EP0042997B1 - Circuit pour l'alimentation d'un relais électromagnétique - Google Patents
Circuit pour l'alimentation d'un relais électromagnétique Download PDFInfo
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 50
- 230000004907 flux Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H01H47/22—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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375655A3 (fr) * | 1986-02-14 | 1990-10-24 | Cornelius Lungu | Fil d'enroulement et son procédé de fabrication |
Family Cites Families (5)
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 |
-
1980
- 1980-06-27 DE DE3024343A patent/DE3024343C2/de not_active Expired
-
1981
- 1981-06-04 AT AT81104315T patent/ATE7088T1/de not_active IP Right Cessation
- 1981-06-04 EP EP81104315A patent/EP0042997B1/fr not_active Expired
- 1981-06-04 DE DE8181104315T patent/DE3163058D1/de not_active Expired
- 1981-06-12 US US06/273,140 patent/US4369482A/en not_active Expired - Lifetime
- 1981-06-12 ZA ZA813973A patent/ZA813973B/xx unknown
- 1981-06-18 AU AU72004/81A patent/AU539916B2/en not_active Ceased
- 1981-06-26 BR BR8104074A patent/BR8104074A/pt unknown
- 1981-06-26 JP JP56099905A patent/JPS5743333A/ja active Pending
- 1981-06-26 CA CA000380718A patent/CA1148647A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU7200481A (en) | 1982-01-07 |
BR8104074A (pt) | 1982-03-16 |
CA1148647A (fr) | 1983-06-21 |
DE3024343A1 (de) | 1982-01-21 |
ZA813973B (en) | 1982-06-30 |
EP0042997A3 (en) | 1982-05-12 |
DE3163058D1 (en) | 1984-05-17 |
JPS5743333A (en) | 1982-03-11 |
DE3024343C2 (de) | 1986-12-11 |
EP0042997A2 (fr) | 1982-01-06 |
ATE7088T1 (de) | 1984-04-15 |
AU539916B2 (en) | 1984-10-25 |
US4369482A (en) | 1983-01-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MATSUSHITA ELECTRIC WORKS, LTD. Owner name: SDS-ELEKTRO GMBH |
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