DE2922693A1 - Schaltungsanordnung fuer integrierte verstaerker der zweidrahttechnik - Google Patents

Schaltungsanordnung fuer integrierte verstaerker der zweidrahttechnik

Info

Publication number
DE2922693A1
DE2922693A1 DE19792922693 DE2922693A DE2922693A1 DE 2922693 A1 DE2922693 A1 DE 2922693A1 DE 19792922693 DE19792922693 DE 19792922693 DE 2922693 A DE2922693 A DE 2922693A DE 2922693 A1 DE2922693 A1 DE 2922693A1
Authority
DE
Germany
Prior art keywords
feedback signal
positive feedback
component
telephony
eliminating
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
DE19792922693
Other languages
English (en)
Other versions
DE2922693C2 (de
Inventor
Bernhard Dipl Ing Gutsche
Volker Dipl Ing Lindemann
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.)
FMN-FERNMELDETECHNIK GMBH NORDHAUSEN, 99734 NORDHA
Original Assignee
NORDHAUSEN VEB FERNMELDEWERK
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 NORDHAUSEN VEB FERNMELDEWERK filed Critical NORDHAUSEN VEB FERNMELDEWERK
Publication of DE2922693A1 publication Critical patent/DE2922693A1/de
Application granted granted Critical
Publication of DE2922693C2 publication Critical patent/DE2922693C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DE19792922693 1978-08-03 1979-06-02 Schaltungsanordnung fuer integrierte verstaerker der zweidrahttechnik Granted DE2922693A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20710578A DD138260B1 (de) 1978-08-03 1978-08-03 Schaltungsanordnung fuer integrierte verstaerker der zweidrahttechnik

Publications (2)

Publication Number Publication Date
DE2922693A1 true DE2922693A1 (de) 1980-02-14
DE2922693C2 DE2922693C2 (de) 1987-03-05

Family

ID=5513890

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792922693 Granted DE2922693A1 (de) 1978-08-03 1979-06-02 Schaltungsanordnung fuer integrierte verstaerker der zweidrahttechnik

Country Status (5)

Country Link
CU (1) CU21084A (de)
DD (1) DD138260B1 (de)
DE (1) DE2922693A1 (de)
HU (1) HU184627B (de)
RO (1) RO80670A (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762924B1 (de) * 1968-09-24 1970-09-03 Siemens Ag Schaltungsanordnung fuer einen Fernsprechmikrofonverstaerker mit verstaerkerausgangsseitiger Speisung
DE2121929A1 (de) * 1971-05-04 1972-11-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungsstabilisierter Transistorverstärker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762924B1 (de) * 1968-09-24 1970-09-03 Siemens Ag Schaltungsanordnung fuer einen Fernsprechmikrofonverstaerker mit verstaerkerausgangsseitiger Speisung
DE2121929A1 (de) * 1971-05-04 1972-11-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungsstabilisierter Transistorverstärker

Also Published As

Publication number Publication date
DE2922693C2 (de) 1987-03-05
HU184627B (en) 1984-09-28
DD138260B1 (de) 1981-10-28
RO80670A (ro) 1982-12-06
CU21084A (es) 1982-03-28
DD138260A1 (de) 1979-10-17

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FMN-FERNMELDETECHNIK GMBH NORDHAUSEN, 99734 NORDHA

8339 Ceased/non-payment of the annual fee