EP0387729B1 - Elektronische Schützansteuerung - Google Patents

Elektronische Schützansteuerung Download PDF

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Publication number
EP0387729B1
EP0387729B1 EP90104583A EP90104583A EP0387729B1 EP 0387729 B1 EP0387729 B1 EP 0387729B1 EP 90104583 A EP90104583 A EP 90104583A EP 90104583 A EP90104583 A EP 90104583A EP 0387729 B1 EP0387729 B1 EP 0387729B1
Authority
EP
European Patent Office
Prior art keywords
current
voltage
switch
supply voltage
contactor
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
EP90104583A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0387729A3 (en
EP0387729A2 (de
Inventor
Herbert Dr. Meyer
Thomas Balow
Zoltan Giday
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0387729A2 publication Critical patent/EP0387729A2/de
Publication of EP0387729A3 publication Critical patent/EP0387729A3/de
Application granted granted Critical
Publication of EP0387729B1 publication Critical patent/EP0387729B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Definitions

  • the invention relates to an electronic contactor control according to the preamble of claim 1 (see, for example, "EDN ELECTRICAL DESIGN NEWS", vol. 31, n ° 13, June 26, 1986, "Sense-cell MOSFET eliminates losses in source circuit", p.176, Fig. 8).
  • the z. B. are used as tapping magnets in type wheel printers, lifting magnets or in solenoid valves, the use of special ICs is known.
  • a special IC is e.g. B. the controller block L5832 from SGS, which is described in the "Databuch" of this company from December 1986.
  • the module enables clocked current control of the inrush current of actuators, its driver output being used for the basic control of a Darlington transistor, which is used as an actuator in the current control circuit.
  • the actual value of the inrush current is recorded via a low-resistance measuring resistor, the measuring input being limited to a voltage signal of 450 mV.
  • the block switches the operating current to the holding current, which is not regulated in contrast to the inrush current.
  • the inrush current timer of the block is only started when the operating current has exceeded the specified inrush current value.
  • the invention has for its object to provide a control with high current and voltage capacity and to ensure low-loss and accurate current measurement for the actual value detection of the control loop and a defined, reliable switching.
  • the regulation of the switch-on and the holding current advantageously improves the efficiency of the contactor control. Furthermore, the timer is started regardless of the level of the inrush current, which increases the safety of the contactor control.
  • the conventional controller module L 5832 namely starts the inrush current timer only after the inrush current has reached its predetermined value. If the specified inrush current were not reached, the module would not switch to holding current and the semiconductor components would be thermally destroyed by the high continuous current.
  • Another advantage lies in the use of a threshold switch controlled by the input voltage in the input of the contactor control, with which a flutter of the Contactor due to undefined switching on and off is avoided.
  • the circuit diagram shows an electronic contactor control with a power FET for two current setpoints with changeover switch, time control and threshold switch.
  • the contactor control is supplied with a supply voltage at input terminal 1.
  • the current through the contactor coil 2 is clocked with the integrated power semiconductor circuit 3 for the purpose of current regulation. So that the contactor does not drop out in the switching-off phases of the clocking, a freewheeling circuit with a diode 13, which is known for the operation of direct current contactors, is provided.
  • the current control requires a measurement of the current flowing through the contactor coil.
  • the measurement output 6 of the integrated power semiconductor circuit 3 is used for this purpose.
  • a HEXSense module from International Rectifier is used as circuit 3. Around 1600 MOSFETs are connected in parallel in this module. The current is divided evenly between the individual MOSFETs. The source connection of a MOSFET is led to the outside with an extra connection, the measuring output 6.
  • the exact ratio of the number of MOSFETs to the measuring MOSFET is specified by the manufacturer with a scale factor assigned to the respective module.
  • the current of the measuring output 6 is converted with an operational amplifier 8 into a voltage which is applied to the negative input of a comparator 10.
  • the output signal of a reference voltage transmitter 14 is connected to the positive input of this comparator 10. If the actual value voltage for the contactor current is greater than the reference voltage, the output of the comparator flips up from a positive voltage value OV and thus starts the switch-off timer 12, which controls the switch-off phases of the current clocking.
  • the reference voltage generator 14 To control both the inrush and the holding current of a contactor, two different reference voltages are provided by the reference voltage generator 14: a reference voltage which is higher in the voltage value for the brief inrush current and a lower reference voltage in the voltage value for the holding current of the contactor.
  • the reference values are switched using an electronic switch 15, which is controlled by an electronic timer 16 and which successively switches the reference voltages to the comparator 10.
  • the timer 16 starts immediately when the supply voltage is present with the inrush phase.
  • the presence of the supply voltage is checked with an electronic threshold switch 17, which is arranged in the input of the contactor control. If the supply voltage has not exceeded a defined switch-on threshold, then the start of the timer 16 is prevented.
  • the threshold switch 17 also controls the switching off of the contactor control. If the supply voltage drops below a specified switch-off threshold, then there is no reference voltage at the comparator 10 and the semiconductor circuit 3 is blocked. With the threshold switch 17, a defined switching on and off of the contactor is achieved and the fluttering of the contactor is avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Relay Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Dc-Dc Converters (AREA)
EP90104583A 1989-03-14 1990-03-10 Elektronische Schützansteuerung Expired - Lifetime EP0387729B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908192A DE3908192A1 (de) 1989-03-14 1989-03-14 Elektronische schuetzansteuerung
DE3908192 1989-03-14

Publications (3)

Publication Number Publication Date
EP0387729A2 EP0387729A2 (de) 1990-09-19
EP0387729A3 EP0387729A3 (en) 1990-11-22
EP0387729B1 true EP0387729B1 (de) 1995-05-03

Family

ID=6376264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104583A Expired - Lifetime EP0387729B1 (de) 1989-03-14 1990-03-10 Elektronische Schützansteuerung

Country Status (6)

Country Link
US (1) US5113307A (enExample)
EP (1) EP0387729B1 (enExample)
JP (1) JP3057571B2 (enExample)
DE (2) DE3908192A1 (enExample)
DK (1) DK0387729T3 (enExample)
ES (1) ES2073467T3 (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026427C1 (enExample) * 1990-08-21 1992-02-13 Siemens Ag, 8000 Muenchen, De
JPH06169269A (ja) * 1992-11-30 1994-06-14 Fujitsu Ltd 給電切換リレー回路
DE9406446U1 (de) * 1993-06-25 1994-11-03 Siemens Ag Ansteuerbaustein zur Ansteuerung eines Schützes
US5914849A (en) * 1994-04-26 1999-06-22 Kilovac Corporation DC actuator control circuit with voltage compensation, current control and fast dropout period
JP2854538B2 (ja) * 1995-05-19 1999-02-03 アイシン・エィ・ダブリュ株式会社 リニアソレノイド弁の制御装置
DE19524003A1 (de) * 1995-06-30 1997-01-09 Siemens Ag Elektronische Schaltungsanordnung zur Relaisansteuerung
SE505747C2 (sv) * 1996-02-07 1997-10-06 Asea Brown Boveri Kontaktorutrustning
EP0793343B1 (en) * 1996-02-29 2001-07-18 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Current limitation programmable circuit for smart power actuators
US5784244A (en) * 1996-09-13 1998-07-21 Cooper Industries, Inc. Current limiting circuit
DE10358858A1 (de) * 2003-12-16 2005-07-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer induktiven Last mit unterschiedlichen elektrischen Spannungen
DE102010042050A1 (de) 2010-10-06 2012-04-12 Robert Bosch Gmbh Verfahren zum Betreiben einer elektrischen Maschine
WO2015177919A1 (ja) * 2014-05-23 2015-11-26 三菱電機株式会社 電磁石駆動装置
EP3309811B1 (de) 2016-10-11 2018-12-19 Siemens Aktiengesellschaft Schütz mit einer elektronischen spulenansteuerung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327394A (en) * 1978-02-27 1982-04-27 The Bendix Corporation Inductive load drive circuit utilizing a bi-level output comparator and a flip-flop to set three different levels of load current
DE2841781A1 (de) * 1978-09-26 1980-04-10 Bosch Gmbh Robert Einrichtung zum betrieb von elektromagnetischen verbrauchern bei brennkraftmaschinen
DE3047488A1 (de) * 1980-12-17 1982-07-22 Brown, Boveri & Cie Ag, 6800 Mannheim Elektronische schaltungsanordnung fuer ein elektromagnetisches schaltgeraet
DE3135805A1 (de) * 1981-09-10 1983-03-24 Robert Bosch Gmbh, 7000 Stuttgart Elektrische schaltungsanordnung in verbindung mit einem kfz-steuergeraet
US4453652A (en) * 1981-09-16 1984-06-12 Nordson Corporation Controlled current solenoid driver circuit
DE3204234C2 (de) * 1981-10-13 1985-08-29 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Schaltungsanordnung zur Steuerung eines Relais
US4453194A (en) * 1982-03-01 1984-06-05 International Business Machines Corporation Integrated power circuit with current sensing means
JPS59143231A (ja) * 1983-02-07 1984-08-16 三菱電機株式会社 リレ−駆動装置
DE3333833A1 (de) * 1983-09-20 1985-04-04 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltungsanordnung zum gleichstrombetrieb fuer schuetze
US4667117A (en) * 1984-10-31 1987-05-19 International Business Machines Corporation Self-timing and self-compensating print wire actuator driver
JPS61187304A (ja) * 1985-02-15 1986-08-21 Togami Electric Mfg Co Ltd 直流電磁石装置
DE3515951A1 (de) * 1985-05-03 1986-11-06 Siemens AG, 1000 Berlin und 8000 München Ansteuerschaltung fuer ein monostabiles relais
CN1005509B (zh) * 1985-05-06 1989-10-18 西门子公司 电磁开关的控制装置
US4661766A (en) * 1985-12-23 1987-04-28 Caterpillar Inc. Dual current sensing driver circuit
DE3701985A1 (de) * 1987-01-23 1988-08-04 Knorr Bremse Ag Vorschaltelektronik fuer ein gleichspannungserregbares geraet
JPH0666472B2 (ja) * 1987-06-22 1994-08-24 日産自動車株式会社 過電流保護機能を備えたｍｏｓｆｅｔ
FR2617634B1 (fr) * 1987-07-03 1989-12-08 Petercem Sa Dispositif de commande et de controle de contacteur, et procede de controle correspondant

Also Published As

Publication number Publication date
JPH02281527A (ja) 1990-11-19
DE3908192C2 (enExample) 1991-11-28
DK0387729T3 (da) 1995-09-18
EP0387729A3 (en) 1990-11-22
DE3908192A1 (de) 1990-09-20
ES2073467T3 (es) 1995-08-16
US5113307A (en) 1992-05-12
EP0387729A2 (de) 1990-09-19
JP3057571B2 (ja) 2000-06-26
DE59008993D1 (de) 1995-06-08

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