EP1009004A1 - Dispositif de commande d'un électro-aimant, avec détection d'un déplacement intempestif du noyau mobile de l'électro-aimant - Google Patents
Dispositif de commande d'un électro-aimant, avec détection d'un déplacement intempestif du noyau mobile de l'électro-aimant Download PDFInfo
- Publication number
- EP1009004A1 EP1009004A1 EP99410161A EP99410161A EP1009004A1 EP 1009004 A1 EP1009004 A1 EP 1009004A1 EP 99410161 A EP99410161 A EP 99410161A EP 99410161 A EP99410161 A EP 99410161A EP 1009004 A1 EP1009004 A1 EP 1009004A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- phase
- during
- icm
- coil
- 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
Links
Images
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
- H01H47/002—Monitoring or fail-safe circuits
-
- 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
- H01H47/002—Monitoring or fail-safe circuits
- H01H2047/006—Detecting unwanted movement of contacts and applying pulses to coil for restoring to normal status
-
- 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 a device for controlling an electromagnet comprising a core mobile, with at least one call phase, during which the electromagnet receives a inrush current, and a holding phase, during which it receives a holding current lower than the inrush current, device comprising at least one coil connected in series with an electronic switch at the terminals of a supply voltage, means for measuring the current flowing in the coil and the means for controlling the electromagnet, connected to the current measurement means and to a control electrode the electronic switch and comprising means for regulating the current in the coil during the holding phase.
- FR-A-2 .133.652 For the control of an electromagnet, it is known (FR-A-2 .133.652) to supply it temporarily a relatively high inrush current, followed by a more holding current low. This can be achieved as well with a device comprising a single coil, in which the current is chopped to constitute the holding current, only with a double winding consisting of a take-up coil and a holding coil. he is also known to enslave inrush and holding currents to setpoint levels predetermined (FR-A-2,568,715).
- An electromagnet conventionally comprises a movable core whose displacement towards a position in which the electromagnet is actuated is caused by the circulation of the inrush current in the inrush coil. It is then held in this position by the passage of the holding current in the holding coil, which can be the same as the call reel.
- the holding current we seek to reduce the holding current. In certain cases, this reduction in the holding current poses problems due to the existence of shocks, mechanical in particular, likely to cause a untimely displacement of the core towards the rest position of the electromagnet.
- the search for a reduction in the volumes of the electromagnets leads to a decrease in the power which can be dissipated by the coils and makes the electromagnets more sensitive to shocks.
- the invention aims to eliminate these drawbacks.
- control means include detection means, for detecting an untimely movement of the mobile core of the electromagnet during a holding phase depending on the value of the circulating current in the coil when said current is greater than the setpoint during the phase maintenance, and means for controlling the transition to the call phase when a unexpected movement is detected.
- Rapid shock detection allows you to return to the call phase and pick up the core mobile before its movement had an impact on the device it controls.
- the detection means include means for detecting the direction of variation of the current flowing in the coil, a untimely displacement being considered as detected when, during the phase of hold, the current is simultaneously greater than the set value and increasing.
- the means for detecting the direction of variation of the current then preferably comprise means for determining a quantity representative of the derivative of the current by compared to time, an untimely movement being considered as detected when, during the holding phase, the current is greater than the set value and said greatness is positive.
- the untimely displacement is detected by the detection means when, during the holding phase, the current is greater than the setpoint for a predetermined period.
- FIG. 1 represents a device for controlling an electromagnet according to the prior art.
- FIG. 2 shows, schematically, in section, an electromagnet of the type known.
- FIGS. 3a and 3b respectively represent the variations, as a function of time, during a maintenance phase, signals B and Ib of a device according to FIG. 1 in which regulation is done from current samples.
- FIGS. 4a and 4b respectively represent the signals B and Ib of a mode of production of a device according to the invention before and after the detection of a shock.
- FIGS. 5a and 5b respectively represent the signals B and Ib of a device according to the Figure 1, in the case of poor regulation.
- Figure 6 schematically illustrates additional elements of the device according to the figure 1 in an embodiment comprising a call coil.
- FIG. 7 represents a particular embodiment of a subroutine corresponding to a maintenance phase in a device according to the invention.
- FIG. 8 represents a variant of the subroutine of FIG. 7.
- the device according to FIG. 1, which is of the type described in document FR-A-2,568,715 comprises a coil 1 connected in series with a transistor T1 and a measurement resistor R1 at the terminals of a supply voltage Va.
- a freewheeling diode D1 is connected in parallel on the coil 1.
- An output S1 of a control and regulation circuit 2 is connected to a control electrode of the transistor T1 to which it supplies control signals B.
- An input E1 of circuit 2 receives signals A for controlling the electromagnet.
- the circuit 2 is also connected to the terminals of the resistor R1 so as to receive, on an input E2, signals Ib i representative of the current Ib flowing in the coil 1 when the transistor T1 is conductive. Circuit 2 thus makes it possible both to control the device and to control the current in the coil to predetermined values, independent of the supply voltage Va.
- a supply circuit 3, connected to the terminals of the voltage Va supplies the circuit 2 with a stabilized auxiliary supply voltage.
- the electromagnet of known type, represented in FIG. 2, comprises an armature 4 to the interior of which the coil 1 is disposed.
- the coil 1 surrounds a fixed core 5, integral with the frame, and a movable core 6.
- a spring 7 is disposed between the fixed cores and movable so as to separate the movable core 6 from the fixed core.
- a plunger 8 secured to the movable core made protrusion outside the frame 4.
- a control command A When a control command A is applied to the input E1 of circuit 2, it passes first by an appeal phase.
- signals B control the conduction of transistor T1, i.e. closing of the electronic switch constituted by the transistor, so that a relatively high current Ib, or current call, flows in the coil 1.
- Ib current current
- the passage of the inrush current in the coil 1 causes the displacement of the movable core 6 towards the fixed core 5, against the action of the spring 7.
- the plunger 8 no longer projects beyond the armature 4.
- the position of the plunger 8 makes it possible to control the opening or closing a device, for example a contactor or a circuit breaker.
- the call phase lasts long enough to allow complete movement of the movable core 6 and its bonding against the fixed core 5. Subsequently, the passage of a current high calling capacity is no longer necessary to maintain the mobile core in position actuation of the electromagnet and, conventionally, the circuit 2 for controlling and regulation goes to a holding phase During the holding phase, the B signals control the conduction of transistor T1 so that a holding current Ib, lower, circulates in coil 1.
- the holding current Ib is regulated by the circuit 2 so as to be close to a setpoint Icm of the holding current.
- circuit 2 can be constituted by an analog circuit or by a circuit digital, for example, microprocessor.
- regulation is carried out by pulse width modulation (PWM) of a frequency control signal B fixed high
- FIGS. 3a and 3b illustrate the signals B and the current Ib during a holding phase and the consequences of a shock in a device according to FIG. 1 in which the regulation is carried out from samples Ib i of the current taken at a fixed predetermined sampling frequency.
- the current Ib being lower than the set value Icm
- the signal B is at a logic value 1
- the transistor T1 conducts.
- the current Ib is sampled with a sampling period Te by the circuit 2.
- the signal B remains at 1 and the current in the coil increases.
- a sample Ib i of the current Ib reaches or exceeds the set value Icm
- the signal B goes to 0, thus commanding the passage to an opening phase of the electronic switch constituted by the transistor T1 . The latter being blocked, the current in the coil then begins to decrease.
- the circuit 2 periodically sends sampling pulses Bi on the base of the transistor T1, so as to make the latter conductive and to allow a measurement across the resistance R1 of a sample Ib i of the current Ib flowing in the coil.
- These periodic pulses Bi, of period Te have a very short duration, so as not to influence the value of the current Ib in the coil.
- These pulses are shown in FIGS. 3a, 4a and Sa.
- the transistor T1 is considered to be in an opening phase of the holding phase as long as the signal B remains at 0 outside the instants. sampling. In normal operation, the current Ib again becomes lower than the set value Icm after one or two sampling periods, for example at time t3 in FIG. 3b. This is then detected by the circuit 2 which ends the opening phase by returning to the logic value 1 the signal B, again controlling the conduction of the transistor T1 and the growth of the current Ib during at least one sampling period.
- a mechanical shock exerted on the electromagnet or on the device it controls can cause the moving core 6 to move away from the fixed core 5 when the current is too low.
- the microprocessor starts again to control the regulation of the current of holding in the coil. However, this holding current is insufficient to pick up the movable core 6 against the fixed core 5. The shock thus leads to de-excitation nuisance of the electromagnet.
- the electromagnet can be of the type shown in Figure 2. In the energized position of the electromagnet, cores 5 and 6 glued, the plunger 8 is in the withdrawn position. When the voltage applied to his device the command drops below a predetermined value, the current flow is interrupted in the coil and the movable core 6 moves away from the fixed core 5 under the action of the spring 7.
- the plunger 8 then projects outwards, causing immediate opening of the circuit breaker. Subsequent closing of the circuit breaker is only possible when the undervoltage release being energized, the movable core 6 is glued against the fixed core 5. An untimely shock as described above, can therefore lead to opening of the circuit breaker.
- the holding current supplied to the electromagnet after time t5 being insufficient to re-bond the cores, it is then impossible to close the front circuit breaker cut the power supply to the trigger and then re-energize it, which causes a phase call and bonding of the cores.
- an untimely displacement of the mobile core of the electromagnet during a holding phase and the transition to a phase is controlled as soon as such movement is detected. Thanks to the rapid transition to the call phase, effects of nuisance shock are either completely eliminated or reduced.
- an undervoltage release MN
- the untimely shock is detected fairly early in the movement of the mobile core (6) and the call phase occurs before that the plunger 8 could not cause the opening of the circuit breaker, the shock has no result. If the shock is detected later, the circuit breaker may open under the action of the plunger 8.
- the automatic transition to the call phase upon detection of the shock automatically leads to re-gluing of the core and allows reclosing of the circuit breaker. In this case, the drawbacks related to nuisance shock, if they are not completely deleted, are however reduced.
- Figures 4a and 4b illustrate the signals B and Ib in a device according to the invention.
- the device ensures, as before, the regulation of the holding current around the setpoint Icm.
- the current Ib increases.
- the control device detects four successive samples Ib i greater than the set value Icm, it considers that this is due to a shock and it causes the transition to the call phase. This variant is illustrated in Figures 4a and 4b.
- four successive samples greater than Icm have been detected since time t4.
- the Ica value is much higher than the Icm value (10 to 20 times) and causes the mobile and fixed cores to stick together. Conventionally, after a predetermined time (80 ms for example), the control circuit again goes into the holding phase.
- this criterion for detecting a shock is however insufficient.
- the current Ib then goes down to the value of Icm setpoint.
- the maximum value reached by the current Ib at time t8 being relatively high, it requires a period greater than two sampling periods Te to fall back below Icm.
- the current Icm again becomes lower than the Icm setpoint at time t9 only, after five successive samples of the current Ib was greater than the set value.
- this is interpreted by the control circuit 2 as being due to a shock which caused an untimely displacement of the mobile core. However, it is not nothing and it is actually poor regulation.
- the circuit of command would then go to the call phase, when this is unnecessary. Gold use too frequent of the call phase would lead to significant energy dissipation in the coil, which could lead to the destruction of the device.
- FIGS. 4b and 5b makes it possible to see that, if in both cases, during the periods t4-t6 and, respectively t8-t9, the current Ib remains above the threshold Icm, by however, the variations in Ib are completely different.
- the displacement of the mobile nucleus causes the appearance of a force in the coil and, consequently, an increase in current despite the blocking of transistor T1 outside the sampling instants.
- the current Ib decreases as soon as the transistor T1 is in an opening phase.
- a shock is detected when, the transistor T1 being in an opening phase, the current Ib is greater than the set value Icm and, simultaneously, the current Ib in the coil is increasing.
- control device comprises a single coil and on the Figures 4a and 4b, the control circuit 2 regulates the current in the coil either to the value Icm during a hold phase, i.e. at Ica value during a call phase.
- FIG. 6 illustrates the complementary elements of a double embodiment winding.
- a call coil 9 is connected in series with a transistor T2 and a measurement resistance R2 across the supply voltage Va.
- a wheel diode free D2 is connected in parallel on the call coil 9.
- the control electrode of the transistor T2 is connected to an output S2 of the control and regulation circuit 2. If the current in the call coil 9 must be regulated during the call phase, the common point at R2 and T2 is connected to an input E3 of circuit 2.
- the control and regulation circuit 2 can be produced by any suitable means, analog or digital.
- it comprises a microprocessor which performs, with a sampling period Te, the sampling of signals applied to its inputs E2 and E3, their analog / digital conversion, their comparison with the set values Icm and Ica, respectively during the phases of hold and call, and control of transistors T1 and T2.
- a first step F1 of initialization of the holding phase the signal B is set to 1 (conduction of T1) and an indicator i is set to zero. Then the microprocessor of circuit 2 goes to a step F2 of measuring a sample Ib i of the current flowing in the coil 1. If B is zero, a sampling pulse Bi is applied transiently on the basis of transistor T1, the value of B not changing in the program. In a step F3, the microprocessor compares the sample Ib i with the set value Icm. If Ib i is not greater than the set value (NO output of F3), the microprocessor loops back to the input of step F1. The transistor T1 therefore remains conductive and the current Ib continues to rise.
- the subroutine described so far corresponds to a regulation of the current Ib at the value Icm during the holding phase.
- the number of samples retained in step F7 can be modified depending in particular on the desired sampling frequency and reaction speed.
- the value 4 is a value preferential which gives satisfactory results when the supply voltage Va is a full-wave rectified voltage from an electrical network at 50 or 60Hz and for a sampling period of the order of a few hundred microseconds.
- FIG. 8 represents a variant of the subroutine of FIG. 7, in the case where the decision criterion retained is no longer the number of successive samples greater than Icm, but the direction of variation of the holding current when Ib> Icm during a phase opening of transistor T1.
- the quantity ⁇ Ib is representative of the direction of variation of the current Ib after blocking of the transistor T1 at the start of the opening phase, and, more particularly, representative of the derivative of the holding current with respect to time between two successive samples during this phase.
- the microprocessor checks the sign of ⁇ Ib. If the quantity ⁇ Ib is negative or zero (NO output from F12), it goes to step F10, storing the last sample before measuring the next.
- the regulation is carried out from a sampling periodic of the current Ib in the coil.
- the invention is also applicable when the regulation is carried out by modulation of pulse width (PWM) as in the aforementioned prior art.
- PWM pulse width
- the transistor T1 works as a chopper with a fixed chopping frequency and a variable duty cycle.
- Th1 Th1 ⁇ Th
- the length of the period Thl is a function of the difference between the measured current Ib and the setpoint (Icm during the maintenance phase).
- the period of conduction Th1 is less than Th1c, and therefore the N at Nc.
- circuit 2 compares, during each cycle or chopping period Th, the value of the ratio cyclic N to the setpoint duty cycle Nc. If N remains greater than Nc for a predetermined number of successive cycles (at least 2, preferably 4), then circuit 2 considers that there is an untimely displacement of the mobile core and commands the passage into call phase.
- circuit 2 analogously to the mode of embodiment described in Figure 8, takes into account the direction of variation of the holding current when Ib> Icm. For this it compares the successive duty cycles when N is lower than Nc (Ib> Icm) and considers that there is untimely displacement of the mobile core when the duty cycle N being less than Nc for at least two successive cycles, this duty cycle is decreasing. This means that the current is both increasing and greater than the set value Icm for more than one chopping period. As before, it then controls the transition to the call phase.
- the detection of an inadvertent displacement of the mobile core during a holding phase is linked to monitoring the current in the coil during a phase of maintaining and detecting such a displacement causes the transition to the call phase.
Landscapes
- Control Of Linear Motors (AREA)
- Relay Circuits (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
Claims (10)
- Dispositif de commande d'un électro-aimant comportant un noyau mobile (6), avec au moins une phase d'appel, pendant laquelle l'électro-aimant reçoit un courant d'appel, et une phase de maintien, pendant laquelle il reçoit un courant de maintien plus faible que le courant d'appel, dispositif comportant au moins une bobine (1) connectée en série avec un interrupteur électronique (T1) aux bornes d'une tension d'alimentation (Va), des moyens de mesure du courant (Ib) circulant dans la bobine et des moyens (2) de commande de l'électro-aimant, connectés aux moyens de mesure du courant (Ib) et à une électrode de commande de l'interrupteur électronique (T1) et comportant des moyens de régulation du courant dans la bobine (1) à une valeur de consigne prédéterminée (Icm) pendant la phase de maintien, dispositif caractérisé en ce que les moyens de commande comportent des moyens de détection, pour détecter un déplacement intempestif du noyau mobile (6) de l'électro-aimant pendant une phase de maintien en fonction de la valeur du courant (Ib) circulant dans la bobine (1) lorsque ledit courant est supérieur à la valeur de consigne (Icm) pendant la phase de maintien, et des moyens de commande de passage en phase d'appel lorsqu'un déplacement intempestif est détecté.
- Dispositif selon la revendication 1, caractérisé en ce que les moyens de détection comportent des moyens de détection du sens de variation du courant (Ib) circulant dans la bobine, un déplacement intempestif étant considéré comme détecté lorsque, pendant la phase de maintien, le courant (Ib) est simultanément supérieur à la valeur de consigne (Icm) et croissant.
- Dispositif selon la revendication 2, caractérisé en ce que les moyens de détection du sens de variation du courant (Ib) comportent des moyens de détermination d'une grandeur (ΔIb) représentative de la dérivée du courant par rapport au temps, un déplacement intempestif étant considéré comme détecté lorsque pendant la phase de maintien, le courant (Ib) est supérieur à la valeur de consigne (Icm) et ladite grandeur est positive.
- Dispositif selon la revendication 1, caractérisé en ce qu'un déplacement intempestif est détecté par les moyens de détection lorsque, pendant la phase de maintien, le courant (Ib) est supérieur à la valeur de consigne (Icm) pendant une durée prédéterminée.
- Dispositif selon la revendication 4, caractérisé en ce que les moyens de mesure du courant comportent des moyens d'échantillonnage du courant, avec une période d'échantillonnage (Te) prédéterminée, et en ce qu'un déplacement intempestif est détecté si plus de deux échantillons successifs (Ibi) du courant sont supérieurs à la valeur de consigne (Icm) pendant la phase de maintien.
- Dispositif selon la revendication 5, caractérisé en ce qu'un déplacement intempestif est détecté lorsque plus de quatre échantillons successifs du courant sont supérieurs à la valeur de consigne (Icm) pendant la phase de maintien.
- Dispositif selon l'une des revendications 5 à 6, caractérisé en ce que la période d'échantillonnage (Te) est de l'ordre de quelques centaines de microsecondes.
- Dispositif selon l'une quelconque des revendications 1, 2 et 4, caractérisé en ce que, les moyens de régulation commandant la conduction de l'interrupteur électronique (T1) avec une période de hachage fixe et un rapport cyclique variable (N) fonction de la différence entre la valeur du courant (Ib) circulant dans la bobine et la valeur de consigne (Icm), les moyens de détection comparent à chaque période de hachage le rapport cyclique (N) à un rapport cyclique de consigne (Nc).
- Dispositif selon la revendication 8, caractérisé en ce qu'un déplacement intempestif est considéré comme détecté lorsque, pendant une phase de maintien, le rapport cyclique (N) est inférieur au rapport cyclique de consigne (Nc) pendant au moins deux périodes de hachage successives.
- Dispositif selon la revendication 8, caractérisé en ce qu'un déplacement intempestif est considéré comme détecté lorsque, pendant la phase de maintien, le rapport cyclique (N) est simultanément décroissant et inférieur au rapport cyclique de consigne Nc pendant au moins deux périodes de hachage successives.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9815554A FR2786915B1 (fr) | 1998-12-07 | 1998-12-07 | Dispositif de commande d'un electro-aimant, avec detection d'un deplacement intempestif du noyau mobile de l'electro-aimant |
FR9815554 | 1998-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1009004A1 true EP1009004A1 (fr) | 2000-06-14 |
EP1009004B1 EP1009004B1 (fr) | 2004-01-07 |
Family
ID=9533780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99410161A Expired - Lifetime EP1009004B1 (fr) | 1998-12-07 | 1999-11-16 | Dispositif de commande d'un électro-aimant, avec détection d'un déplacement intempestif du noyau mobile de l'électro-aimant |
Country Status (4)
Country | Link |
---|---|
US (1) | US6317308B1 (fr) |
EP (1) | EP1009004B1 (fr) |
DE (1) | DE69914053T2 (fr) |
FR (1) | FR2786915B1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2019396A1 (fr) | 2007-07-23 | 2009-01-28 | Schneider Electric Industries SAS | Actionneur électromagnétique à au moins deux bobinages |
KR100884436B1 (ko) * | 2001-06-06 | 2009-02-19 | 이스트맨 코닥 캄파니 | 정공 수송층 및/또는 전자 수송층 내에 색상 중립도펀트를 포함하는 유기 발광 장치 |
EP2200055A1 (fr) * | 2008-12-19 | 2010-06-23 | Schneider Electric Industries SAS | Appareil électrique interrupteur à fonctionnement optimisé |
EP2466607A1 (fr) | 2010-12-17 | 2012-06-20 | Schneider Electric Industries SAS | Actionneur electromagnetique à au moins deux bobines |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2367962B (en) * | 2000-10-14 | 2004-07-21 | Trw Ltd | Multiple channel solenoid current monitor |
US6934140B1 (en) * | 2004-02-13 | 2005-08-23 | Motorola, Inc. | Frequency-controlled load driver for an electromechanical system |
US7382400B2 (en) * | 2004-02-19 | 2008-06-03 | Robert Bosch Gmbh | Image stabilization system and method for a video camera |
US8264810B2 (en) * | 2009-10-01 | 2012-09-11 | Drs Power & Control Technologies, Inc. | Electrically assisted safing of a linear actuator to provide shock tolerance |
JP6077511B2 (ja) * | 2014-10-03 | 2017-02-08 | 株式会社鷺宮製作所 | 電磁弁駆動制御装置、および、電磁弁駆動制御装置を備えた電磁弁 |
US20170149379A1 (en) * | 2015-11-20 | 2017-05-25 | Enphase Energy, Inc. | Interconnect device for use in islanding a microgrid |
FR3055736B1 (fr) * | 2016-09-02 | 2018-09-28 | Schneider Electric Industries Sas | Procede de commande d'un dispositif d'actionnement, dispositif d'actionnement et appareil de commutation associes |
DE102017102637A1 (de) * | 2017-02-10 | 2018-08-16 | Pilz Gmbh & Co. Kg | Schaltungsanordnung zum Betreiben mindestens eines Relais |
CN110767502B (zh) * | 2018-07-27 | 2021-10-08 | 施耐德电气工业公司 | 用于调节线圈的电流的方法、控制器和系统 |
CN113012981B (zh) * | 2019-12-20 | 2024-06-25 | 施耐德电气工业公司 | 接触器及其控制设备和控制方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0411903A2 (fr) * | 1989-07-31 | 1991-02-06 | Nec Corporation | Dispositif pour remettre automatiquement un relais verrouillé dans sa position normale |
EP0779631A2 (fr) * | 1995-12-13 | 1997-06-18 | Sumitomo Electric Industries, Ltd. | Appareil et méthode de commande de courant à modulation de largeur d'impulsion |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5539608A (en) * | 1993-02-25 | 1996-07-23 | Eaton Corporation | Electronic interlock for electromagnetic contactor |
-
1998
- 1998-12-07 FR FR9815554A patent/FR2786915B1/fr not_active Expired - Fee Related
-
1999
- 1999-11-16 EP EP99410161A patent/EP1009004B1/fr not_active Expired - Lifetime
- 1999-11-16 DE DE69914053T patent/DE69914053T2/de not_active Expired - Lifetime
- 1999-11-23 US US09/447,733 patent/US6317308B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0411903A2 (fr) * | 1989-07-31 | 1991-02-06 | Nec Corporation | Dispositif pour remettre automatiquement un relais verrouillé dans sa position normale |
EP0779631A2 (fr) * | 1995-12-13 | 1997-06-18 | Sumitomo Electric Industries, Ltd. | Appareil et méthode de commande de courant à modulation de largeur d'impulsion |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100884436B1 (ko) * | 2001-06-06 | 2009-02-19 | 이스트맨 코닥 캄파니 | 정공 수송층 및/또는 전자 수송층 내에 색상 중립도펀트를 포함하는 유기 발광 장치 |
EP2019396A1 (fr) | 2007-07-23 | 2009-01-28 | Schneider Electric Industries SAS | Actionneur électromagnétique à au moins deux bobinages |
EP2200055A1 (fr) * | 2008-12-19 | 2010-06-23 | Schneider Electric Industries SAS | Appareil électrique interrupteur à fonctionnement optimisé |
FR2940509A1 (fr) * | 2008-12-19 | 2010-06-25 | Schneider Electric Ind Sas | Appareil electrique interrupteur a fonctionnement optimise |
EP2466607A1 (fr) | 2010-12-17 | 2012-06-20 | Schneider Electric Industries SAS | Actionneur electromagnetique à au moins deux bobines |
Also Published As
Publication number | Publication date |
---|---|
EP1009004B1 (fr) | 2004-01-07 |
DE69914053T2 (de) | 2004-10-14 |
FR2786915B1 (fr) | 2001-01-12 |
DE69914053D1 (de) | 2004-02-12 |
FR2786915A1 (fr) | 2000-06-09 |
US6317308B1 (en) | 2001-11-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1009006B1 (fr) | Dispositif de commande standard d'un electro-aimant d'ouverture ou de fermeture d'un disjoncteur | |
EP1009004B1 (fr) | Dispositif de commande d'un électro-aimant, avec détection d'un déplacement intempestif du noyau mobile de l'électro-aimant | |
EP0462023B1 (fr) | Commutateur statique | |
EP0240434B1 (fr) | Circuit de protection d'alimentation à découpage | |
FR2742013A1 (fr) | Procede et dispositif de limitation d'appel de courant d'un condensateur associe a un redresseur | |
EP0204624B1 (fr) | Dispositif de surveillance d'état d'un commutateur électrique et relais électrique comportant application | |
FR2812476A1 (fr) | Convertisseur alternatif-continu | |
EP3288059B1 (fr) | Déclencheur commandable pour un disjoncteur électrique | |
EP0562908A1 (fr) | Circuit d'alimentation pour relais électromagnétique | |
EP0526307B1 (fr) | Dispositif de commande d'un démarreur de véhicule automobile | |
FR2601811A1 (fr) | Circuit de commande pour la bobine excitatrice d'un electro-aimant | |
EP0252808B1 (fr) | Dispositif de commande et de contrôle d'un contacteur et procédé de contrôle correspondant | |
EP1376843A2 (fr) | Commande d'un thyristor d'un pont redresseur | |
EP1139361B1 (fr) | Circuit électrique pour la transmission d'une information d'état, notamment d'un organe de matériel ferroviaire roulant, et système électrique incorporant un tel circuit | |
FR2538631A1 (fr) | Procede et dispositif de charge d'un condensateur de blocage dans un circuit de commande d'un moteur electrique de traction | |
EP3291271B1 (fr) | Procédé de commande d'un dispositif d'actionnement, dispositif d'actionnement et appareil de commutation associés | |
FR2828668A1 (fr) | Retracteur de ceinture de securite | |
FR2501899A1 (fr) | Circuit de commande du fonctionnement d'un dispositif electromagnetique comportant un solenoide et un induit | |
EP0021867B1 (fr) | Dispositif d'alimentation à découpage régulé contre les variations de tension d'entrée et de puissance de sortie, notamment pour récepteur de télévision | |
FR2535551A1 (fr) | Dispositif de commutation electronique a faible dissipation de puissance | |
EP0768683B1 (fr) | Circuit d'alimentation d'une bobine d'excitation d'un électro-aimant | |
FR2803956A1 (fr) | Dispositif et procede pour alimenter une bobine de commande d'un contacteur electrique, notamment d'un contacteur de puissance | |
CA2124630C (fr) | Dispositif de commande du fonctionnement d'un contacteur | |
WO2004051686A1 (fr) | Commande de relais electromagnetiques | |
FR2601190A1 (fr) | Procede et dispositif de commande d'un contacteur |
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 |
Kind code of ref document: A1 Designated state(s): DE GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20000708 |
|
AKX | Designation fees paid |
Free format text: DE GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHNEIDER ELECTRIC INDUSTRIES SAS |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 69914053 Country of ref document: DE Date of ref document: 20040212 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040216 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20041008 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20101120 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121116 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20161115 Year of fee payment: 18 Ref country code: GB Payment date: 20161116 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69914053 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20171116 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180602 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20171116 |