SE433285B - Anordning for strommatning av en abonnentapparat - Google Patents

Anordning for strommatning av en abonnentapparat

Info

Publication number
SE433285B
SE433285B SE8205437A SE8205437A SE433285B SE 433285 B SE433285 B SE 433285B SE 8205437 A SE8205437 A SE 8205437A SE 8205437 A SE8205437 A SE 8205437A SE 433285 B SE433285 B SE 433285B
Authority
SE
Sweden
Prior art keywords
voltage
amplifiers
current
output
signal
Prior art date
Application number
SE8205437A
Other languages
English (en)
Swedish (sv)
Other versions
SE8205437L (sv
SE8205437D0 (sv
Inventor
N J Sundvall
J H Johansson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8205437A priority Critical patent/SE433285B/sv
Publication of SE8205437D0 publication Critical patent/SE8205437D0/xx
Priority to KR1019830004364A priority patent/KR870000078B1/ko
Priority to AU20345/83A priority patent/AU563113B2/en
Priority to PCT/SE1983/000333 priority patent/WO1984001250A1/en
Priority to DE8383903019T priority patent/DE3365314D1/de
Priority to BR8307526A priority patent/BR8307526A/pt
Priority to JP83503073A priority patent/JPS59501651A/ja
Priority to IT22958/83A priority patent/IT1168284B/it
Priority to US06/610,291 priority patent/US4631359A/en
Priority to EP83903019A priority patent/EP0119245B1/en
Publication of SE8205437L publication Critical patent/SE8205437L/
Publication of SE433285B publication Critical patent/SE433285B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
    • 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
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
SE8205437A 1982-09-22 1982-09-22 Anordning for strommatning av en abonnentapparat SE433285B (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE8205437A SE433285B (sv) 1982-09-22 1982-09-22 Anordning for strommatning av en abonnentapparat
KR1019830004364A KR870000078B1 (ko) 1982-09-22 1983-09-16 교환국으로 부터 가입자 전화기에의 전류 공급장치
EP83903019A EP0119245B1 (en) 1982-09-22 1983-09-22 Arrangement for supplying current to a subscriber telephone set
DE8383903019T DE3365314D1 (en) 1982-09-22 1983-09-22 Arrangement for supplying current to a subscriber telephone set
PCT/SE1983/000333 WO1984001250A1 (en) 1982-09-22 1983-09-22 Arrangement for supplying current to a subscriber telephone set
AU20345/83A AU563113B2 (en) 1982-09-22 1983-09-22 Method and apparatus in the current supply of a subscriber set from an exchange
BR8307526A BR8307526A (pt) 1982-09-22 1983-09-22 Conjunto para alimentar corrente a um aparelho telefonico de assinante
JP83503073A JPS59501651A (ja) 1982-09-22 1983-09-22 加入者電話器への電流供給装置
IT22958/83A IT1168284B (it) 1982-09-22 1983-09-22 Metodo ed apparecchiatura per l'alimentazione di corrente di un apparecchio d'abbonato da una centrale
US06/610,291 US4631359A (en) 1982-09-22 1983-09-22 Arrangement for supplying current to a subscriber telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8205437A SE433285B (sv) 1982-09-22 1982-09-22 Anordning for strommatning av en abonnentapparat

Publications (3)

Publication Number Publication Date
SE8205437D0 SE8205437D0 (sv) 1982-09-22
SE8205437L SE8205437L (sv) 1984-03-23
SE433285B true SE433285B (sv) 1984-05-14

Family

ID=20347960

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8205437A SE433285B (sv) 1982-09-22 1982-09-22 Anordning for strommatning av en abonnentapparat

Country Status (10)

Country Link
US (1) US4631359A (ko)
EP (1) EP0119245B1 (ko)
JP (1) JPS59501651A (ko)
KR (1) KR870000078B1 (ko)
AU (1) AU563113B2 (ko)
BR (1) BR8307526A (ko)
DE (1) DE3365314D1 (ko)
IT (1) IT1168284B (ko)
SE (1) SE433285B (ko)
WO (1) WO1984001250A1 (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1233580A (en) * 1984-05-26 1988-03-01 Kenji Takato Battery feed circuit for subscriber line
DE3428106A1 (de) * 1984-07-30 1986-02-06 Standard Elektrik Lorenz Ag, 7000 Stuttgart Teilnehmeranschlussschaltung
IT1214603B (it) * 1985-04-30 1990-01-18 Ates Componenti Elettron Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente.
US4866768A (en) * 1985-06-26 1989-09-12 Siemens Corporate Research & Support, Inc. Station line interface circuit for a telecommunication network
US4727574A (en) * 1985-09-24 1988-02-23 Northern Telecom Limited Subscriber line interface circuit with improved d.c. balance
SE453626B (sv) * 1986-06-27 1988-02-15 Ericsson Telefon Ab L M Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal
SE465547B (sv) * 1990-02-01 1991-09-23 Ericsson Telefon Ab L M Saett och krets foer likstroemsmatning till en telefonlinje
SE465799B (sv) * 1990-03-15 1991-10-28 Ericsson Telefon Ab L M Anordning foer reducerad effektmatning till en abonnentlinje
EP0455894B1 (en) * 1990-05-11 1996-01-17 BELL TELEPHONE MANUFACTURING COMPANY Naamloze Vennootschap Impedance synthesis multiple loop using filtering means
US5511118A (en) * 1991-01-31 1996-04-23 Northern Telecom Limited Method of providing d.c. feed to a telephone line
DE69318551T2 (de) * 1993-07-29 1998-09-10 St Microelectronics Srl Integrierte Teilnehmerleitungsschnittstellenschaltung mit langsamem Polaritätsumschalter
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
SE9400186D0 (sv) * 1994-01-21 1994-01-21 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
US6700975B1 (en) 1996-11-08 2004-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Subscriber line interface circuit
SE507920C2 (sv) * 1996-11-08 1998-07-27 Ericsson Telefon Ab L M Linjekrets
US7957522B2 (en) * 2006-03-06 2011-06-07 Winbond Electronics Corporation Programmable plain old telephone line impedance matching circuits

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7903662A (nl) * 1979-05-10 1980-11-12 Philips Nv Lijncircuit.
NL7903665A (nl) * 1979-05-10 1980-11-12 Philips Nv Aansluitschakeling voor een telefoonlijn.
GB2064915B (en) * 1979-11-29 1984-03-21 Standard Telephones Cables Ltd Telephone line feed circuit
GB2065418B (en) * 1979-12-06 1984-02-15 Standard Telephones Cables Ltd Telephone line feed
US4315207A (en) * 1980-06-20 1982-02-09 Advanced Micro Devices, Inc. Current controlled battery feed circuit
US4387273A (en) * 1980-08-25 1983-06-07 International Telephone And Telegraph Corporation Subscriber line interface circuit with impedance synthesizer
US4317963A (en) * 1980-09-22 1982-03-02 International Telephone And Telegraph Corporation Subscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation control
US4465967A (en) * 1981-01-28 1984-08-14 Hitachi, Ltd. Current supply circuit
US4476350A (en) * 1981-02-17 1984-10-09 Bell Telephone Laboratories, Incorporated Battery feed circuit

Also Published As

Publication number Publication date
JPS59501651A (ja) 1984-09-13
SE8205437L (sv) 1984-03-23
US4631359A (en) 1986-12-23
DE3365314D1 (en) 1986-09-18
EP0119245A1 (en) 1984-09-26
AU563113B2 (en) 1987-06-25
KR840006273A (ko) 1984-11-22
EP0119245B1 (en) 1986-08-13
AU2034583A (en) 1984-04-04
SE8205437D0 (sv) 1982-09-22
WO1984001250A1 (en) 1984-03-29
KR870000078B1 (ko) 1987-02-09
IT1168284B (it) 1987-05-20
IT8322958A0 (it) 1983-09-22
BR8307526A (pt) 1984-08-21

Similar Documents

Publication Publication Date Title
SE433285B (sv) Anordning for strommatning av en abonnentapparat
SE450923B (sv) Anordning for att reglera till en telefonlinje matad strom
EP0157282A2 (en) Electric power supply circuit capable of reducing a loss of electric power
US6097245A (en) Differential output amplifier arrangement and method for tuning the output impedance of a differential output amplifier
SE416694B (sv) Forsterkningsregleringskoppling
EP0415080A2 (en) Device for converting unbalanced analog electric signals into fully-differential signals
SE456535B (sv) Signalstyrkedetektor
EP1445678A1 (en) Voltage to current converter
SE433284B (sv) Anordning for strommatning av en abonnentapparat
EP3748847A1 (en) Disabled mode error reduction for high-voltage bilateral operational amplifier current source
US4217555A (en) Amplifier circuit arrangement with stabilized power-supply current
KR20090034764A (ko) 차동 증폭 회로
SE412670B (sv) Elektrisk forsterkare
JPS5718106A (en) Direct-coupled amplifying circuit
US3943432A (en) Electronic feeding bridge
CN206684601U (zh) 具有独特短路保护的功率输出级
US5578963A (en) Integrated amplifier with flat gain for high and low impedance loads
JP3322145B2 (ja) 電流制御回路
SE515138C2 (sv) Transkonduktor
EP0028229B1 (en) A balanced amplifier output stage
JPS61219208A (ja) 利得可変増幅器
EP0280516A2 (en) Differential amplifier circuit
EP0791245B1 (en) Driving stage
EP0206607A2 (en) Wideband feedback amplifier
DE60037847T2 (de) Differenzausgangsstufe für elektronische Schaltung die Fernspeisung eines Terminals erlaubt

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8205437-0

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8205437-0

Format of ref document f/p: F