HU184627B - Circuit arrangement for integrated amplifiers of two-wire technology - Google Patents

Circuit arrangement for integrated amplifiers of two-wire technology Download PDF

Info

Publication number
HU184627B
HU184627B HUFE001050A HU184627B HU 184627 B HU184627 B HU 184627B HU FE001050 A HUFE001050 A HU FE001050A HU 184627 B HU184627 B HU 184627B
Authority
HU
Hungary
Prior art keywords
resistor
mirror circuit
output
circuit unit
amplifier
Prior art date
Application number
Other languages
English (en)
Hungarian (hu)
Inventor
Bernhard Gutsche
Volker Lindemann
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 HU184627B publication Critical patent/HU184627B/hu

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)
HUFE001050 1978-08-03 1979-08-02 Circuit arrangement for integrated amplifiers of two-wire technology HU184627B (en)

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 (1)

Publication Number Publication Date
HU184627B true HU184627B (en) 1984-09-28

Family

ID=5513890

Family Applications (1)

Application Number Title Priority Date Filing Date
HUFE001050 HU184627B (en) 1978-08-03 1979-08-02 Circuit arrangement for integrated amplifiers of two-wire technology

Country Status (5)

Country Link
CU (1) CU21084A (de)
DD (1) DD138260B1 (de)
DE (1) DE2922693C2 (de)
HU (1) HU184627B (de)
RO (1) RO80670A (de)

Family Cites Families (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
DE2121929C3 (de) * 1971-05-04 1980-09-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungsstabilisierter Transistorverstärker

Also Published As

Publication number Publication date
RO80670A (ro) 1982-12-06
DE2922693A1 (de) 1980-02-14
DE2922693C2 (de) 1987-03-05
DD138260B1 (de) 1981-10-28
CU21084A (es) 1982-03-28
DD138260A1 (de) 1979-10-17

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee