FR2492187B1 - - Google Patents

Info

Publication number
FR2492187B1
FR2492187B1 FR8022081A FR8022081A FR2492187B1 FR 2492187 B1 FR2492187 B1 FR 2492187B1 FR 8022081 A FR8022081 A FR 8022081A FR 8022081 A FR8022081 A FR 8022081A FR 2492187 B1 FR2492187 B1 FR 2492187B1
Authority
FR
France
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
FR8022081A
Other languages
French (fr)
Other versions
FR2492187A1 (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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR8022081A priority Critical patent/FR2492187A1/en
Publication of FR2492187A1 publication Critical patent/FR2492187A1/en
Application granted granted Critical
Publication of FR2492187B1 publication Critical patent/FR2492187B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Direct Current Feeding And Distribution (AREA)
FR8022081A 1980-10-15 1980-10-15 Instantaneous voltage supply to telecommunications load - avoids corruption of early data and uses Zener diode with parallel transistor circuits and reservoir capacitor to ensure instant access Granted FR2492187A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8022081A FR2492187A1 (en) 1980-10-15 1980-10-15 Instantaneous voltage supply to telecommunications load - avoids corruption of early data and uses Zener diode with parallel transistor circuits and reservoir capacitor to ensure instant access

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8022081A FR2492187A1 (en) 1980-10-15 1980-10-15 Instantaneous voltage supply to telecommunications load - avoids corruption of early data and uses Zener diode with parallel transistor circuits and reservoir capacitor to ensure instant access

Publications (2)

Publication Number Publication Date
FR2492187A1 FR2492187A1 (en) 1982-04-16
FR2492187B1 true FR2492187B1 (en) 1984-10-05

Family

ID=9246929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8022081A Granted FR2492187A1 (en) 1980-10-15 1980-10-15 Instantaneous voltage supply to telecommunications load - avoids corruption of early data and uses Zener diode with parallel transistor circuits and reservoir capacitor to ensure instant access

Country Status (1)

Country Link
FR (1) FR2492187A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183964B (en) * 1985-11-28 1989-10-11 Stc Plc Telephone power supply

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840250C2 (en) * 1978-09-15 1983-01-20 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for a line-fed loudspeaker station

Also Published As

Publication number Publication date
FR2492187A1 (en) 1982-04-16

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse