JPS55104110A - Alternating current amplifier - Google Patents

Alternating current amplifier

Info

Publication number
JPS55104110A
JPS55104110A JP1121279A JP1121279A JPS55104110A JP S55104110 A JPS55104110 A JP S55104110A JP 1121279 A JP1121279 A JP 1121279A JP 1121279 A JP1121279 A JP 1121279A JP S55104110 A JPS55104110 A JP S55104110A
Authority
JP
Japan
Prior art keywords
terminal
amplifier
given
channel mosfet
gate
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
JP1121279A
Other languages
Japanese (ja)
Other versions
JPS6247368B2 (en
Inventor
Mineo Suyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1121279A priority Critical patent/JPS55104110A/en
Publication of JPS55104110A publication Critical patent/JPS55104110A/en
Publication of JPS6247368B2 publication Critical patent/JPS6247368B2/ja
Granted 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
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/16—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices

Landscapes

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

Abstract

PURPOSE:To avoid useless power consumption, by providing the means opening the feedback resistor of C-MOS type AC amplifier and the means fixing the input terminal at high or low level potential. CONSTITUTION:The p channel MOSFET Q3 and the n channel MOSFET Q4 are connected parallelly from the output terminal B of C-MOS type FETs Q1, Q2 to the input terminal A to form the feedback resistor and AC amplifier. To the gate of FETs Q3, Q4, mutually opposite phase signal is given from the control terminal C and the inverter I. The terminal C is connected to the gate of p channel MOSFET Q5 in which the drain is connected to the terminal A and the source is at high potential. When high level signal is given to the terminal C, Q5 is OFF and Q3, Q4 are conductive and operated as a normal AC amplifier, and when a low level signal is given, Q3, Q4 are both OFF and Q5 is operated to fix the terminal A at a high level. Accordingly, Q1 is interrupted, no power supply current flows, and when it is not used as an amplifier, useless power consumption can be avoided without interrupting the power supply.
JP1121279A 1979-02-02 1979-02-02 Alternating current amplifier Granted JPS55104110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1121279A JPS55104110A (en) 1979-02-02 1979-02-02 Alternating current amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1121279A JPS55104110A (en) 1979-02-02 1979-02-02 Alternating current amplifier

Publications (2)

Publication Number Publication Date
JPS55104110A true JPS55104110A (en) 1980-08-09
JPS6247368B2 JPS6247368B2 (en) 1987-10-07

Family

ID=11771678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1121279A Granted JPS55104110A (en) 1979-02-02 1979-02-02 Alternating current amplifier

Country Status (1)

Country Link
JP (1) JPS55104110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019057844A (en) * 2017-09-21 2019-04-11 新日本無線株式会社 Clock signal amplification circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54114160A (en) * 1978-02-27 1979-09-06 Matsushita Electric Ind Co Ltd Cmos analog amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54114160A (en) * 1978-02-27 1979-09-06 Matsushita Electric Ind Co Ltd Cmos analog amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019057844A (en) * 2017-09-21 2019-04-11 新日本無線株式会社 Clock signal amplification circuit

Also Published As

Publication number Publication date
JPS6247368B2 (en) 1987-10-07

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