ES2004501A6 - Circuito de linea de telecomunicacion y circuito amplificador empleado en el mismo - Google Patents
Circuito de linea de telecomunicacion y circuito amplificador empleado en el mismoInfo
- Publication number
- ES2004501A6 ES2004501A6 ES8603517A ES8603517A ES2004501A6 ES 2004501 A6 ES2004501 A6 ES 2004501A6 ES 8603517 A ES8603517 A ES 8603517A ES 8603517 A ES8603517 A ES 8603517A ES 2004501 A6 ES2004501 A6 ES 2004501A6
- Authority
- ES
- Spain
- Prior art keywords
- circuit
- line
- coupled
- telecommunication line
- amplifier
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/008—Using DC/DC converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers
Abstract
CIRCUITO DE LINEA DE TELECOMUNICACION CON UN CIRCUITO DE SINTESIS DE RESISTENCIA CONECTADO ENTRE LAS RESISTENCIAS DE ALIMENTACION DE LINEA (R0/1) Y LAS ENTRADAS DE ALIMENTACION (VEET) DE AMPLIFICADORES LINEALES (L0A0/L0A1) Y QUE INCLUYE UN CIRCUITO DETECTOR DE CORRIENTE DE LINEA (SENC) QUE ESTA CONECTADO CON UN FILTRO DE CA (R22, R23, C4) QUE ESTA DIRECTAMENTE CONECTADO A LA ENTRADA POSITIVA DE UN AMPLIFICADOR OPERACIONAL (0A6) CUYA ENTRADA NEGATIVA ESTA CONECTADA A UN CIRCUITO DE CONTROL EN DONDE UNA TENSION DE CONTROL SE CONVIERTE EN UNA CORRIENTE QUE SE DERIVA DE DICHA ENTRADA NEGATIVA. LA SALIDA DE ESTE AMPLIFICADOR SE CONECTA CON LOS AMPLIFICADORES DE LINEA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2/60894A BE903910R (nl) | 1983-10-21 | 1985-12-20 | Telecommunicatielijnketen en bijbehorende spanningsomzetter. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2004501A6 true ES2004501A6 (es) | 1989-01-16 |
Family
ID=3865778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8603517A Expired ES2004501A6 (es) | 1985-12-20 | 1986-12-19 | Circuito de linea de telecomunicacion y circuito amplificador empleado en el mismo |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0237656B1 (es) |
AU (2) | AU589718B2 (es) |
ES (1) | ES2004501A6 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5333192A (en) * | 1990-06-26 | 1994-07-26 | Northern Telecom Limited | Line interface circuit |
US5103387A (en) * | 1991-01-31 | 1992-04-07 | Northern Telecom Limited | High voltage converter |
DE69229268T2 (de) * | 1992-04-03 | 1999-09-23 | Northern Telecom Ltd | Schnittstellenschaltung mit spannungsumschaltung für eine fernsprechleitung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4419995A (en) * | 1981-09-18 | 1983-12-13 | Hochmair Ingeborg | Single channel auditory stimulation system |
BE898049A (nl) * | 1983-10-21 | 1984-04-24 | Bell Telephone Mfg | Telecommunicatielijnketen en bijbehorende spanningsomzetter. |
-
1986
- 1986-12-09 AU AU66337/86A patent/AU589718B2/en not_active Ceased
- 1986-12-18 EP EP19860202325 patent/EP0237656B1/en not_active Expired
- 1986-12-19 ES ES8603517A patent/ES2004501A6/es not_active Expired
-
1989
- 1989-08-31 AU AU40883/89A patent/AU613520B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU613520B2 (en) | 1991-08-01 |
EP0237656A3 (en) | 1988-07-27 |
AU6633786A (en) | 1987-06-25 |
AU589718B2 (en) | 1989-10-19 |
EP0237656B1 (en) | 1992-04-08 |
AU4088389A (en) | 1989-12-07 |
EP0237656A2 (en) | 1987-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-12-19 |