EP0424280A1 - Elektronische Ansteuerungsschaltung für einen gleichstromgespeisten Schwingmotor - Google Patents

Elektronische Ansteuerungsschaltung für einen gleichstromgespeisten Schwingmotor Download PDF

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Publication number
EP0424280A1
EP0424280A1 EP90420426A EP90420426A EP0424280A1 EP 0424280 A1 EP0424280 A1 EP 0424280A1 EP 90420426 A EP90420426 A EP 90420426A EP 90420426 A EP90420426 A EP 90420426A EP 0424280 A1 EP0424280 A1 EP 0424280A1
Authority
EP
European Patent Office
Prior art keywords
coil
signal
chopper
voltage
input
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.)
Granted
Application number
EP90420426A
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English (en)
French (fr)
Other versions
EP0424280B1 (de
Inventor
Alain Kobilsek
Dominique Villard
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0424280A1 publication Critical patent/EP0424280A1/de
Application granted granted Critical
Publication of EP0424280B1 publication Critical patent/EP0424280B1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3021—Charging means using unidirectional coupling

Definitions

  • the invention relates to an electronic circuit for controlling a vibrating motor comprising a control coil, means for controlling the passage of current in the coil causing, when a control signal from the vibrating motor is applied to them, alternately the power supply. current from the coil during an active period and non-supply of the coil during a rest period.
  • a device for arming a spring of a control mechanism of a breaking device in particular an electrical switch or circuit breaker, as described, for example, in French patent 2,593,323
  • the control coil of the vibrating motor is supplied by a periodic current.
  • a rectified alternating current is applied to the coil.
  • the object of the invention is to provide an electronic circuit for controlling a vibrating motor supplied from a DC supply voltage, the supply voltage possibly varying relatively considerably within different ranges.
  • the means for controlling the flow of current through the coil comprise a static switch, connected in series with the coil across a continuous supply voltage and comprising an electrode control connected to the output of a chopper, said chopper producing a binary signal making the static switch conductive during said active period, the control means also comprising means for controlling the duration of the active period to the current passing through the coil.
  • control means comprise a measuring resistor arranged in series with the static switch and the coil, and a comparator receiving on a first input a signal representative of the voltage across the measurement resistance and on a second input a reference signal, and whose output is applied to a servo input of the chopper so as to control a transition the output signal of the chopper from its active period to its rest period when the current passing through the coil reaches a predetermined value.
  • the coil 10 for controlling a vibrating motor (not shown) of a known type is supplied from a DC voltage source V1.
  • the coil 10 is connected in series with a transistor T, preferably of the MOS type, and a measurement resistor R1 between the terminals 12 and 14 of the power source. The coil 10 is therefore supplied only when the transistor T is made conductive by the control circuit.
  • the coil 10 is supplied with a periodic signal, the transistor T being, in the presence of a control signal from the vibrating motor, made alternately conductive and non-conductive and the palette of the vibrating motor being attracted by the coil when the transistor T is conductive and returned by a spring when the transistor is blocked.
  • a switch 16 normally open, connecting the DC voltage source V1 to a circuit 18 supplying the control circuit, is closed in the presence of the vibrating motor control signal.
  • the switch 16 and its control can be achieved by any suitable means.
  • the supply circuit 18 supplies a chopper 20 with a stabilized DC voltage V2.
  • the chopper 20 comprises an astable multivibrator producing a signal A intended to be applied to the gate of the transistor T.
  • the signal A is a binary type signal passing alternately from a high state to a low state and vice versa, with a certain duty cycle .
  • a conventional multivibrator (fig. 2) comprises an operational amplifier 22, supplied by the voltage V2, and whose non-inverting input receives a reference voltage (signal B) taking two distinct states as a function of the output voltage.
  • this reference voltage is obtained by means of a voltage divider constituted by two resistors R2 and R3, in series across the supply voltage V2, the non-inverting input being, moreover, connected to the output A1 of the amplifier 22 by a resistor R4.
  • the inverting input of the operational amplifier is connected to ground by a capacitor C1 and to the output A1 of the amplifier by a resistor R5.
  • a limiting resistor R6 connects the output of amplifier 22 to the gate of transistor T.
  • the durations of the high and low states of such an astable circuit are fixed, proportional respectively to the durations of charge and discharge of the capacitor C1.
  • the stabilized supply voltage V2 being fixed, for example equal to 15 V, the increase in the supply voltage V1 of the vibrating motor within a determined range can lead to harmful overheating. Indeed, the duration of the passage of the current in the coil 10 being fixed, independently of the value of the voltage V1, the current crossing the coil is all the more important as the voltage V1 is important.
  • the duration of the high state of the output signal A of the chopper 20 is controlled by the current passing through the coil 10.
  • the voltage C across the measurement resistor R1 ( fig.1), representative of this current, is applied to a servo input of the chopper 20.
  • voltage C is applied to the non-inverting input of an operational amplifier 24, supplied by voltage V2 and whose inverting input is connected to a voltage of Cref reference.
  • V2 supplied by voltage V2 and whose inverting input is connected to a voltage of Cref reference.
  • the latter is obtained by means of a voltage divider constituted by two resistors R7 and R8 in series between the ground and the voltage V2.
  • the output of the operational amplifier 24 is connected to the anode of a diode D1, the cathode of which is connected to the inverting input of the operational amplifier 22.
  • FIG. 3 illustrates the waveforms obtained at various points of the chopper according to FIG. 2.
  • V2 15 V and the resistors R2, R3 and R4 are identical, so that the signal B applied to the non-inverting input of the amplifier 22 passes from a low reference value (5V ) to a high reference value (10V) when the signal A1 passes respectively from its low state (0V) to its high state (15V).
  • the chopper then operates normally, as in the absence of servo-control: signal E, corresponding to the voltage across the capacitor, which is at its maximum reference value (10V) at the start (t0, t2, t4, t6, t8) of the rest period (T1) of the control signal A1, tends to 0 with a predetermined time constant R5 C1 (discharge of C1).
  • FIG. 3 shows the signals C obtained during the period T2 respectively with a supply voltage V1 close to the nominal voltage (24V) (t1-t2), with a voltage V1 lower than this nominal voltage (t5- t6) and with a voltage V1 greater than this nominal voltage (t3-t4 and t7-t8).
  • the end of the active period T2 is therefore determined by the moment when the current passing through the coil 10 reaches a predetermined peak value Ic, that is to say when the voltage C reaches the reference voltage Cref.
  • This active period T2 nevertheless remains always less than the period T2max obtained when the astable multivibrator operates without slaving.
  • a protection and discharge circuit is arranged in parallel on the transistor T and the resistor R1 so as to limit the overvoltages at the terminals of the transistor and to rapidly discharge the coil 10 when the transistor is blocked. It is indeed essential to protect the transistor against overvoltages created by a rapid variation of the current in the coil and to quickly evacuate the energy stored in the coil so that a spring recalls the palette of the vibrating motor during the rest period (T1).
  • Such a circuit is preferably constituted (fig. 1) by a diode D2 of the Transil type arranged in series with a power resistor R9 between the drain of the transistor T and the ground.
  • the same control circuit can be used for different ranges of supply voltage to the coil (10).
  • four ranges of DC voltage are generally used: 24-30V, 48-60V, 100-125V and 220-250V.
  • Each voltage range is associated with a vibrating motor having a coil whose resistance varies from one range to another.
  • the measurement resistance R1 is determined, taking into account the resistance of the coil, so as to allow correct servoing in all the ranges.
  • the invention is not limited to the particular embodiment shown.
  • the chopper 20 could be supplied permanently, the supply voltage V1 being applied to the coil only in the presence of a signal for controlling the vibrating motor.
  • the functions of cutting by the MOS transistor (T) and of measuring the current by the resistor R1 can be fulfilled by a MOS transistor with internal current measurement.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Stepping Motors (AREA)
EP19900420426 1989-10-17 1990-10-03 Elektronische Ansteuerungsschaltung für einen gleichstromgespeisten Schwingmotor Expired - Lifetime EP0424280B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR89136665 1989-10-17
FR8913665A FR2653275B1 (fr) 1989-10-17 1989-10-17 Circuit electronique de commande d'un moteur vibrant alimente en courant continu.

Publications (2)

Publication Number Publication Date
EP0424280A1 true EP0424280A1 (de) 1991-04-24
EP0424280B1 EP0424280B1 (de) 1994-08-03

Family

ID=9386548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900420426 Expired - Lifetime EP0424280B1 (de) 1989-10-17 1990-10-03 Elektronische Ansteuerungsschaltung für einen gleichstromgespeisten Schwingmotor

Country Status (3)

Country Link
EP (1) EP0424280B1 (de)
DE (1) DE69011269D1 (de)
FR (1) FR2653275B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0720193A1 (de) * 1994-12-28 1996-07-03 Schneider Electric Sa Elektrisches Steuergerät zum Öffnen und Schliessen eines Last- oder Leistungsschalters
WO2000058983A1 (en) * 1999-03-29 2000-10-05 Siemens Energy & Automation, Inc. An electrical control module for a circuit breaker stored energy operator
EP2551881A1 (de) * 2011-07-25 2013-01-30 ABB Technology AG Aktor für einen Schutzschalter
EP2763155A1 (de) * 2013-02-01 2014-08-06 General Electric Company Elektrischer Antrieb für einen Schutzschalter und Verfahren dafür

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104505214B (zh) * 2014-12-19 2016-08-24 安阳凯地电磁技术有限公司 一种大推力低温升无噪音交流电磁铁

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870931A (en) * 1974-02-04 1975-03-11 Sun Chemical Corp Solenoid servomechanism
DE3112621A1 (de) * 1981-03-30 1982-10-21 Elektroteile GmbH, 7772 Uhldingen-Mühlhofen "schaltungsanordnung zur ansteuerung von elektromagneten"
GB2127186A (en) * 1982-09-10 1984-04-04 Bosch Gmbh Robert Pulsed regulation of current flow in coil circuit
GB2185631A (en) * 1986-01-17 1987-07-22 Merlin Gerin Spring loading device of an automatic circuit breaker by a oscillating armature electromagnet
US4720762A (en) * 1986-12-29 1988-01-19 Motorola, Inc. Current drive circuit
DE3701985A1 (de) * 1987-01-23 1988-08-04 Knorr Bremse Ag Vorschaltelektronik fuer ein gleichspannungserregbares geraet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870931A (en) * 1974-02-04 1975-03-11 Sun Chemical Corp Solenoid servomechanism
DE3112621A1 (de) * 1981-03-30 1982-10-21 Elektroteile GmbH, 7772 Uhldingen-Mühlhofen "schaltungsanordnung zur ansteuerung von elektromagneten"
GB2127186A (en) * 1982-09-10 1984-04-04 Bosch Gmbh Robert Pulsed regulation of current flow in coil circuit
GB2185631A (en) * 1986-01-17 1987-07-22 Merlin Gerin Spring loading device of an automatic circuit breaker by a oscillating armature electromagnet
US4720762A (en) * 1986-12-29 1988-01-19 Motorola, Inc. Current drive circuit
DE3701985A1 (de) * 1987-01-23 1988-08-04 Knorr Bremse Ag Vorschaltelektronik fuer ein gleichspannungserregbares geraet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MACHINE DESIGN. vol. 59, no. 26, 12 novembre 1987, CLEVELAND US pages 151 - 152; CARLISLE: "MOSFET REGULATES SOLENOID CURRENT" *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0720193A1 (de) * 1994-12-28 1996-07-03 Schneider Electric Sa Elektrisches Steuergerät zum Öffnen und Schliessen eines Last- oder Leistungsschalters
FR2729005A1 (fr) * 1994-12-28 1996-07-05 Schneider Electric Sa Dispositif electrique de commande d'ouverture et de fermeture d'un interrupteur ou d'un disjoncteur
WO2000058983A1 (en) * 1999-03-29 2000-10-05 Siemens Energy & Automation, Inc. An electrical control module for a circuit breaker stored energy operator
EP2551881A1 (de) * 2011-07-25 2013-01-30 ABB Technology AG Aktor für einen Schutzschalter
WO2013013984A1 (en) * 2011-07-25 2013-01-31 Abb Technology Ag Method for driving an actuator of a circuit breaker, and actuator for a circuit breaker
CN103703535A (zh) * 2011-07-25 2014-04-02 Abb技术有限公司 用于驱动断路器的致动器的方法以及用于断路器的致动器
CN103703535B (zh) * 2011-07-25 2016-05-04 Abb技术有限公司 用于驱动断路器的致动器的方法以及用于断路器的致动器
EP2763155A1 (de) * 2013-02-01 2014-08-06 General Electric Company Elektrischer Antrieb für einen Schutzschalter und Verfahren dafür
US9184014B2 (en) 2013-02-01 2015-11-10 General Electric Company Electrical operator for circuit breaker and method thereof

Also Published As

Publication number Publication date
EP0424280B1 (de) 1994-08-03
DE69011269D1 (de) 1994-09-08
FR2653275A1 (fr) 1991-04-19
FR2653275B1 (fr) 1991-12-13

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