EP0042997B1 - Circuit pour l'alimentation d'un relais électromagnétique - Google Patents

Circuit pour l'alimentation d'un relais électromagnétique Download PDF

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Publication number
EP0042997B1
EP0042997B1 EP81104315A EP81104315A EP0042997B1 EP 0042997 B1 EP0042997 B1 EP 0042997B1 EP 81104315 A EP81104315 A EP 81104315A EP 81104315 A EP81104315 A EP 81104315A EP 0042997 B1 EP0042997 B1 EP 0042997B1
Authority
EP
European Patent Office
Prior art keywords
partial coil
circuit arrangement
voltage
coil windings
winding
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
EP81104315A
Other languages
German (de)
English (en)
Other versions
EP0042997A3 (en
EP0042997A2 (fr
Inventor
Heinz Ritter
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.)
SDS Elektro GmbH
Panasonic Electric Works Co Ltd
Original Assignee
Euro Matsushita Electric Works AG
SDS Elektro GmbH
Matsushita Electric Works Ltd
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 Euro Matsushita Electric Works AG, SDS Elektro GmbH, Matsushita Electric Works Ltd filed Critical Euro Matsushita Electric Works AG
Priority to AT81104315T priority Critical patent/ATE7088T1/de
Publication of EP0042997A2 publication Critical patent/EP0042997A2/fr
Publication of EP0042997A3 publication Critical patent/EP0042997A3/de
Application granted granted Critical
Publication of EP0042997B1 publication Critical patent/EP0042997B1/fr
Expired 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

Definitions

  • the invention relates to a circuit arrangement for feeding an electromagnetic relay according to the preamble of claim 1.
  • the control with AC voltage is reserved for relatively large-volume, non-polarized relays, which tolerate coil losses of up to a few watts with a winding volume of a few cubic centimeters.
  • these relays are provided with a short-circuit ring, which extends the fall times in such a way that the relays neither fall off nor flutter, for example in 50 Hz operation.
  • the polarized relays can also be operated on AC voltage if e.g. B. a bridge rectifier is used.
  • the rectifier diodes act like quenching diodes at the same time and thereby extend the relay's fallout time by a factor of five. If you wanted to operate such a relay with a reasonable volume with the excitation power of approx. 150 mW at 220 V AC voltage, which is common for polarized DC voltage relays, coil resistors would be required that are far above what is technically feasible.
  • the invention has for its object to provide a circuit arrangement for supplying an electromagnetic relay with AC voltage, which requires little control energy even at higher AC voltage and at the same time requires little space.
  • the amount of reactance resulting from the capacitance between the partial windings is, in accordance with the frequency of the AC voltage applied, substantially greater than the ohmic resistance of the partial windings, so that the winding resistance is negligible in a first approximation when determining the excitation current required. It follows from this that the flux required to excite the magnet system, based on a predetermined number of turns of a partial winding, is achieved in that the capacitance between the partial windings is made so large that their reactance at the frequency of the AC voltage present allows a sufficient current flow.
  • FIGS. 1 to 3 show the coil partial windings W1, W2 of an electromagnetic relay which is connected to the connections 5, 6 of an AC voltage U via rectifier diodes D1, D2, D3, D4.
  • the two Spu Partial windings W1, W2 are galvanically separated from one another and two-wire, ie wound in one operation and thus in the same winding direction.
  • First diodes D1, D3 with their cathodes are connected to the winding starts 1, 3 lying next to one another and second diodes D2, D4 with their anodes are connected to the winding ends 2, 4 also lying next to one another.
  • connections of the first and second diodes D1, D3 and D2, D4 facing away from the partial windings W1, W2 are each connected to one another and connected to the two connections 5, 6 of the AC voltage U.
  • a voltage-limiting element Z for example a bipolar zener diode, connected between the connections 5, 6 protects the windings W1, W2 and the diodes D1 to D4 against overvoltages.
  • FIG. 4 shows the interconnection of the Zener diode Z with the four diodes D1 to D4 to form a single component.
  • the necessary flow is known for the respective magnet system.
  • the ohmic winding resistance is negligible if the amount is significantly below the reactance resulting from the winding capacitance.
  • the capacitance values for winding wires running next to one another are also known, so that the winding capacitance can be calculated in a good approximation.
  • a modern small relay with a number of turns of 10,000 turns gives a winding capacity of 30 nF. This results in a permanent excitation of the relay with 220 V AC voltage, a self-heating of about 10 ° C, so that this relay can be used as well as modern polarized DC voltage relay.

Landscapes

  • Relay Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Surgical Instruments (AREA)
  • Electronic Switches (AREA)
  • Electromagnets (AREA)
  • Rectifiers (AREA)

Claims (5)

1. Circuit d'alimentation d'un relais électromagnétique qui présente deux bobinages (W1, W2) séparés l'un de l'autre par un diélectrique et formant entre eux une capacité déterminée, dans lequel chaque bobinage est relié sans chute de tension avec l'un seulement des pôles (5, 6) de la source de courant d'excitation et dans lequel le nombre de spires des bobinages (W1, W2) et la capacité résultant de la construction et de la disposition des bobinages sont déterminés de telle manière que le courant circulant dans les deux bobinages par la capacité suffit à l'actionnement du relais, caractérisé par le fait que les deux bobinages (W1, W2) sont réalisés et disposés de manière à provoquer l'excitation permanente du relais par un courant alternatif, que chaque bobinage (W1, W2) est ponté par deux éléments redresseurs disposés l'un derrière l'autre (D1, D2, respectivement D3, D4) et que la liaison des bobinages (W1, W2) avec le pôle correspondant (5, 6) de la source de courant d'excitation s'effectue à chaque fois par le point de liaison entre les deux éléments redresseurs (D1, D2, et respectivement D3, D4).
2. Circuit selon la revendication 1, caractérisé par le fait que les deux bobinages (W1, W2) sont bobinés ensemble.
3. Circuit selon la revendication 1 ou 2, caractérisé par le fait qu'entre les pôles (5, 6) de la source de courant d'excitation est disposé un élément de protection vis-à-vis des surtensions (Z).
4. Circuit selon la revendication 3, caractérisé par le fait que l'élément de protection vis-à-vis des surtensions est une diode Zener (Z) bipolaire.
5. Circuit selon la revendication 3 ou 4, caractérisé par le fait que l'élément de protection vis-à-vis des surtensions (Z) est interconnecté avec les quatre éléments redresseurs (D1 ... D4) de façon à former un ensemble unitaire.
EP81104315A 1980-06-27 1981-06-04 Circuit pour l'alimentation d'un relais électromagnétique Expired EP0042997B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104315T ATE7088T1 (de) 1980-06-27 1981-06-04 Schaltungsanordnung zum speisen eines elektromagnetischen relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3024343 1980-06-27
DE3024343A DE3024343C2 (de) 1980-06-27 1980-06-27 Elektromagnetisches Relais

Publications (3)

Publication Number Publication Date
EP0042997A2 EP0042997A2 (fr) 1982-01-06
EP0042997A3 EP0042997A3 (en) 1982-05-12
EP0042997B1 true EP0042997B1 (fr) 1984-04-11

Family

ID=6105750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104315A Expired EP0042997B1 (fr) 1980-06-27 1981-06-04 Circuit pour l'alimentation d'un relais électromagnétique

Country Status (9)

Country Link
US (1) US4369482A (fr)
EP (1) EP0042997B1 (fr)
JP (1) JPS5743333A (fr)
AT (1) ATE7088T1 (fr)
AU (1) AU539916B2 (fr)
BR (1) BR8104074A (fr)
CA (1) CA1148647A (fr)
DE (2) DE3024343C2 (fr)
ZA (1) ZA813973B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005147A1 (fr) * 1986-02-14 1987-08-27 Cornelius Lungu Composant electrique presentant des proprietes inductives et capacitives

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258646A (en) * 1966-06-28 Fig. i prior art
DE905986C (de) * 1951-12-08 1954-03-08 Deutsche Telephonwerk Kabel Durch Wechselstrom beeinflussbares Relais mit nur einer Wicklung, vorzugsweise fuer Fernsprechanlagen
DE1298626B (de) * 1965-09-01 1969-07-03 Siemens Ag Gleichstromrelais fuer Wechselstrombetrieb
US3582719A (en) * 1969-06-23 1971-06-01 Stearns Electric Corp Forcing circuit for inductors
DE2749732A1 (de) * 1977-11-07 1979-05-10 Sds Elektro Gmbh Elektromagnetisches relais

Also Published As

Publication number Publication date
DE3024343C2 (de) 1986-12-11
US4369482A (en) 1983-01-18
CA1148647A (fr) 1983-06-21
EP0042997A3 (en) 1982-05-12
AU7200481A (en) 1982-01-07
AU539916B2 (en) 1984-10-25
EP0042997A2 (fr) 1982-01-06
DE3163058D1 (en) 1984-05-17
ZA813973B (en) 1982-06-30
ATE7088T1 (de) 1984-04-15
BR8104074A (pt) 1982-03-16
JPS5743333A (en) 1982-03-11
DE3024343A1 (de) 1982-01-21

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