JPS54104267A - Amplifier circuit - Google Patents

Amplifier circuit

Info

Publication number
JPS54104267A
JPS54104267A JP1127078A JP1127078A JPS54104267A JP S54104267 A JPS54104267 A JP S54104267A JP 1127078 A JP1127078 A JP 1127078A JP 1127078 A JP1127078 A JP 1127078A JP S54104267 A JPS54104267 A JP S54104267A
Authority
JP
Japan
Prior art keywords
output
differential amplifier
fett2
gate
fets
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.)
Pending
Application number
JP1127078A
Other languages
Japanese (ja)
Inventor
Toshiki Mori
Haruyasu Yamada
Tsuneo Takezaki
Akira Tada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1127078A priority Critical patent/JPS54104267A/en
Publication of JPS54104267A publication Critical patent/JPS54104267A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To widen the dynamic range of an output signal by forming a feedback loop in an amplifier circuit with a differential amplifier composed of FETs. CONSTITUTION:The output of the 1st differential amplifier composed of a pair of FETs T1 and T2 connected in a differential relation is amplified by the amplifier composed of transistors T3, T4 and T4, outputted to output terminal 107 and also fed back to the gate of FETT2 via resistance R7. The connection point between the gate of FETT2 and resistance R7 is connected to earth terminal 101 via resistance R8 and capacitor C1. The output of output terminal 107 is supplied to the base of TrT6 constituting the 2nd differential amplifier 104, and a voltage one half as high as the power voltage is supplied to the base of TrT7. The AC component of the output of differential amplifier 104 is removed and DC feeding back to the gate of FETT2 is attained.
JP1127078A 1978-02-02 1978-02-02 Amplifier circuit Pending JPS54104267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1127078A JPS54104267A (en) 1978-02-02 1978-02-02 Amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1127078A JPS54104267A (en) 1978-02-02 1978-02-02 Amplifier circuit

Publications (1)

Publication Number Publication Date
JPS54104267A true JPS54104267A (en) 1979-08-16

Family

ID=11773272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1127078A Pending JPS54104267A (en) 1978-02-02 1978-02-02 Amplifier circuit

Country Status (1)

Country Link
JP (1) JPS54104267A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134910A (en) * 1983-01-21 1984-08-02 Toshiba Corp Amplifier circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134910A (en) * 1983-01-21 1984-08-02 Toshiba Corp Amplifier circuit
JPH0363248B2 (en) * 1983-01-21 1991-09-30 Tokyo Shibaura Electric Co

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