DE3730501A1 - Niederfrequenzverstaerker - Google Patents

Niederfrequenzverstaerker

Info

Publication number
DE3730501A1
DE3730501A1 DE19873730501 DE3730501A DE3730501A1 DE 3730501 A1 DE3730501 A1 DE 3730501A1 DE 19873730501 DE19873730501 DE 19873730501 DE 3730501 A DE3730501 A DE 3730501A DE 3730501 A1 DE3730501 A1 DE 3730501A1
Authority
DE
Germany
Prior art keywords
transistor
base
collector
emitter
coupling capacitor
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
DE19873730501
Other languages
German (de)
English (en)
Other versions
DE3730501C2 (enrdf_load_stackoverflow
Inventor
Hermann Abele
Kurt Dipl Ing Eberhardt
Gerhard Dipl Phys Forster
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.)
Atmel Germany GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19873730501 priority Critical patent/DE3730501A1/de
Publication of DE3730501A1 publication Critical patent/DE3730501A1/de
Application granted granted Critical
Publication of DE3730501C2 publication Critical patent/DE3730501C2/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
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE19873730501 1987-09-11 1987-09-11 Niederfrequenzverstaerker Granted DE3730501A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873730501 DE3730501A1 (de) 1987-09-11 1987-09-11 Niederfrequenzverstaerker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873730501 DE3730501A1 (de) 1987-09-11 1987-09-11 Niederfrequenzverstaerker

Publications (2)

Publication Number Publication Date
DE3730501A1 true DE3730501A1 (de) 1989-03-23
DE3730501C2 DE3730501C2 (enrdf_load_stackoverflow) 1989-06-29

Family

ID=6335763

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873730501 Granted DE3730501A1 (de) 1987-09-11 1987-09-11 Niederfrequenzverstaerker

Country Status (1)

Country Link
DE (1) DE3730501A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357214A (en) * 1993-06-03 1994-10-18 Apple Computer, Inc. Methods and apparatus for microphone preamplification

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Electronics 3/1978, S.117 *
TIETZE/SCHENK: Halbleiter-Schaltungstechnik, 2.Aufl., Springer Verl. Berlin Heidelberg, New York, S.139 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357214A (en) * 1993-06-03 1994-10-18 Apple Computer, Inc. Methods and apparatus for microphone preamplification

Also Published As

Publication number Publication date
DE3730501C2 (enrdf_load_stackoverflow) 1989-06-29

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TEMIC TELEFUNKEN MICROELECTRONIC GMBH, 74072 HEILB

8320 Willingness to grant licenses declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: TEMIC SEMICONDUCTOR GMBH, 74072 HEILBRONN, DE

8327 Change in the person/name/address of the patent owner

Owner name: ATMEL GERMANY GMBH, 74072 HEILBRONN, DE

8339 Ceased/non-payment of the annual fee