JPS57154966A - Batterry feeding circuit - Google Patents

Batterry feeding circuit

Info

Publication number
JPS57154966A
JPS57154966A JP2294882A JP2294882A JPS57154966A JP S57154966 A JPS57154966 A JP S57154966A JP 2294882 A JP2294882 A JP 2294882A JP 2294882 A JP2294882 A JP 2294882A JP S57154966 A JPS57154966 A JP S57154966A
Authority
JP
Japan
Prior art keywords
batterry
feeding circuit
feeding
circuit
batterry feeding
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.)
Granted
Application number
JP2294882A
Other languages
Japanese (ja)
Other versions
JPH07118751B2 (en
Inventor
William Aull Denis
Allan Spires Dewayne
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of JPS57154966A publication Critical patent/JPS57154966A/en
Publication of JPH07118751B2 publication Critical patent/JPH07118751B2/en
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
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP2294882A 1981-02-17 1982-02-17 Battery feed circuit Expired - Lifetime JPH07118751B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23468481A 1981-02-17 1981-02-17
US234684 1994-04-28

Publications (2)

Publication Number Publication Date
JPS57154966A true JPS57154966A (en) 1982-09-24
JPH07118751B2 JPH07118751B2 (en) 1995-12-18

Family

ID=22882375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2294882A Expired - Lifetime JPH07118751B2 (en) 1981-02-17 1982-02-17 Battery feed circuit

Country Status (8)

Country Link
JP (1) JPH07118751B2 (en)
CA (1) CA1171989A (en)
DE (1) DE3204843A1 (en)
FR (1) FR2500241A1 (en)
GB (1) GB2093314B (en)
IT (1) IT1149642B (en)
NL (1) NL190348C (en)
SE (1) SE452385B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63314060A (en) * 1987-06-17 1988-12-22 Fujitsu Ltd Power feeding circuit

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419542A (en) * 1982-05-17 1983-12-06 Bell Telephone Laboratories, Incorporated Battery feed circuit
FR2527404B1 (en) * 1982-05-19 1987-10-23 Cit Alcatel ELECTRONIC SUBSCRIBER
SE431704B (en) * 1982-07-06 1984-02-20 Ericsson Telefon Ab L M PROCEDURE FOR POWER SUPPLY OF A SUBSCRIBER DEVICE FROM A TELEPHONE SWITCH
GB2132448B (en) * 1982-12-07 1986-03-12 Standard Telephones Cables Ltd Telephone subscribers' line interface circuit
JPS60141006A (en) * 1983-12-28 1985-07-26 Nec Corp Impedance synthesis circuit
US4571460A (en) * 1984-03-12 1986-02-18 Northern Telecom Limited Active impedance line feed circuit with improved ground fault protection
FR2564678B1 (en) * 1984-05-18 1986-09-12 Thomson Csf Mat Tel SUBSCRIBER CIRCUIT LINK INTERFACE FOR TELEPHONE SWITCH
JPS60253364A (en) * 1984-05-30 1985-12-14 Fujitsu Ltd Internal termination type power feed circuit
US4558272A (en) * 1984-07-05 1985-12-10 At&T Bell Laboratories Current characteristic shaper
US4612417A (en) * 1984-07-27 1986-09-16 At&T Bell Laboratories Electronic battery feed circuit for telephone systems
CA1231480A (en) * 1985-03-15 1988-01-12 John A. Barsellotti Constant current line circuit
IT1197917B (en) * 1986-10-24 1988-12-21 Sgs Microelettronica Spa CONTROL CIRCUIT FOR A VOLTAGE REGULATOR OF A CIRCUIT INTERFACE CONNECTION USER TELEPHONE LINE (SLIC)
FR2642593B1 (en) * 1989-01-31 1991-04-12 Cit Alcatel ELECTRONIC SUBSCRIBER LINE CONNECTION DEVICE
WO2002033842A2 (en) * 2000-10-17 2002-04-25 Centillium Communications, Inc. Transformerless interface for modem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542449A (en) * 1978-09-22 1980-03-25 Hitachi Ltd Current supply circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004109A (en) * 1975-05-09 1977-01-18 Boxall Frank S Hybrid circuit
DE2857168A1 (en) * 1977-11-15 1980-12-04 Gen Electric Co Ltd CURRENT SOURCES
NL7903665A (en) * 1979-05-10 1980-11-12 Philips Nv CONNECTION FOR A TELEPHONE LINE.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542449A (en) * 1978-09-22 1980-03-25 Hitachi Ltd Current supply circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63314060A (en) * 1987-06-17 1988-12-22 Fujitsu Ltd Power feeding circuit

Also Published As

Publication number Publication date
DE3204843A1 (en) 1982-09-09
SE452385B (en) 1987-11-23
NL8200612A (en) 1982-09-16
CA1171989A (en) 1984-07-31
SE8200713L (en) 1982-08-18
IT8219649A0 (en) 1982-02-12
IT1149642B (en) 1986-12-03
NL190348C (en) 1994-01-17
JPH07118751B2 (en) 1995-12-18
FR2500241B1 (en) 1984-12-07
NL190348B (en) 1993-08-16
GB2093314A (en) 1982-08-25
DE3204843C2 (en) 1991-11-21
GB2093314B (en) 1984-11-28
FR2500241A1 (en) 1982-08-20

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