JPS5698914A - Amplifier of low distortion factor - Google Patents
Amplifier of low distortion factorInfo
- Publication number
- JPS5698914A JPS5698914A JP179480A JP179480A JPS5698914A JP S5698914 A JPS5698914 A JP S5698914A JP 179480 A JP179480 A JP 179480A JP 179480 A JP179480 A JP 179480A JP S5698914 A JPS5698914 A JP S5698914A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- trq
- resistor
- transistor
- input voltage
- 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
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To make linear the output voltage to the input voltage, by applying an input to the 1st transistor and forming a negative feedback circuit with the 2nd and 3rd transistors to this transistor.
CONSTITUTION: When a signal is fed to the base of a transistor TRQ11, an output signal is picked up from the collector of TRQ13. The relation between currents i11 and i12 by the constant current sources I11 and I12 is i12≈1/2I11, and since TRs Q12 and Q13 form a negative feedback circuit, the voltage at the connecting point A between the base of TRQ12 and the emitter of TRQ13 is almost equal to the input voltage. Thus, the voltage change in the connecting point A is almost equal to the change in the input voltage, and the current flowing to a resistor R11 is depending on the voltage at the point A. Thus, linearity to the input voltage is kept. Since the current flowing to the resistor R11 is the emitter current of TRQ13, the output voltage across the resistor R12 is also linear.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP179480A JPS5698914A (en) | 1980-01-11 | 1980-01-11 | Amplifier of low distortion factor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP179480A JPS5698914A (en) | 1980-01-11 | 1980-01-11 | Amplifier of low distortion factor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5698914A true JPS5698914A (en) | 1981-08-08 |
Family
ID=11511467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP179480A Pending JPS5698914A (en) | 1980-01-11 | 1980-01-11 | Amplifier of low distortion factor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5698914A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019215968A1 (en) * | 2018-05-10 | 2019-11-14 | ソニーセミコンダクタソリューションズ株式会社 | Amplifier circuit |
-
1980
- 1980-01-11 JP JP179480A patent/JPS5698914A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019215968A1 (en) * | 2018-05-10 | 2019-11-14 | ソニーセミコンダクタソリューションズ株式会社 | Amplifier circuit |
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