JPS5753115A - Differential amplifying circuit - Google Patents

Differential amplifying circuit

Info

Publication number
JPS5753115A
JPS5753115A JP55128189A JP12818980A JPS5753115A JP S5753115 A JPS5753115 A JP S5753115A JP 55128189 A JP55128189 A JP 55128189A JP 12818980 A JP12818980 A JP 12818980A JP S5753115 A JPS5753115 A JP S5753115A
Authority
JP
Japan
Prior art keywords
current
output
circuit
diode
constant
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
JP55128189A
Other languages
Japanese (ja)
Other versions
JPS6351407B2 (en
Inventor
Kazuaki Nakayama
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP55128189A priority Critical patent/JPS5753115A/en
Publication of JPS5753115A publication Critical patent/JPS5753115A/en
Publication of JPS6351407B2 publication Critical patent/JPS6351407B2/ja
Granted legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To realize a circuit which is strong against fluctiation of a powe source voltage and has less distortion, by providing a diode in one collector of a pair of differential transistors to constitute a current Miller circuit and by obtaining the output from this current Miller circuit.
CONSTITUTION: An output current in a constant ratio to collector currents of transistors TRs Q1 and Q2 of a differential pair is generated as the output of a current Miller circuit consisting of resistances R1 and R2, a diode D1, and a TR Q4. A TR Q7 which supplies a constant current to this differential pair circuit is provided to eliminate the influence due to fluctuation of the power source voltage, and current Miller circuit consisting of resistances R3 and R4, a diode D2, and a TR Q5 is provided to set the current to the output TR Q4 to a value which not only is in a constant ratio to the current of the constant current source Q7 but also makes the output current maximum for a load.
COPYRIGHT: (C)1982,JPO&Japio
JP55128189A 1980-09-16 1980-09-16 Differential amplifying circuit Granted JPS5753115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55128189A JPS5753115A (en) 1980-09-16 1980-09-16 Differential amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55128189A JPS5753115A (en) 1980-09-16 1980-09-16 Differential amplifying circuit

Publications (2)

Publication Number Publication Date
JPS5753115A true JPS5753115A (en) 1982-03-30
JPS6351407B2 JPS6351407B2 (en) 1988-10-13

Family

ID=14978639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55128189A Granted JPS5753115A (en) 1980-09-16 1980-09-16 Differential amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5753115A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018155A (en) * 1973-06-20 1975-02-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018155A (en) * 1973-06-20 1975-02-26

Also Published As

Publication number Publication date
JPS6351407B2 (en) 1988-10-13

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