GB1236897A - Improvements in or relating to compensating circuits - Google Patents

Improvements in or relating to compensating circuits

Info

Publication number
GB1236897A
GB1236897A GB02139/70A GB1213970A GB1236897A GB 1236897 A GB1236897 A GB 1236897A GB 02139/70 A GB02139/70 A GB 02139/70A GB 1213970 A GB1213970 A GB 1213970A GB 1236897 A GB1236897 A GB 1236897A
Authority
GB
United Kingdom
Prior art keywords
loop
standing
additional winding
current
transistor
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
GB02139/70A
Other languages
English (en)
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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 Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Publication of GB1236897A publication Critical patent/GB1236897A/en
Expired legal-status Critical Current

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
    • H04M19/003—Arrangements for compensation of the DC flux in line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Coils Or Transformers For Communication (AREA)
GB02139/70A 1969-06-18 1970-03-13 Improvements in or relating to compensating circuits Expired GB1236897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1831969 1969-06-18

Publications (1)

Publication Number Publication Date
GB1236897A true GB1236897A (en) 1971-06-23

Family

ID=11152687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02139/70A Expired GB1236897A (en) 1969-06-18 1970-03-13 Improvements in or relating to compensating circuits

Country Status (7)

Country Link
US (1) US3665125A (enExample)
BE (1) BE747612A (enExample)
CH (1) CH512134A (enExample)
DE (1) DE2029750A1 (enExample)
FR (1) FR2053924A5 (enExample)
GB (1) GB1236897A (enExample)
NL (1) NL170078C (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119432A (ja) * 1974-08-09 1976-02-16 Oki Electric Ind Co Ltd Chokuryudenryukyokyukairo
NL167816C (nl) * 1974-11-07 1982-01-18 Philips Nv Hoogfrequente signaaloverdrachtsinrichting.
US3987375A (en) * 1975-03-25 1976-10-19 Stromberg-Carlson Corporation Transmission bridge exhibiting reduced distortion
FR2324176A1 (fr) * 1975-09-12 1977-04-08 Lannionnais Electronique Pont d'alimentation pour ligne telephonique
US4096363A (en) * 1977-05-24 1978-06-20 Bell Telephone Laboratories, Incorporated Transmission network including flux compensation
US4278940A (en) * 1979-04-25 1981-07-14 General Electric Company Means for automatically compensating DC magnetization in a transformer
DE2911517C2 (de) * 1979-03-23 1981-07-09 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlußschaltung mit Erdtasten- und Isolationsfehlerindikation
DE2911584C2 (de) * 1979-03-23 1981-06-11 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlußschaltung mit Erdtastenbetätigungsindikation, hochohmig schaltbarer Speisung und Einrichtung zur Rufsignalerzeugung
FR2462070A1 (fr) * 1979-07-17 1981-02-06 Cit Alcatel Dispositif d'alimentation d'un poste d'abonne
US4255705A (en) * 1979-09-24 1981-03-10 General Electric Company Peak detection and electronic compensation of D. C. saturation magnetization in current transformers used in watt hour meter installations
US4255704A (en) * 1979-10-01 1981-03-10 General Electric Company Zero crossing detection and electronic compensation of D. C. saturation magnetization in current transformers used in watthour meter installations
FR2817411B1 (fr) * 2000-11-27 2003-08-15 Aristide Polisois Amplificateur audio avec un transformateur de sortie adapte

Also Published As

Publication number Publication date
FR2053924A5 (enExample) 1971-04-16
US3665125A (en) 1972-05-23
NL170078B (nl) 1982-04-16
BE747612A (fr) 1970-08-31
NL170078C (nl) 1982-09-16
NL7008903A (enExample) 1970-12-22
DE2029750A1 (de) 1971-05-27
CH512134A (it) 1971-08-31

Similar Documents

Publication Publication Date Title
GB1236897A (en) Improvements in or relating to compensating circuits
GB994178A (en) Inverters
GB1359714A (en) Earth leakage protective arrangements
ES464741A1 (es) Equipo de linea de abonado para central telefonica.
JPS5389306A (en) Dc current supplying circuit
GB924380A (en) Improvements in and relating to semiconductors
GB1001576A (en) A telephone set
GB754655A (en) Improvements in or relating to automatic telecommunication exchange equipment
JPS5335351A (en) Direct-coupled transistor circuit
GB773850A (en) Improvements in or relating to telephone set circuits
GB1090123A (en) A power circuit breaker testing apparatus
GB1001575A (en) A telephone set
GB1078795A (en) Improvements in or relating to party line circuit arrangements, for use in telecommunications systems
JPS5378135A (en) Semiconductor circuit
JPS5273665A (en) Field effect transistor circuit
GB957249A (en) Time division junction circuit for a transmission line
JPS5363956A (en) Power amplifier
JPS5372503A (en) Loop communication system
JPS5329540A (en) Power line carrier communication device
JPS5367335A (en) Integrated circuit formation current matching circuit
GB1001573A (en) A telephone set
JPS5339045A (en) Distortion rate reduction system
JPS52112212A (en) Frequency converter
JPS51117578A (en) Semiconductor equipment
JPS5243966A (en) Voltage transmission circuit