CA997080A - Direct current supply source - Google Patents

Direct current supply source

Info

Publication number
CA997080A
CA997080A CA202,199A CA202199A CA997080A CA 997080 A CA997080 A CA 997080A CA 202199 A CA202199 A CA 202199A CA 997080 A CA997080 A CA 997080A
Authority
CA
Canada
Prior art keywords
direct current
supply source
current supply
source
direct
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
CA202,199A
Other languages
English (en)
Other versions
CA202199S (en
Inventor
Kiyoshi Hasegawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Application granted granted Critical
Publication of CA997080A publication Critical patent/CA997080A/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)
  • Devices For Supply Of Signal Current (AREA)
CA202,199A 1973-06-15 1974-06-11 Direct current supply source Expired CA997080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6694273A JPS5017709A (da) 1973-06-15 1973-06-15

Publications (1)

Publication Number Publication Date
CA997080A true CA997080A (en) 1976-09-14

Family

ID=13330551

Family Applications (1)

Application Number Title Priority Date Filing Date
CA202,199A Expired CA997080A (en) 1973-06-15 1974-06-11 Direct current supply source

Country Status (5)

Country Link
US (1) US3959718A (da)
JP (1) JPS5017709A (da)
AU (1) AU6977074A (da)
CA (1) CA997080A (da)
DE (1) DE2428148A1 (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324176A1 (fr) * 1975-09-12 1977-04-08 Lannionnais Electronique Pont d'alimentation pour ligne telephonique
US4064449A (en) * 1976-08-13 1977-12-20 Gte Automatic Electric Laboratories Incorporated Direct current compensation circuit for transformers
US4241239A (en) * 1978-02-24 1980-12-23 International Telephone And Telegraph Corporation Fluxbucking line transformer with electronic equivalent line terminating impedance
NL7807706A (nl) * 1978-07-19 1980-01-22 Philips Nv Voedingsbrug met d.c.-compensatie voor beide richtin- gen van de voedingstroom.
SE426127B (sv) * 1981-04-24 1982-12-06 Ericsson Telefon Ab L M Likstromsmagnetiserad gaffeltransformator
US4414435A (en) * 1982-04-22 1983-11-08 Northern Telecom Limited Interface circuit with flux cancelling transformer circuit
DE3715552C3 (de) * 1987-05-09 1996-01-11 Kommunikations Elektronik Schaltungsanordnung zur Übertragung nachrichtentechnischer Signale
US4767980A (en) * 1987-10-22 1988-08-30 Reliance Comm/Tec Corporation Inductance multiplier circuit
US4896093A (en) * 1988-08-22 1990-01-23 American Telephone And Telegraph Company Electronic inductor
EP0450884B1 (en) * 1990-04-04 1996-06-12 Seiscor Technologies, Inc. A subscriber line interface circuit providing regulated current
FR2817411B1 (fr) * 2000-11-27 2003-08-15 Aristide Polisois Amplificateur audio avec un transformateur de sortie adapte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872000A (en) * 1958-04-23 1961-07-05 Ass Elect Ind Improvements relating to regulated power supply arrangements
US3119063A (en) * 1961-01-13 1964-01-21 Gen Dynamics Corp Transmission line terminating impedance distinguishing circuit
US3384810A (en) * 1964-03-04 1968-05-21 Northern Electric Co Transformer circuit with direct current flux cancellation
SE306104B (da) * 1966-09-19 1968-11-18 Siemens Ag
US3714548A (en) * 1971-11-17 1973-01-30 Gte Automatic Electric Lab Inc D.c. compensation circuit for miniature transformers

Also Published As

Publication number Publication date
DE2428148A1 (de) 1975-01-09
AU6977074A (en) 1975-12-04
JPS5017709A (da) 1975-02-25
US3959718A (en) 1976-05-25

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