FR2381425A2 - Circuit electronique d'injection de sonnerie - Google Patents
Circuit electronique d'injection de sonnerieInfo
- Publication number
- FR2381425A2 FR2381425A2 FR7704774A FR7704774A FR2381425A2 FR 2381425 A2 FR2381425 A2 FR 2381425A2 FR 7704774 A FR7704774 A FR 7704774A FR 7704774 A FR7704774 A FR 7704774A FR 2381425 A2 FR2381425 A2 FR 2381425A2
- Authority
- FR
- France
- Prior art keywords
- triacs
- circuit
- injection circuit
- electronic bell
- control circuit
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Power Conversion In General (AREA)
Abstract
La présente invention concerne un circuit électronique d'injection de sonnerie pour une ligne téléphonique. Il comporte principalement deux triacs dont le circuit de commande comprend des moyens pour délivrer sur leur gâchette un courant redressé toujours supérieur au courant d'amorçage, ce courant de gâchette étant produit à partir de la tension alternative de sonnerie. Application aux centraux téléphoniques électroniques.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7704774A FR2381425A2 (fr) | 1977-02-18 | 1977-02-18 | Circuit electronique d'injection de sonnerie |
GB3908477A GB1552078A (en) | 1976-09-30 | 1977-09-20 | Electronic ringing circuit |
DE19782801372 DE2801372C2 (de) | 1977-02-18 | 1978-01-13 | Schaltungsanordnung zur Anschaltung der Speisegleichspannung und der Rufwechselspannung an Fernsprechteilnehmerleitungen |
BR7801189A BR7801189A (pt) | 1977-02-18 | 1978-02-14 | Circuito eletronico de injecao de toque |
CH175478A CH626487A5 (en) | 1977-02-18 | 1978-02-17 | Circuit for connecting ringing signals to a telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7704774A FR2381425A2 (fr) | 1977-02-18 | 1977-02-18 | Circuit electronique d'injection de sonnerie |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2381425A2 true FR2381425A2 (fr) | 1978-09-15 |
Family
ID=9186953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7704774A Pending FR2381425A2 (fr) | 1976-09-30 | 1977-02-18 | Circuit electronique d'injection de sonnerie |
Country Status (4)
Country | Link |
---|---|
BR (1) | BR7801189A (fr) |
CH (1) | CH626487A5 (fr) |
DE (1) | DE2801372C2 (fr) |
FR (1) | FR2381425A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0466601A1 (fr) * | 1990-07-11 | 1992-01-15 | Constructions Et Etudes En Electronique Et Systemes (C2Es) | Dispositif pour la commutation d'un signal d'appel alternatif cadencé sur un poste téléphonique relié à un autocommutateur |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4331838A (en) * | 1980-04-23 | 1982-05-25 | Tii Industries, Inc. | Telephone ringer isolator circuit arrangement |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2230040A1 (de) * | 1972-06-20 | 1974-01-10 | Siemens Ag | Schaltungsanordnung zur rufstromsteuerung in fernsprechvermittlungsanlagen |
DE2335221A1 (de) * | 1972-07-12 | 1974-01-31 | Int Standard Electric Corp | Schaltungsanordnung zur symmetrischen speisung von rufstromkreisen in nachrichtentechnischen anlagen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH600714A5 (fr) * | 1974-09-24 | 1978-06-30 | Siemens Ag Albis | |
JPS5199408A (fr) * | 1975-02-28 | 1976-09-02 | Hitachi Ltd |
-
1977
- 1977-02-18 FR FR7704774A patent/FR2381425A2/fr active Pending
-
1978
- 1978-01-13 DE DE19782801372 patent/DE2801372C2/de not_active Expired
- 1978-02-14 BR BR7801189A patent/BR7801189A/pt unknown
- 1978-02-17 CH CH175478A patent/CH626487A5/de not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2230040A1 (de) * | 1972-06-20 | 1974-01-10 | Siemens Ag | Schaltungsanordnung zur rufstromsteuerung in fernsprechvermittlungsanlagen |
DE2335221A1 (de) * | 1972-07-12 | 1974-01-31 | Int Standard Electric Corp | Schaltungsanordnung zur symmetrischen speisung von rufstromkreisen in nachrichtentechnischen anlagen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0466601A1 (fr) * | 1990-07-11 | 1992-01-15 | Constructions Et Etudes En Electronique Et Systemes (C2Es) | Dispositif pour la commutation d'un signal d'appel alternatif cadencé sur un poste téléphonique relié à un autocommutateur |
FR2664781A1 (fr) * | 1990-07-11 | 1992-01-17 | C2Es | Dispositif pour la commutation d'un signal d'appel alternatif cadence sur un poste telephonique relie a un autocommutateur. |
Also Published As
Publication number | Publication date |
---|---|
BR7801189A (pt) | 1978-10-31 |
DE2801372C2 (de) | 1986-12-04 |
DE2801372A1 (de) | 1978-08-24 |
CH626487A5 (en) | 1981-11-13 |
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