JPS55104110A - Alternating current amplifier - Google Patents
Alternating current amplifierInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54114160A (en) * | 1978-02-27 | 1979-09-06 | Matsushita Electric Ind Co Ltd | Cmos analog amplifier |
-
1979
- 1979-02-02 JP JP1121279A patent/JPS55104110A/en active Granted
Patent Citations (1)
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)
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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