JPS5721108A - Dc coupling push-pull amplifying circuit - Google Patents

Dc coupling push-pull amplifying circuit

Info

Publication number
JPS5721108A
JPS5721108A JP9583780A JP9583780A JPS5721108A JP S5721108 A JPS5721108 A JP S5721108A JP 9583780 A JP9583780 A JP 9583780A JP 9583780 A JP9583780 A JP 9583780A JP S5721108 A JPS5721108 A JP S5721108A
Authority
JP
Japan
Prior art keywords
stage
trq
inphase
power supply
amplifying circuit
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
JP9583780A
Other languages
Japanese (ja)
Inventor
Takehachi Segawa
Hiroyasu Yamaguchi
Koichi Noguchi
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 JP9583780A priority Critical patent/JPS5721108A/en
Publication of JPS5721108A publication Critical patent/JPS5721108A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To prevent the Miller effect from being caused, by constituting the first stage and driving stages with an inphase amplifying circuit respectively.
CONSTITUTION: After the 1st differential amplifier 1 being an input stage is in common connection for each emitter of npn transistor TRQ1 and TRQ2, it is connected to a power supply terminal 6 via a constant current source 11. On the other hand, in the 2nd differential amplifier 2 being the driving stage, after each emitter of pnp TRs Q3, Q4 is in common connection, it is connected to a power supply terminal 7 via a resistor R4, and the base of the TRQ4 is connected to a bias power supply 12 for grounding in AC manner. A negative feedback resistor 10 is connected to the base of the TRQ2 from the middle of an output stage 3. Thus, an input signal applied to a signal input terminal 4 is in inphase amplification at the 1st differential amplifying stage 1 and after being inphase amplified at the 2nd differential amplifying state 2, the output stage 3 is driven. Thus, an adverse effect due to the Miller effect can not be caused.
COPYRIGHT: (C)1982,JPO&Japio
JP9583780A 1980-07-14 1980-07-14 Dc coupling push-pull amplifying circuit Pending JPS5721108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9583780A JPS5721108A (en) 1980-07-14 1980-07-14 Dc coupling push-pull amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9583780A JPS5721108A (en) 1980-07-14 1980-07-14 Dc coupling push-pull amplifying circuit

Publications (1)

Publication Number Publication Date
JPS5721108A true JPS5721108A (en) 1982-02-03

Family

ID=14148489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9583780A Pending JPS5721108A (en) 1980-07-14 1980-07-14 Dc coupling push-pull amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5721108A (en)

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