BE868519A - Alimentation pour un circuit de ligne - Google Patents

Alimentation pour un circuit de ligne

Info

Publication number: BE868519A
Authority: BE; Belgium
Prior art keywords: power supply; line circuit; circuit; line; supply
Prior art date: 1978-03-06

Application number

BE188893A

Other languages

English (en)

Original Assignee

Philips Nv

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.)

1978-03-06

Filing date

1978-06-27

Publication date

1978-12-27

1978-06-27 Application filed by Philips Nv filed Critical Philips Nv

1978-12-27 Publication of BE868519A publication Critical patent/BE868519A/fr

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

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Devices For Supply Of Signal Current (AREA)
Interface Circuits In Exchanges (AREA)

BE188893A 1978-03-06 1978-06-27 Alimentation pour un circuit de ligne BE868519A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7802423A NL7802423A (nl)	1978-03-06	1978-03-06	Voedingsinrichting voor een lijnstroomloop.

Publications (1)

Publication Number	Publication Date
BE868519A true BE868519A (fr)	1978-12-27

Family

ID=19830442

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE188893A BE868519A (fr)	1978-03-06	1978-06-27	Alimentation pour un circuit de ligne

Country Status (10)

Country	Link
US (1)	US4192975A (fr)
JP (1)	JPS5945316B2 (fr)
AU (1)	AU512886B2 (fr)
BE (1)	BE868519A (fr)
CA (1)	CA1109171A (fr)
DE (1)	DE2826762C2 (fr)
FR (1)	FR2419627B1 (fr)
GB (1)	GB1557149A (fr)
NL (1)	NL7802423A (fr)
SE (1)	SE436314B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7802422A (nl) *	1978-03-06	1979-09-10	Philips Nv	Inrichting voor het meten van de lijnconditie van een abonneelijnstroomloop met behulp van een meetweerstand.
WO1981000658A1 (fr) *	1979-08-31	1981-03-05	Electro Med Eng Pty Ltd	Affaiblisseur non-reciproque de donnees de lignes telephoniques
GB2064268B (en) *	1979-09-17	1983-10-26	Philips Nv	Electronic signalling device for connection to a signal transmission line
GB2065418B (en) *	1979-12-06	1984-02-15	Standard Telephones Cables Ltd	Telephone line feed
US4354062A (en) *	1980-01-31	1982-10-12	Bell Telephone Laboratories, Incorporated	Communication system signaling circuit
NL8000859A (nl) *	1980-02-12	1981-09-01	Philips Nv	Inrichting voor het toevoeren van een wekspanning aan een abonneelijn.
GB2071461B (en) *	1980-02-14	1984-01-25	Standard Telephones Cables Ltd	Telephone line feed
SE455978B (sv) *	1980-12-19	1988-08-22	Ellemtel Utvecklings Ab	Pulsbreddsmodulerad effektforsterkare for att i beroende av en styrande insignal omvandla en likspenning till en lagfrekvent utsignal
SE426761B (sv) *	1980-12-09	1983-02-07	Ellemtel Utvecklings Ab	Pulsbreddsmodulerad spenningsomvandlare for omvandling av en likspenning till en lagfrekvent och foretredesvis sinusformad vexelspenning
AT384337B (de) *	1982-07-22	1987-10-27	Alcatel Austria Ag	Schnittstellenschaltung mit zweidraht-vierdraht- umsetzung fuer fernsprechvermittlungsanlagen
JPS61120558A (ja) *	1984-11-15	1986-06-07	Nitsuko Ltd	呼出し信号送出回路
JPS61179647A (ja) *	1984-12-29	1986-08-12	Fujitsu Ltd	サ−ビス表示用ランプの点灯方法
AU593951B2 (en) *	1986-10-20	1990-02-22	Fujitsu Limited	An integrated ringing circuit and a ring trip circuit for the same
AT408935B (de) *	1993-08-02	2002-04-25	Schrack Telecom Ag	Vorfeldeinrichtung
US5960075A (en) *	1995-02-16	1999-09-28	Northern Telecom Limited	Switchmode power converters for telephone subscriber line interface circuits
GB2358989B (en) *	2000-02-03	2004-01-21	Lake Electronic Tech	A circuit for developing an ac ringing voltage from a dc voltage supply
KR102855272B1 (ko) *	2023-07-18	2025-09-04	(주)에스에이치팩	실린더 내경 가공장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3376494A (en) *	1965-05-20	1968-04-02	Power Conversion Inc	High frequency controlled rectifier circuit
BE756517A (fr) *	1969-09-23	1971-03-01	Ericsson Telefon Ab L M	Interrupteur pour signaux d'appel de centraux telephoniques automatiques
DE2347696C3 (de) *	1973-09-21	1978-12-21	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Schaltungsanordnung zum Speisen von Teilnehmeranschlußleitungen in Fernsprechvermittlungsanlagen
CA1013080A (en) *	1973-11-13	1977-06-28	Gte Automatic Electric Laboratories Incorporated	Communication system interface circuits
JPS553906B2 (fr) *	1974-07-15	1980-01-28
FR2371840A1 (fr) *	1976-10-04	1978-06-16	Ibm France	Circuit d'interface

1978
- 1978-03-06 NL NL7802423A patent/NL7802423A/xx not_active Application Discontinuation
- 1978-05-25 GB GB22425/78A patent/GB1557149A/en not_active Expired
- 1978-05-31 AU AU36727/78A patent/AU512886B2/en not_active Expired
- 1978-06-05 US US05/912,454 patent/US4192975A/en not_active Expired - Lifetime
- 1978-06-19 DE DE2826762A patent/DE2826762C2/de not_active Expired
- 1978-06-22 CA CA305,985A patent/CA1109171A/fr not_active Expired
- 1978-06-26 FR FR7818966A patent/FR2419627B1/fr not_active Expired
- 1978-06-27 BE BE188893A patent/BE868519A/fr not_active IP Right Cessation
- 1978-06-28 SE SE7807289A patent/SE436314B/sv not_active IP Right Cessation
- 1978-06-30 JP JP53078800A patent/JPS5945316B2/ja not_active Expired

Also Published As

Publication number	Publication date
JPS54118715A (en)	1979-09-14
CA1109171A (fr)	1981-09-15
JPS5945316B2 (ja)	1984-11-05
NL7802423A (nl)	1979-09-10
AU3672778A (en)	1979-12-06
AU512886B2 (en)	1980-10-30
FR2419627A1 (fr)	1979-10-05
FR2419627B1 (fr)	1986-06-20
SE436314B (sv)	1984-11-26
US4192975A (en)	1980-03-11
GB1557149A (en)	1979-12-05
DE2826762C2 (de)	1982-09-30
SE7807289L (sv)	1979-09-07
DE2826762A1 (de)	1979-09-13

Similar Documents

Publication	Publication Date	Title
RO83385A (fr)	1984-05-23	Circuit d'alimentation de la ligne d'abonne avec alimentation de courant
BE868519A (fr)	1978-12-27	Alimentation pour un circuit de ligne
GB2013995B (en)	1982-08-04	Power supply
FR2284976A1 (fr)	1976-04-09	Moyen d'alimentation electrique de puissance pour un magnetron
GB2026921B (en)	1982-06-30	Power supply
JPS54156529A (en)	1979-12-10	Camera power supply circuit
JPS54134471A (en)	1979-10-18	Effective value supply circuit
JPS5532325A (en)	1980-03-07	Power supply for electronic range
JPS5381233A (en)	1978-07-18	Driving power supply circuit for camera
GB2025165B (en)	1983-02-16	Switching type power supply circuits
GB2017359B (en)	1982-10-06	Electronic timepiece power supply arrangement
JPS5558743A (en)	1980-05-01	Power supply device
GB2105929B (en)	1985-09-04	Start-up circuit for a power supply
GB2026738B (en)	1982-10-13	Power supply regulation circuit
JPS54124214A (en)	1979-09-27	Operation stopping circuit for switching power supply
JPS5566273A (en)	1980-05-19	Interruption power supply
GB2035628B (en)	1983-05-05	Power supply
JPS54151444A (en)	1979-11-28	Power supply control circuit for camera
DE3173263D1 (en)	1986-01-30	Supply circuit comprising a pre-ionisation circuit for a flash-lamp
JPS54158644A (en)	1979-12-14	Dc power supply circuit
JPS5568826A (en)	1980-05-23	Power supply circuit
FR2317793A1 (fr)	1977-02-04	Circuit d'alimentation pour televiseurs
JPS5579627A (en)	1980-06-16	Power supply circuit
JPS54151534A (en)	1979-11-28	Soldering machine
JPS5549927A (en)	1980-04-11	Power supply circuit

Legal Events

Date

Code

Title

Description

1992-12-31

RE

Patent lapsed

Owner name: N.V. PHILIPS' GLOEILAMPENFABRIEKEN

Effective date: 19920630