ES2028789T3 - Un circuito electronico para el suministro de energia de corriente continua a los circuitos electronicos de un aparato de telefono de abonado. - Google Patents

Un circuito electronico para el suministro de energia de corriente continua a los circuitos electronicos de un aparato de telefono de abonado.

Info

Publication number
ES2028789T3
ES2028789T3 ES198686308640T ES86308640T ES2028789T3 ES 2028789 T3 ES2028789 T3 ES 2028789T3 ES 198686308640 T ES198686308640 T ES 198686308640T ES 86308640 T ES86308640 T ES 86308640T ES 2028789 T3 ES2028789 T3 ES 2028789T3
Authority
ES
Spain
Prior art keywords
direct current
supply
transistor
telephone device
current energy
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 - Lifetime
Application number
ES198686308640T
Other languages
English (en)
Inventor
Peter Fred Blomley
Edward John Wemyss Whittaker
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of ES2028789T3 publication Critical patent/ES2028789T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Vending Machines For Individual Products (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Filters And Equalizers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Meter Arrangements (AREA)
  • Electric Cable Installation (AREA)
  • Telephone Function (AREA)
  • Inorganic Insulating Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PARA SUMINISTRAR ADECUADAMENTE DE CORRIENTE CONTINUA A UN TELEFONO, YA ESTE EL AURICULAR COLGADO O DESCOLGADO, HAY UN TRANSISTOR (T2) CON SU VIA COLECTORA-EMISORA EN UN HILO DE LINEA Y UN CAPACITOR DE ALMACENAMIENTO (CPSU) DESDE LA ENTRADA HASTA LOS CIRCUITOS DEL TELEFONO. ESTE CAPACITOR ESTA CARGADO Y MANTIENE EL SUMINISTRO DE CORRIENTE CONTINUA CUANDO EL VOLTAJE DE LA LINEA (EN A) BAJA DE UN NIVEL PREFIJADO. LA BASE DE ESTE TRANSISTOR VA CONECTADA AL OTRO HILO DE LINEA A TRAVES DE OTRO TRANSISTOR (T1). LA SALIDA ACUSTICA (VIN) ESTA CONECTADA A LA BASE DEL SEGUNDO TRANSISTOR (T2) A TRAVES DE UN AMPLIFICADOR (A). DE ESTA FORMA, EL SUMINISTRO DE CORRIENTE CONTINUA Y LA SALIDA ACUSTICA ESTAN EN PARALELO.
ES198686308640T 1985-11-28 1986-11-05 Un circuito electronico para el suministro de energia de corriente continua a los circuitos electronicos de un aparato de telefono de abonado. Expired - Lifetime ES2028789T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8529348A GB2183964B (en) 1985-11-28 1985-11-28 Telephone power supply

Publications (1)

Publication Number Publication Date
ES2028789T3 true ES2028789T3 (es) 1992-07-16

Family

ID=10588936

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198686308640T Expired - Lifetime ES2028789T3 (es) 1985-11-28 1986-11-05 Un circuito electronico para el suministro de energia de corriente continua a los circuitos electronicos de un aparato de telefono de abonado.

Country Status (12)

Country Link
US (1) US4748664A (es)
EP (1) EP0225069B1 (es)
JP (1) JPH0795788B2 (es)
AT (1) ATE71483T1 (es)
DE (1) DE3683358D1 (es)
DK (1) DK165614C (es)
ES (1) ES2028789T3 (es)
FI (1) FI85085C (es)
GB (1) GB2183964B (es)
IE (1) IE57578B1 (es)
NZ (1) NZ218248A (es)
PT (1) PT83829B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802945A (nl) * 1988-11-30 1990-06-18 Philips Nv Electronisch telefoontoestel.
DE3905031A1 (de) * 1989-02-18 1990-08-23 Bosch Gmbh Robert Schaltungsanordnung fuer eine fernsprechteilnehmerstation
US5381472A (en) * 1990-08-10 1995-01-10 Tamura Electric Works, Ltd. Power source control apparatus for telephone set
US5216710A (en) * 1991-01-07 1993-06-01 Winbond Electronics Corp. Liquid crystal display driver and power supply
US5327493B1 (en) * 1991-05-02 1997-10-14 Active Voice Inc Device for detecting tones on telephone lines
GB2289187B (en) * 1994-04-26 1999-01-20 Motorola Inc Telephone line interface circuit
GB2290674B (en) * 1994-06-20 1999-04-07 Motorola Inc Telephone apparatus for caller ID
US5790653A (en) * 1995-01-06 1998-08-04 Voicewaves, Inc. Line-powered detection of call progress tones
WO1997020426A1 (en) * 1995-11-29 1997-06-05 Philips Electronics N.V. Terminal for wirebound telecommunication
DE19619610A1 (de) * 1996-05-15 1997-11-20 Bosch Gmbh Robert Fernsprechendgerät
WO1998013999A2 (en) * 1996-09-26 1998-04-02 Philips Electronics N.V. Power supply circuit, telecommunication device and method for multiple dc slope power management
US6041114A (en) 1997-03-27 2000-03-21 Active Voice Corporation Telecommute server

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1031882A (en) * 1976-01-12 1978-05-23 Mevhibe G. Sencer Telephone speech network for electronic sidetone suppression
FR2366755A1 (fr) * 1976-07-27 1978-04-28 Cit Alcatel Telealimentation d'un equipement situe a l'extremite d'une ligne telephonique, cote abonne
US4233474A (en) * 1978-01-10 1980-11-11 Nippon Electric Co., Ltd. Telephone transmitter amplifier
DE2931456C2 (de) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallelregelschaltung
FR2492187A1 (fr) * 1980-10-15 1982-04-16 Trt Telecom Radio Electr Dispositif destine a alimenter instantanement un circuit de charge connecte a ses bornes de sortie des qu'une source d'alimentation est connectee a ses bornes d'entree
GB2126052B (en) * 1982-08-25 1985-12-18 Philips Electronic Associated Telephone circuit
GB2126047A (en) * 1982-08-25 1984-03-14 Philips Electronic Associated Telephone circuit
US4680789A (en) * 1985-02-26 1987-07-14 U.S. Philips Corporation Audio transmission circuit comprising a transmit amplifier in the form of a line voltage stabilizer

Also Published As

Publication number Publication date
NZ218248A (en) 1989-03-29
DK555686D0 (da) 1986-11-20
EP0225069A2 (en) 1987-06-10
PT83829B (pt) 1993-01-29
JPH0795788B2 (ja) 1995-10-11
GB8529348D0 (en) 1986-01-02
FI85085C (fi) 1992-02-25
IE862984L (en) 1987-05-28
FI864553A0 (fi) 1986-11-10
EP0225069B1 (en) 1992-01-08
FI864553A (fi) 1987-05-29
FI85085B (fi) 1991-11-15
IE57578B1 (en) 1992-12-16
DK165614B (da) 1992-12-21
GB2183964A (en) 1987-06-10
DE3683358D1 (de) 1992-02-20
EP0225069A3 (en) 1988-07-20
JPS62131657A (ja) 1987-06-13
DK555686A (da) 1987-05-29
DK165614C (da) 1993-05-03
PT83829A (fr) 1986-12-01
GB2183964B (en) 1989-10-11
US4748664A (en) 1988-05-31
ATE71483T1 (de) 1992-01-15

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