ES8601605A1 - Mejoras en dispositivos de apertura controlada de linea telefonica - Google Patents

Mejoras en dispositivos de apertura controlada de linea telefonica

Info

Publication number
ES8601605A1
ES8601605A1 ES537482A ES537482A ES8601605A1 ES 8601605 A1 ES8601605 A1 ES 8601605A1 ES 537482 A ES537482 A ES 537482A ES 537482 A ES537482 A ES 537482A ES 8601605 A1 ES8601605 A1 ES 8601605A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
opening
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
Application number
ES537482A
Other languages
English (en)
Other versions
ES537482A0 (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.)
Nokia Spain SA
Original Assignee
Alcatel Espana 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 Alcatel Espana SA filed Critical Alcatel Espana SA
Priority to ES537482A priority Critical patent/ES8601605A1/es
Publication of ES537482A0 publication Critical patent/ES537482A0/es
Publication of ES8601605A1 publication Critical patent/ES8601605A1/es
Expired legal-status Critical Current

Links

Landscapes

  • Interface Circuits In Exchanges (AREA)

Abstract

CIRCUITO ELECTRONICO DE APLICACION EN APARATOS TELEFONICOS QUE PERMITEN AL USUARIO PROVOCAR UNA APERTURA DEL BUCLE DE LINEA DE DURACION MUY PRECISA. CONSTA DE UN PULSADOR (R) DE TIPO INESTABLE QUE EN REPOSO CORTOCIRCUITA AL DISPOSITIVO DE INMEDIATO; DE UN PUENTE DE DIODOS (D1 D2 D3 D4) PARA ASEGURAR LA ADECUADA POLARIDAD AL CIRCUITO; DE UN TIRISTOR (T2) QUE CONDUCE LA CORRIENTE DE LINEA AL TERMINAR LA APERTURA ELECTRONICA; DE UN CONDENSADOR (C3) QUE AMORTIGUA EL TRANSITORIO INDUCTIVO DE BLOQUEO; DE UN ELEMENTO DE PROTECCION (V1) QUE LIMITA LA TENSION PRODUCIDA POR LA EXTRACORRIENTE DE APERTURA; Y DE UN ZENER Y SU RESISTENCIA DE POLARIZACION QUE DEFINEN LA TENSION CONSTANTE NECESARIA PARA UN TIEMPO DE APERTURA PRECISO.
ES537482A 1984-11-08 1984-11-08 Mejoras en dispositivos de apertura controlada de linea telefonica Expired ES8601605A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES537482A ES8601605A1 (es) 1984-11-08 1984-11-08 Mejoras en dispositivos de apertura controlada de linea telefonica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES537482A ES8601605A1 (es) 1984-11-08 1984-11-08 Mejoras en dispositivos de apertura controlada de linea telefonica

Publications (2)

Publication Number Publication Date
ES537482A0 ES537482A0 (es) 1985-10-16
ES8601605A1 true ES8601605A1 (es) 1985-10-16

Family

ID=8488110

Family Applications (1)

Application Number Title Priority Date Filing Date
ES537482A Expired ES8601605A1 (es) 1984-11-08 1984-11-08 Mejoras en dispositivos de apertura controlada de linea telefonica

Country Status (1)

Country Link
ES (1) ES8601605A1 (es)

Also Published As

Publication number Publication date
ES537482A0 (es) 1985-10-16

Similar Documents

Publication Publication Date Title
GB1514662A (en) Protection device for a subscriber's telephone set
GB1498527A (en) Apparatus for preventing overcurrent or overvoltage
GB1394242A (en) Circuit arrangement including an inductive load circuit which is provided with a switching transistor for switching on and off the load current therein
US5345166A (en) Regulated voltage two-wire detector
SE8003907L (sv) Grenssnitt for elektronisk knappsats for en telefonapparat
ES8601605A1 (es) Mejoras en dispositivos de apertura controlada de linea telefonica
ES468303A1 (es) Un dispositivo que comprende un transformado para tensiones que varian por escalones.
JPS57104325A (en) Ecl circuit
GB922885A (en) Improvements relating to electronic circuit arrangements
JPS57131125A (en) Short-circuit protecting circuit of semiconductor switch
GB993846A (en) Electronic trigger-pulse-generating circuit arrangement
JPS54149564A (en) Delay circuit
GB1517443A (en) Electrical overload protection circuit
GB1004266A (en) Improvements in and relating to transistor oscillator circuits
ES8302988A1 (es) Mejoras en los circuitos de llamada por pulsador con senalizacion por impulsos para aparatos telefonicos.
SE7600255L (sv) Kopplingsanordning for overspenningsskydd vid elektroniska telefonianleggningar
ES248684U (es) Convertidor de tension por triac,perfeccionado
ES8702759A1 (es) Circuito telefonico electronico con senalizacion por impulsos
ATE96584T1 (de) Schaltungsanordnung zur wahlweisen speisung eines verbrauchers mittels einer von zwei speiseschaltungen.
JPS53141569A (en) Protective device for commutation failure of switching element
KR910003888A (ko) 제어회로와 관계있는 전력장치를 포함하는 집적회로의 파워 서플라이에 인가되는 음의 과잉전압에 대한 보호회로
SU634452A1 (ru) Ждужий блокинг-генератор
DE3682134D1 (de) Freilaufschaltung.
GB1422482A (en) Method of and circuit for supplying electric current to a data transmitter
KR900011099A (ko) 스위칭 파워 서플라이의 과전압 보호회로