromagnétique avec commande électronique

Publications (3)

Publication Number Publication Date
EP0006843A1 EP0006843A1 (fr) 1980-01-23
EP0006843B1 EP0006843B1 (fr) 1983-04-13
EP0006843B2 true EP0006843B2 (fr) 1987-09-23

Family

ID=8185903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100313A Expired EP0006843B2 (fr) 1978-07-06 1978-07-06 Valve électromagnétique avec commande électronique

Country Status (4)

Country Link
US (1) US4291358A (fr)
EP (1) EP0006843B2 (fr)
DE (1) DE2862229D1 (fr)
IT (1) IT1162555B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206419A1 (de) 2012-04-19 2013-10-24 Magna Powertrain Ag & Co. Kg Steuerung für ein Druckregelventil

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614101Y2 (fr) * 1980-03-31 1986-02-07
US4409638A (en) * 1981-10-14 1983-10-11 Sturman Oded E Integrated latching actuators
JPS5954873A (ja) * 1982-09-21 1984-03-29 Aisin Seiki Co Ltd 電動式流量比例制御弁
IT1196706B (it) * 1984-05-31 1988-11-25 Ghisalba Spa Circuito di alimentazione perfezionato per contattore elettromagnetico
IT1218854B (it) * 1984-11-07 1990-04-24 Ates Componenti Elettron Circuito di comando, integrato monoliticamente, per la commutazione di transistori
JPS61140114A (ja) * 1984-12-12 1986-06-27 Koushinraido Hakuyo Suishin Plant Gijutsu Kenkyu Kumiai 電磁石駆動装置
DE4010232A1 (de) * 1990-03-30 1991-10-02 Bosch Gmbh Robert Einrichtung zum erkennen des schaltzustands eines stellglieds
DE4110411A1 (de) * 1990-04-05 1992-01-02 Merit Werk Merten & Co Kg Klappankerrelais, insbesondere fuer kraftfahrzeuge
US5281939A (en) * 1993-05-28 1994-01-25 Eaton Corporation Multiple pole solenoid using simultaneously energized AC and DC coils
DE29503146U1 (de) * 1995-02-24 1995-04-13 Siemens Ag Schaltungsanordnung zur Ansteuerung eines Schützes
US5734543A (en) * 1996-03-27 1998-03-31 Clemson University Method and apparatus to improve the performance of AC solenoid devices during lapses in power quality
US5784244A (en) * 1996-09-13 1998-07-21 Cooper Industries, Inc. Current limiting circuit
TW506498U (en) * 1996-12-01 2002-10-11 Tadahiro Ohmi Fluid control valve and fluid supply/exhaust system
US5740005A (en) * 1997-04-29 1998-04-14 Chen; Chun-Chun Solenoid valve booster
US6174136B1 (en) 1998-10-13 2001-01-16 Liquid Metronics Incorporated Pump control and method of operating same
US6280147B1 (en) 1998-10-13 2001-08-28 Liquid Metronics Incorporated Apparatus for adjusting the stroke length of a pump element
US6264432B1 (en) 1999-09-01 2001-07-24 Liquid Metronics Incorporated Method and apparatus for controlling a pump
DE10212092A1 (de) 2002-03-19 2003-10-09 Dbt Autom Gmbh Verfahren und Vorrichtung zum Betrieb eines Elektromagneten an einem eigensicheren Gleichstromkreis
DE202004004156U1 (de) * 2004-03-17 2005-08-04 Erben Kammerer Kg Schnell auslösendes Ventil
FR2887958B1 (fr) * 2005-07-01 2007-10-12 Prospection Et D Inv S Techniq Dispositif de reglage de commande de vanne pour appareil de fixation a gaz et l'appareil comportant le dispositif
FR2978862B1 (fr) 2011-08-01 2013-09-27 Legrand France Appareil electrique comportant deux bornes de commande pour mettre un organe mobile selectivement en position de repos et en position de travail
DE102012005595B4 (de) * 2012-03-20 2024-03-21 Festo Se & Co. Kg Magnetventil
DE102014210810B4 (de) * 2014-06-05 2021-12-02 Robert Bosch Gmbh Ansteuervorrichtung eines elektromagnetischen Aktuators für ein Rückhaltemittel
CN107830229A (zh) * 2017-12-08 2018-03-23 武汉浩宏科技有限公司 电磁阀分压电路及系统、冲击波治疗机
EP4068602A1 (fr) * 2021-03-30 2022-10-05 Siemens Aktiengesellschaft Dispositif condensateur, module d'onduleur pourvu de dispositif condensateur, système d'onduleur pourvu de module d'onduleur et procédé de remplacement pour le système d'onduleur

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525021A (en) * 1968-10-07 1970-08-18 Joy Mfg Co Precipitator rapper control
US3582715A (en) * 1969-01-21 1971-06-01 Plessey Airborne Corp Multiple-mode solid-state time delay apparatus including charge-monitoring timing circuits
GB1268800A (en) * 1969-12-16 1972-03-29 English Electric Co Ltd Relay power supply
US3852646A (en) * 1970-12-28 1974-12-03 Design Elements Inc Solenoid drive circuit
US3666998A (en) * 1971-02-04 1972-05-30 Allen Bradley Co Relay input circuit
CH523583A (fr) * 1971-04-23 1972-05-31 Lucifer Sa Dispositif de commande d'un électro-aimant
US3705333A (en) * 1972-02-09 1972-12-05 Ibm Adjustable active clamp circuit for high speed solenoid operation
CH553351A (fr) * 1972-04-21 1974-08-30 Segaric Sa Dispositif d'alimentation d'un frein ou d'un embrayage a commande electromagnetique.
FR2192367B1 (fr) * 1972-07-11 1976-06-11 Deude Rene
FR2242758B1 (fr) * 1973-09-05 1976-06-18 Peugeot & Renault
DE2423258C3 (de) * 1974-05-14 1978-09-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Stromversorgung eines induktiven Verbrauchers
CH607260A5 (fr) * 1975-09-05 1978-11-30 Lucifer Sa
US4065096A (en) * 1976-07-01 1977-12-27 Graham-White Sales Corporation Solenoid-actuated valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206419A1 (de) 2012-04-19 2013-10-24 Magna Powertrain Ag & Co. Kg Steuerung für ein Druckregelventil
DE102012206419B4 (de) 2012-04-19 2021-08-12 Magna Pt B.V. & Co. Kg Steuerung für ein Druckregelventil

Also Published As

Publication number Publication date
IT7924137A0 (it) 1979-07-05
EP0006843A1 (fr) 1980-01-23
DE2862229D1 (en) 1983-05-19
US4291358A (en) 1981-09-22
IT1162555B (it) 1987-04-01
EP0006843B1 (fr) 1983-04-13

Similar Documents

Publication Publication Date Title
EP0006843B2 (fr) Valve électromagnétique avec commande électronique
DE3503289C2 (de) Treiberschaltung
DE2828678C2 (fr)
DE102006014276B4 (de) Elektromagnetventil und Elektromagnetventil-Antriebsschaltung
EP0705482B1 (fr) Circuits de commande pour un contacteur-disjoncteur
EP1527470B1 (fr) Ensemble de commande pour entrainement electromagnetique
EP0136968A2 (fr) Dispositif de commande pour l'alimentation d'un électro-aimant par un courant d'appel suivi d'un courant de maintien
EP0901057A2 (fr) Circuit de régulation de courant
DE2546424C2 (fr)
EP0807312B1 (fr) Circuit pour relais d'engrenement
DE3910810A1 (de) Schaltungsanordnung fuer ein elektromagnetisches ventil
DE4109922C2 (de) Einrichtung zum Ansteuern eines batteriebetriebenen elektromagnetischen Geräts
DE19533131C2 (de) Verfahren und Vorrichtung zum Ansteuern eines elektromagnetischen Verbrauchers
DE4332995C1 (de) Verfahren zur Ansteuerung von parallel angeordneten Relais
DE3623908A1 (de) Steuerschaltung fuer die magnetspule eines elektromagneten
DE1539223C3 (de) Funkenzündschaltung für Fahrzeug-Brennkraftmaschinen
DE2408254C3 (de) Überlastschutzeinrichtung für eine elektrische Last
DE2922521C2 (de) Schaltungsanordnung zur Ansteuerung von Magneten in Aufzeichnungsgeräten der Fernschreibtechnik
DE3231083A1 (de) Schaltung zur automatischen verringerung der einer last zugefuehrten leistung
DE3734415A1 (de) Schaltungsanordnung zur beschleunigung der versorgung eines elektromagnetischen verbrauchers
DE3112621A1 (de) "schaltungsanordnung zur ansteuerung von elektromagneten"
EP0057896B2 (fr) Circuit pour la commande d'un marteau actionné par voie électromagnétique
DE2016198A1 (de) Schaltungsanordnung zur Steuerung von elektrischen Schrittmotoren bzw Schritt magnetanordnungen
EP0384926A1 (fr) Circuit pour l'excitation et la désexcitation d'un relais bistable
DE102004058159B4 (de) Schaltungsanordnung zur Betätigung eines Ventils

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB SE

17P Request for examination filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR GB SE

REF Corresponds to:

Ref document number: 2862229

Country of ref document: DE

Date of ref document: 19830519

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HONEYWELL LUCIFER S.A.

Effective date: 19840109

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19870923

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): CH DE FR GB SE

ET3 Fr: translation filed ** decision concerning opposition
EAL Se: european patent in force in sweden

Ref document number: 78100313.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970613

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970627

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970707

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970711

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970730

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19980705

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19980705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980707

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 19980705

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 78100313.2