FR2369675A1 - Relay circuit providing repetitive signal blocking - has time constant circuit preventing second operation of relay within set time of initial operation - Google Patents
Relay circuit providing repetitive signal blocking - has time constant circuit preventing second operation of relay within set time of initial operationInfo
- Publication number
- FR2369675A1 FR2369675A1 FR7633348A FR7633348A FR2369675A1 FR 2369675 A1 FR2369675 A1 FR 2369675A1 FR 7633348 A FR7633348 A FR 7633348A FR 7633348 A FR7633348 A FR 7633348A FR 2369675 A1 FR2369675 A1 FR 2369675A1
- Authority
- FR
- France
- Prior art keywords
- relay
- circuit
- time constant
- time
- signal blocking
- 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.)
- Withdrawn
Links
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
Landscapes
- Electronic Switches (AREA)
Abstract
The circuit is intended for use with electrical or electronic relays, and provides a block against a repeated signal, i.e. the circuit prevents the relay from being re-energised after operation by very short or very long signal pulses. The circuit is esp. intended for use where step by step instructions are used from such relays to production lines etc. The relay energising coil is connected in series with the collector-emitter path of a transistor (T). The blocking action is provided by the base bias network (R1R2, C) which includes a capacitor (C) maintaining the collector current during its required energised state but having a time constant preventing the transistor from going into conduction until the capacitor has had time to recharge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7633348A FR2369675A1 (en) | 1976-10-29 | 1976-10-29 | Relay circuit providing repetitive signal blocking - has time constant circuit preventing second operation of relay within set time of initial operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7633348A FR2369675A1 (en) | 1976-10-29 | 1976-10-29 | Relay circuit providing repetitive signal blocking - has time constant circuit preventing second operation of relay within set time of initial operation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2369675A1 true FR2369675A1 (en) | 1978-05-26 |
Family
ID=9179562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7633348A Withdrawn FR2369675A1 (en) | 1976-10-29 | 1976-10-29 | Relay circuit providing repetitive signal blocking - has time constant circuit preventing second operation of relay within set time of initial operation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2369675A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0087618A1 (en) * | 1982-02-18 | 1983-09-07 | Siemens Aktiengesellschaft | Energy saving energising circuit for relays in an apparatus with a charging capacitor, in particular an audio frequency remote-control receiver |
FR2895561A1 (en) * | 2005-12-22 | 2007-06-29 | Valeo Electronique Sys Liaison | Electric power supply device for e.g. engine fan of motor vehicle, has unit reducing intensity of current flowing via electromagnetic relay coil and activated when mobile contact is in active position, where coil controls contact movement |
-
1976
- 1976-10-29 FR FR7633348A patent/FR2369675A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0087618A1 (en) * | 1982-02-18 | 1983-09-07 | Siemens Aktiengesellschaft | Energy saving energising circuit for relays in an apparatus with a charging capacitor, in particular an audio frequency remote-control receiver |
FR2895561A1 (en) * | 2005-12-22 | 2007-06-29 | Valeo Electronique Sys Liaison | Electric power supply device for e.g. engine fan of motor vehicle, has unit reducing intensity of current flowing via electromagnetic relay coil and activated when mobile contact is in active position, where coil controls contact movement |
WO2007074302A2 (en) * | 2005-12-22 | 2007-07-05 | Valeo Electronique Et Systemes De Laison | Device for supplying electric power to an electrical member using an electromagnetic relay |
WO2007074302A3 (en) * | 2005-12-22 | 2007-08-23 | Valeo Electronique Sys Liaison | Device for supplying electric power to an electrical member using an electromagnetic relay |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |