ES244069U - Circuito detector de corriente. - Google Patents

Circuito detector de corriente.

Info

Publication number
ES244069U
ES244069U ES1979244069U ES244069U ES244069U ES 244069 U ES244069 U ES 244069U ES 1979244069 U ES1979244069 U ES 1979244069U ES 244069 U ES244069 U ES 244069U ES 244069 U ES244069 U ES 244069U
Authority
ES
Spain
Prior art keywords
collector
resistor
series
positive
hook
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.)
Granted
Application number
ES1979244069U
Other languages
English (en)
Other versions
ES244069Y (es
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.)
Amper SA
Original Assignee
Amper SA
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 Amper SA filed Critical Amper SA
Priority to ES1979244069U priority Critical patent/ES244069Y/es
Publication of ES244069U publication Critical patent/ES244069U/es
Priority to AR279021D priority patent/AR220796A1/es
Priority to US06/098,194 priority patent/US4310724A/en
Priority to PT70525A priority patent/PT70525A/pt
Priority to EP79200803A priority patent/EP0020822B1/en
Priority to DE7979200803T priority patent/DE2964877D1/de
Priority to AT79200803T priority patent/ATE2593T1/de
Priority to BR8000482A priority patent/BR8000482A/pt
Application granted granted Critical
Publication of ES244069Y publication Critical patent/ES244069Y/es
Priority to MX182465A priority patent/MX149511A/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

Circuito detector de corriente, de aplicación preferente pero no exclusiva en equipos telefónicos, para detectar la condición de "colgado" o "descolgado" de tales equipos, caracterizado esencialmente porque se constituye a partir de dos transformadores iguales, que tienen sus devanados primarios montados en serie y los secundarios en oposición, pero en serie con el circuito en que se desea detectar la corriente, con la particularidad de que los devanados primarios constituyen la carga del colector de un transistor NPN, el cual tiene dicho colector conectado mediante una resistencia a la base de un transistor PNP (con el emisor puesto al positivo de alimentación y el colector al negativo, ésto último a través de una célula resistencia-condensador) mientras que su emisor lo presenta asimismo conectado al negativo por célula resistencia-condensador y su base, polarizada por medio de un divisor resistivo conectado al positivo, la tiene realimentada desde el colector a través de dos condensadores en serie que en el punto de unión de los mismos se conectan también al positivo a través de una resistencia.
ES1979244069U 1979-06-21 1979-06-21 Circuito detector de corriente. Expired ES244069Y (es)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES1979244069U ES244069Y (es) 1979-06-21 1979-06-21 Circuito detector de corriente.
AR279021D AR220796A1 (es) 1979-06-21 1979-11-26 Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos
US06/098,194 US4310724A (en) 1979-06-21 1979-11-27 Current detector circuit
PT70525A PT70525A (fr) 1979-06-21 1979-11-30 Circuit detecteur de courant
EP79200803A EP0020822B1 (en) 1979-06-21 1979-12-24 Current detector circuit
DE7979200803T DE2964877D1 (en) 1979-06-21 1979-12-24 Current detector circuit
AT79200803T ATE2593T1 (de) 1979-06-21 1979-12-24 Stromerkennungsschaltung.
BR8000482A BR8000482A (pt) 1979-06-21 1980-01-25 Circuito detector de corrente
MX182465A MX149511A (es) 1979-06-21 1980-05-22 Mejoras en circuito detector de corriente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1979244069U ES244069Y (es) 1979-06-21 1979-06-21 Circuito detector de corriente.

Publications (2)

Publication Number Publication Date
ES244069U true ES244069U (es) 1979-10-16
ES244069Y ES244069Y (es) 1980-04-01

Family

ID=8403494

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1979244069U Expired ES244069Y (es) 1979-06-21 1979-06-21 Circuito detector de corriente.

Country Status (9)

Country Link
US (1) US4310724A (es)
EP (1) EP0020822B1 (es)
AR (1) AR220796A1 (es)
AT (1) ATE2593T1 (es)
BR (1) BR8000482A (es)
DE (1) DE2964877D1 (es)
ES (1) ES244069Y (es)
MX (1) MX149511A (es)
PT (1) PT70525A (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958371A (en) * 1988-04-19 1990-09-18 Control Data Corporation Method and apparatus for determining when a telephone handset is off-hook
US4845741A (en) * 1988-04-27 1989-07-04 Control Data Corporation Modem ringing supression circuit
EP0967736B1 (en) * 1998-06-26 2006-10-18 Alcatel Filter arrangement
EP0967735B1 (en) * 1998-06-26 2006-10-25 Alcatel Filter arrangement applicable to ADSL splitters
JP2001201521A (ja) * 2000-01-18 2001-07-27 Agilent Technologies Japan Ltd 電流検出装置及びインピーダンス測定器及び電力測定装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420563A (fr) * 1964-10-29 1965-12-10 Lignes Telegraph Telephon Détecteur de courant continu
AU463274B2 (en) * 1971-08-10 1975-07-24 Standard Telephones & Cables Pty. Ltd Circuit arrangement for supervision of une current in telecommunication exchanges
FR2172537A5 (es) * 1972-02-17 1973-09-28 Constr Telephoniques
NL7301486A (es) * 1973-02-01 1974-08-05
GB1504062A (en) * 1976-03-02 1978-03-15 Anaconda Co Loop current detector

Also Published As

Publication number Publication date
MX149511A (es) 1983-11-16
US4310724A (en) 1982-01-12
AR220796A1 (es) 1980-11-28
PT70525A (fr) 1979-12-01
EP0020822B1 (en) 1983-02-16
ATE2593T1 (de) 1983-03-15
EP0020822A1 (en) 1981-01-07
DE2964877D1 (en) 1983-03-24
BR8000482A (pt) 1980-12-30
ES244069Y (es) 1980-04-01

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