JPS5698914A - Amplifier of low distortion factor - Google Patents

Amplifier of low distortion factor

Info

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
Application number
JP179480A
Other languages
Japanese (ja)
Inventor
Tomosaburo Yoshida
Takashi Sugimoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP179480A priority Critical patent/JPS5698914A/en
Publication of JPS5698914A publication Critical patent/JPS5698914A/en
Pending legal-status Critical Current

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  • 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
JP179480A 1980-01-11 1980-01-11 Amplifier of low distortion factor Pending JPS5698914A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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