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IT7823635A0 - SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES - Google Patents

SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES

Info

Publication number
IT7823635A0
IT7823635A0 IT7823635A IT2363578A IT7823635A0 IT 7823635 A0 IT7823635 A0 IT 7823635A0 IT 7823635 A IT7823635 A IT 7823635A IT 2363578 A IT2363578 A IT 2363578A IT 7823635 A0 IT7823635 A0 IT 7823635A0
Authority
IT
Italy
Prior art keywords
switching
power supply
constant current
current power
telephone switches
Prior art date
Application number
IT7823635A
Other languages
Italian (it)
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT7823635A priority Critical patent/IT7823635A0/en
Publication of IT7823635A0 publication Critical patent/IT7823635A0/en
Priority to DE19792920792 priority patent/DE2920792A1/en
Priority to IN1289/CAL/79A priority patent/IN152230B/en
Priority to BR7908362A priority patent/BR7908362A/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
IT7823635A 1978-05-22 1978-05-22 SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES IT7823635A0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT7823635A IT7823635A0 (en) 1978-05-22 1978-05-22 SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES
DE19792920792 DE2920792A1 (en) 1978-05-22 1979-05-22 Constant current supply bridge for telephone exchange - has transistor in each current generator, whose collectors are connected cross-wise to their bases
IN1289/CAL/79A IN152230B (en) 1978-05-22 1979-12-10
BR7908362A BR7908362A (en) 1978-05-22 1979-12-20 COIL BODY FOR DRY LAMIN RELAY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7823635A IT7823635A0 (en) 1978-05-22 1978-05-22 SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES

Publications (1)

Publication Number Publication Date
IT7823635A0 true IT7823635A0 (en) 1978-05-22

Family

ID=11208758

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7823635A IT7823635A0 (en) 1978-05-22 1978-05-22 SWITCHING. CONSTANT CURRENT POWER SUPPLY BRIDGE FOR TELEPHONE SWITCHES

Country Status (4)

Country Link
BR (1) BR7908362A (en)
DE (1) DE2920792A1 (en)
IN (1) IN152230B (en)
IT (1) IT7823635A0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157369A (en) * 1984-01-26 1985-08-17 Iwatsu Electric Co Ltd Speech current supply circuit
CA1233580A (en) * 1984-05-26 1988-03-01 Kenji Takato Battery feed circuit for subscriber line

Also Published As

Publication number Publication date
DE2920792A1 (en) 1979-12-13
BR7908362A (en) 1980-08-26
IN152230B (en) 1983-11-26

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