JPH0282803A - Low voltage amplifier circuit - Google Patents
Low voltage amplifier circuitInfo
- Publication number
- JPH0282803A JPH0282803A JP63235498A JP23549888A JPH0282803A JP H0282803 A JPH0282803 A JP H0282803A JP 63235498 A JP63235498 A JP 63235498A JP 23549888 A JP23549888 A JP 23549888A JP H0282803 A JPH0282803 A JP H0282803A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- voltage division
- resistor
- voltage
- ground
- 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
Links
- 239000003990 capacitor Substances 0.000 abstract 1
Abstract
PURPOSE: To set an output potential through the control of a ratio of a voltage division by feeding back the voltage division of a difference voltage caused by changing an emitter current density of a transistor(TR) being a component of a differential amplifier.
CONSTITUTION: In the case of employing an IC, a DC voltage source 17 is connected between power terminals 3, 7, and the negative power terminal 7 is connected to ground. Moreover, an output terminal 16 is connected to ground via a voltage division circuit comprising resistors 18, 19, the voltage division point is connected to a feedback terminal 16 and both terminals of the resistor 18 are connected to ground via a resistor 20, capacitors 21, 22 and a resistor 23. Furthermore, one terminal of a signal source 24 is connected to ground and the other terminal is connected directly to an input terminal 8. Thus, the output potential of an output signal is set optionally by controlling the resistance ratio (voltage division ratio) of the resistors 18, 19 and a bias voltage source having been required for a conventional circuit is eliminated.
COPYRIGHT: (C)1990,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63235498A JPH0282803A (en) | 1988-09-20 | 1988-09-20 | Low voltage amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63235498A JPH0282803A (en) | 1988-09-20 | 1988-09-20 | Low voltage amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0282803A true JPH0282803A (en) | 1990-03-23 |
Family
ID=16986921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63235498A Pending JPH0282803A (en) | 1988-09-20 | 1988-09-20 | Low voltage amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0282803A (en) |
-
1988
- 1988-09-20 JP JP63235498A patent/JPH0282803A/en active Pending
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