JPS52102657A - Transistor amplifier circuit - Google Patents

Transistor amplifier circuit

Info

Publication number
JPS52102657A
JPS52102657A JP1900276A JP1900276A JPS52102657A JP S52102657 A JPS52102657 A JP S52102657A JP 1900276 A JP1900276 A JP 1900276A JP 1900276 A JP1900276 A JP 1900276A JP S52102657 A JPS52102657 A JP S52102657A
Authority
JP
Japan
Prior art keywords
amplifier circuit
transistor amplifier
voltage
bias voltage
power
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
JP1900276A
Other languages
Japanese (ja)
Other versions
JPS5839404B2 (en
Inventor
Masanori Ienaka
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP51019002A priority Critical patent/JPS5839404B2/en
Priority to DE19772708056 priority patent/DE2708056A1/en
Priority to NL7702008A priority patent/NL7702008A/en
Publication of JPS52102657A publication Critical patent/JPS52102657A/en
Publication of JPS5839404B2 publication Critical patent/JPS5839404B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE: To improve voltage lowering characteristic due to power voltage variation by detecting that the power voltage decreases below the reference voltage and correct bias voltage according to the detected result in the transistor amplifier circuit in which the bias voltage is stabilized.
COPYRIGHT: (C)1977,JPO&Japio
JP51019002A 1976-02-25 1976-02-25 transistor amplifier circuit Expired JPS5839404B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP51019002A JPS5839404B2 (en) 1976-02-25 1976-02-25 transistor amplifier circuit
DE19772708056 DE2708056A1 (en) 1976-02-25 1977-02-24 Transistor amplifier circuit with comparator - uses difference between reference and output to control current sink in bias circuit (NL 29.8.77)
NL7702008A NL7702008A (en) 1976-02-25 1977-02-24 AMPLIFIER CHAIN.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51019002A JPS5839404B2 (en) 1976-02-25 1976-02-25 transistor amplifier circuit

Publications (2)

Publication Number Publication Date
JPS52102657A true JPS52102657A (en) 1977-08-29
JPS5839404B2 JPS5839404B2 (en) 1983-08-30

Family

ID=11987318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51019002A Expired JPS5839404B2 (en) 1976-02-25 1976-02-25 transistor amplifier circuit

Country Status (3)

Country Link
JP (1) JPS5839404B2 (en)
DE (1) DE2708056A1 (en)
NL (1) NL7702008A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890807A (en) * 1981-11-24 1983-05-30 Nec Corp Transistor circuit
JPH03228409A (en) * 1990-02-01 1991-10-09 Nec Corp High frequency power amplifier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930351B2 (en) * 1977-05-20 1984-07-26 株式会社日立製作所 FM stereo demodulation circuit
JPS54122004A (en) * 1978-03-15 1979-09-21 Pioneer Electronic Corp Fm receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099669A (en) * 1973-12-29 1975-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099669A (en) * 1973-12-29 1975-08-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890807A (en) * 1981-11-24 1983-05-30 Nec Corp Transistor circuit
JPH03228409A (en) * 1990-02-01 1991-10-09 Nec Corp High frequency power amplifier

Also Published As

Publication number Publication date
DE2708056A1 (en) 1977-09-01
JPS5839404B2 (en) 1983-08-30
NL7702008A (en) 1977-08-29

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