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DE2802790A1 - AID CIRCUIT FOR A RELAY - Google Patents

AID CIRCUIT FOR A RELAY

Info

Publication number
DE2802790A1
DE2802790A1 DE19782802790 DE2802790A DE2802790A1 DE 2802790 A1 DE2802790 A1 DE 2802790A1 DE 19782802790 DE19782802790 DE 19782802790 DE 2802790 A DE2802790 A DE 2802790A DE 2802790 A1 DE2802790 A1 DE 2802790A1
Authority
DE
Germany
Prior art keywords
relay
relay winding
diode
state
leads
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
DE19782802790
Other languages
German (de)
Other versions
DE2802790C2 (en
Inventor
Walter Herrmann
Dirk Dipl Ing Neumann
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.)
NEUMANN ELEKTRONIK GmbH
Original Assignee
NEUMANN ELEKTRONIK 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 NEUMANN ELEKTRONIK GmbH filed Critical NEUMANN ELEKTRONIK GmbH
Priority to DE19782802790 priority Critical patent/DE2802790C2/en
Priority to AT803778A priority patent/AT373720B/en
Priority to CH1257378A priority patent/CH633906A5/en
Priority to SE7900432A priority patent/SE441481B/en
Publication of DE2802790A1 publication Critical patent/DE2802790A1/en
Application granted granted Critical
Publication of DE2802790C2 publication Critical patent/DE2802790C2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/043Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current making use of an energy accumulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Alarm Systems (AREA)
  • Relay Circuits (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

In the auxiliary response circuit for a relay which is controlled via supply leads (L1/R1, L2/R2) which carry a DC voltage, for example in calling or emergency calling systems, the supply leads, which lead to the ends of the relay winding (W), can be switched over from a polarity which corresponds to the quiescent state into a reverse polarity which corresponds to the operating state of the auxiliary response circuit. A diode (D2, D3) which is reversed in the said quiescent state is in each case connected upstream and downstream of the relay winding. Connected in parallel with one (D2) of these diodes is a capacitor (C) whose electrode which is connected to one of the terminals of the relay winding is connected via a further diode (D1), which is in the forward direction in the quiescent state, to that supply lead which leads to the other terminal of the relay winding. <IMAGE>

Description

Ansprechhilfsschaltung für ein Auxiliary response circuit for a

Relais. Relay.

Gegenstand der Erfindung ist eine Ansprechhilfsschaltung für ein Relais.The invention relates to an auxiliary response circuit for a relay.

Wenii ein Relais aus größerer Entfernung, d.h. über längere Zuleitungen angesteuert werden muß, reich-t oft bei gegebener Betriebsspanrlung die am Ende der Zuleiturlyeil verfügbare elektrische Energie nicht mehr aus, das Relais zum Ansprechen u bringen, obwohl sie zum Halten des Relais noch ausreichen würde.Wenii a relay from a greater distance, i.e. over longer supply lines must be controlled, often enough at the end of the given operating voltage the supply line available electrical energy is no longer off, the relay to Trigger u, although it would still be sufficient to hold the relay.

Die der Erfindung zugrunde liegende Aufgabe besteht darin, eine einfach aufgebaute Ansprechhilfsschaltung für ein Relais zu schaffen, die insbesondere bei über lange Leitungswege anzusteuernden Relais, beispielsweise in Ruf- oder Notrufanlagen, verwendbar ist.The object of the invention is to provide a simple to create built-up auxiliary circuit for a relay, in particular with Relays to be controlled via long cable routes, for example in call or emergency call systems, is usable.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im kennzeichnenden Teil des Patentanspruchs angegebenen Merkmale.This object is achieved according to the invention with the in the characterizing Part of the claim specified features.

Wie weiter unten anhand eines Ausführungsbeispiels näher erläutert, ist es mit der erfidunsgemäßen Schaltung möglich, durch Umpolen der an den Zuleitungen anliegenden Gleichspannung die am Ende der Zuleitungen zur Verfügung stehende Spannung automatisch zu verdoppeln, wodurch das Ansprechen des Relais sichergestellt ist. Nuch dem Ansprechen sinkt die Spannung wieder auf den normalen Betriebswert ab.As explained in more detail below using an exemplary embodiment, it is possible with the circuit according to the invention by reversing the polarity of the leads applied DC voltage is the voltage available at the end of the supply lines automatically doubled, whereby the response of the relay is ensured. After responding, the voltage drops back to the normal operating value.

Die erfindungsgemäße Schaltung ist mit großem Vorteil anwendbar, bei Notrufanlagen mit beispielsweise an Landstraßen in größerem Abstand von einer Zentrale aufgestell'uen Notrufsäulen. Bei derartigen Notrufanlagen müssen gewisse Schaltvorgänge, beispielsweise das Wiederausschalterl einer Rundumleuchte, von der Zentrale aus gesteuert werden, wobei in manchen Fällen sowieso ein Umpolen der Spannung scattfindet, was die Anwendung der erfindungsgemäßen Schaltung begünstigt.The circuit according to the invention can be used with great advantage in Emergency call systems with, for example, on country roads at a greater distance from a control center set up Emergency telephones. With such emergency systems must certain switching processes, for example switching a rotating beacon off again, can be controlled from the control center, in some cases reversing the polarity anyway the voltage scattfinds, which favors the use of the circuit according to the invention.

Im folgenden wird anhand der Zeichnungeil ein Ausführungsbeispiel der erfindungsgemäßen Schaltung näher erläutert.In the following an exemplary embodiment is given with reference to the drawing the circuit according to the invention explained in more detail.

Es zeigen: Fig. 1 eine Ansprechhilfsschaltung im Ruhezustand; Fig. 2 die Ansprechhilfsscialtung nach Fig. l im Arbeitszustand in der Ansprechphase und Fig. 3 die Ansprechhilfsschaltung nach Fig. 1 im Arbeitszustands in der Haltephase.1 shows an auxiliary response circuit in the idle state; Fig. 2 the response assistance system according to FIG. 1 in the working state in the response phase and FIG. 3 shows the auxiliary response circuit according to FIG. 1 in the operating state in the holding phase.

-en Bei den in den Fig. 1 bis 3 dargestellten Schaltung sind die Enden l und 2 einer Relaiswicklung W an Zuleitungen L1 und L2 angeschlossen, deren Leitungswiderstand symbolisch mit R1 und R2 bezeichnet ist. -en In the circuit shown in Figs. 1 to 3 are the Ends l and 2 of a relay winding W connected to leads L1 and L2, whose Line resistance is symbolically denoted by R1 and R2.

Das Ende l der Relaiswicklung W ist mit der Kathode einer Diode D2 verbunden, deren Anode mit der Zuleitung L2 verbunden ist. Das Ende 2 der Relaiswicklung W ist mit: der Anode einer Diode D3 verbunden, deren Kathode mit der Zuleitung Ll verbunden ist. Weiterhin ist ein Kondensator C einerseits mit dem Ende l der Relaiswicklung W und andererseits mit der Zuleitung L2 verbunden, d.h. er ist parallel zur Diode D2 geschaltet. Die mit dem Ende 1 der Relaiswicklung W verbundene Elektrode des Kondensators C ist weiterhin mit der Kathode einer Diode Dl verbunden, deren Anode mit der Zuleitung L1 verbunden ist.The end l of the relay winding W is connected to the cathode of a diode D2 connected, the anode of which is connected to the lead L2. The end 2 of the relay winding W is connected to: the anode of a diode D3, the cathode of which is connected to the lead Ll connected is. Furthermore, a capacitor C is on the one hand with the end l of the relay winding W and on the other hand connected to the lead L2, i.e. it is parallel to the diode D2 switched. The electrode of the connected to the end 1 of the relay winding W Capacitor C is also connected to the cathode of a diode Dl, the anode of which is connected to the feed line L1.

In Fig. 1 ist die Schaltung im Ruhezustand dargestellt, indem die Betriebsspannung U so angelegt ist, daß an der Zuleitung Ll positives und an der Zuleitung L2 negatives Potential liegt. iii diesem Zustand wird der Kondensator C über die Diode Dl auf die Betriebsspannung U aufgeladen.In Fig. 1, the circuit is shown in the idle state by the Operating voltage U is applied so that at the Lead Ll positive and there is a negative potential on the lead L2. iii this state becomes the capacitor C charged to the operating voltage U via the diode Dl.

Ein Ansprechen des Relais W wird dabei durch die Diode D3 verhindert.A response of the relay W is prevented by the diode D3.

Wenn das Relais angesteuert werden soll, wird die Betriebsspannung U umgepolt und die Schaltung befindet sich im Arbeitszustand. In Fig. 2 ist der erste Teil dieses Arbeitszustandes, die Ansprechphase des Relais dargestellt. In diesem Zustand addiert sich die Betriebsspannung U zu der durch die Aufladung des Kondensators C an diesem erzeugten Spannung zu einer Spannung vom Wert 2U Dies hat zur Folge, d-aß durch die Relaiswicklung W ein Strom fließt, der zum Ansprechen des Relais ausreicht.When the relay is to be controlled, the operating voltage U reversed and the circuit is in working condition. In Fig. 2 is the first part of this working state, the response phase of the relay is shown. In In this state, the operating voltage U is added to that generated by the charging of the Capacitor C at this generated voltage to a voltage of the value 2U this has As a result, a current flows through the relay winding W which is necessary to respond of the relay is sufficient.

Nach dem Anziehen des Relais und der Entladung des Kondensators C übernimmt die Diode D2 den durch die Relaiswicklung W gehenden Stromfluß, wobei zum Halten des Relais die normale Betriebsspannung U ausreicht. Dieser Zustand ist in Fig. 3 dargestellt.After pulling in the relay and discharging the capacitor C the diode D2 takes over the current flow going through the relay winding W, wherein the normal operating voltage U is sufficient to hold the relay. This state is shown in Fig. 3.

Der Kondensator C wirkt also wie eine in der Ansprechphase des Relais kurzzeitig in Serie zur Betriebsspannung geschaltete Batterie mit der Klemmenspannung U.The capacitor C thus acts like one in the response phase of the relay Battery connected briefly in series to the operating voltage with the terminal voltage U.

Claims (1)

Patentanspruch Ansprechhilfsschaltung für ein Relais, dadurch gekennzeichne-t, daß die zu den Enden der Relaiswicklung (W) führenden Zuleitungen (L1, L2) von einem Ruhezustand in einen Arbeitszustand umgekehrter Polarität umschaltbar sind und der Relaiswicklung (W) jeweils eine im Ruhezustand sperrende Diode (D2, D3) vor- und nachgeschaltet ist und parallel zu einer der Dioden (D2) ein Kondensator (C) geschaltet ist, dessen mit dem einen Ende (1) der Relaiswicklung (W) verbundene Elelctrode über eine im Ruhezustand durchlässige Diode (D1) mit der zum anderen Ende (2) der Relaiswicklung (W) führenden Zuleitung (L1) verbunden ist. Claim auxiliary circuit for a relay, characterized marked that the leads (L1, L2) leading to the ends of the relay winding (W) from one Rest state can be switched to a working state of reversed polarity and the Relay winding (W) each has a blocking diode (D2, D3) in front of and in the idle state is connected downstream and a capacitor (C) is connected in parallel to one of the diodes (D2) is, whose with one end (1) of the relay winding (W) connected Elelctrode Via a diode (D1) which is permeable in the idle state with the to the other end (2) of the Relay winding (W) leading supply line (L1) is connected.
DE19782802790 1978-01-23 1978-01-23 Auxiliary response circuit for a relay to be controlled via long cable routes Expired DE2802790C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19782802790 DE2802790C2 (en) 1978-01-23 1978-01-23 Auxiliary response circuit for a relay to be controlled via long cable routes
AT803778A AT373720B (en) 1978-01-23 1978-11-09 CONTACT AID FOR A RELAY
CH1257378A CH633906A5 (en) 1978-01-23 1978-12-08 Auxiliary response circuit for a relay which is controlled via supply leads which carry a DC voltage
SE7900432A SE441481B (en) 1978-01-23 1979-01-17 UTLOSNINGSHJELPKOPPLING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782802790 DE2802790C2 (en) 1978-01-23 1978-01-23 Auxiliary response circuit for a relay to be controlled via long cable routes

Publications (2)

Publication Number Publication Date
DE2802790A1 true DE2802790A1 (en) 1979-07-26
DE2802790C2 DE2802790C2 (en) 1982-10-21

Family

ID=6030163

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782802790 Expired DE2802790C2 (en) 1978-01-23 1978-01-23 Auxiliary response circuit for a relay to be controlled via long cable routes

Country Status (4)

Country Link
AT (1) AT373720B (en)
CH (1) CH633906A5 (en)
DE (1) DE2802790C2 (en)
SE (1) SE441481B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436538A4 (en) * 1988-02-16 1992-12-23 "Alternativet" V. Erik Schnipper Security system for an environment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115785B (en) * 1960-08-13 1961-10-26 Standard Elektrik Lorenz Ag Circuit arrangement for activating and holding a relay by means of a capacitor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115785B (en) * 1960-08-13 1961-10-26 Standard Elektrik Lorenz Ag Circuit arrangement for activating and holding a relay by means of a capacitor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-AN L 15097 VIII c/21g *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436538A4 (en) * 1988-02-16 1992-12-23 "Alternativet" V. Erik Schnipper Security system for an environment

Also Published As

Publication number Publication date
SE441481B (en) 1985-10-07
CH633906A5 (en) 1982-12-31
SE7900432L (en) 1979-07-24
DE2802790C2 (en) 1982-10-21
ATA803778A (en) 1983-06-15
AT373720B (en) 1984-02-10

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
D2 Grant after examination
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee