FR1172721A - Circuit de régulation à transistor - Google Patents

Circuit de régulation à transistor

Info

Publication number
FR1172721A
FR1172721A FR1172721DA FR1172721A FR 1172721 A FR1172721 A FR 1172721A FR 1172721D A FR1172721D A FR 1172721DA FR 1172721 A FR1172721 A FR 1172721A
Authority
FR
France
Prior art keywords
regulation circuit
transistor
transistor regulation
circuit
regulation
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
Other languages
English (en)
French (fr)
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
Application granted granted Critical
Publication of FR1172721A publication Critical patent/FR1172721A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Amplifiers (AREA)
FR1172721D 1956-03-29 1957-02-28 Circuit de régulation à transistor Expired FR1172721A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1172721XA 1956-03-29 1956-03-29

Publications (1)

Publication Number Publication Date
FR1172721A true FR1172721A (fr) 1959-02-13

Family

ID=22371938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1172721D Expired FR1172721A (fr) 1956-03-29 1957-02-28 Circuit de régulation à transistor

Country Status (4)

Country Link
BE (1) BE555288A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1096424B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1172721A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL100978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE439637A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1939-06-10
BE485032A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1947-12-22
DE887956C (de) * 1950-12-27 1953-08-27 Western Electric Co Schaltungsanordnung zur Regelung des UEbertragungspegels fuer Fernsprechteilnehmerstellen
DE862917C (de) * 1951-07-12 1953-01-15 Siemens Ag Fernsprechstation mit Kohlemikrofon und Speisung vom Amt

Also Published As

Publication number Publication date
BE555288A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL100978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL215808A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE1096424B (de) 1961-01-05

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