JPS5526790A - Emitter follower circuit - Google Patents

Emitter follower circuit

Info

Publication number
JPS5526790A
JPS5526790A JP10039478A JP10039478A JPS5526790A JP S5526790 A JPS5526790 A JP S5526790A JP 10039478 A JP10039478 A JP 10039478A JP 10039478 A JP10039478 A JP 10039478A JP S5526790 A JPS5526790 A JP S5526790A
Authority
JP
Japan
Prior art keywords
emitter
base
collector
follower circuit
emitter follower
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
JP10039478A
Other languages
Japanese (ja)
Other versions
JPS612324B2 (en
Inventor
Hiroshi Gomi
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 JP10039478A priority Critical patent/JPS5526790A/en
Publication of JPS5526790A publication Critical patent/JPS5526790A/en
Publication of JPS612324B2 publication Critical patent/JPS612324B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To obtain an emitter follower circuit with a little variation against a change in temperature by using two circuits constituted by connecting the emitters of NPN transistor Tr and PNPTr together. CONSTITUTION:Input terminal P1 is connected to the base of NPNTrQ1, the emitter of TrQ1 is connected to the emitter of PNPTrQ3, and the base and collector of TrQ3 are connected in common to the earth via resistance R1. The base of TrQ3 is connected to the base of PBPTrQ2, the collector of TrQ2 is grounded, and its emitter is connected to the emitter of NPNTrQ4. The base and collector of TrQ4 are connected in common to power supply T via output terminal P2 and resistance R2 to an emitter follower circuit. In this circuit, selecting values of R1 and R2 to equalizing currents flowing Trs Q1 and Q3, and Q2 and Q4 holds input terminal P1 and output terminal P2 at an equal potential, making it possible to make an input-output temperature coefficient zero.
JP10039478A 1978-08-17 1978-08-17 Emitter follower circuit Granted JPS5526790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10039478A JPS5526790A (en) 1978-08-17 1978-08-17 Emitter follower circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10039478A JPS5526790A (en) 1978-08-17 1978-08-17 Emitter follower circuit

Publications (2)

Publication Number Publication Date
JPS5526790A true JPS5526790A (en) 1980-02-26
JPS612324B2 JPS612324B2 (en) 1986-01-24

Family

ID=14272763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10039478A Granted JPS5526790A (en) 1978-08-17 1978-08-17 Emitter follower circuit

Country Status (1)

Country Link
JP (1) JPS5526790A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121307A (en) * 1981-01-20 1982-07-28 Matsushita Electric Ind Co Ltd Bias circuit
JPS5992618A (en) * 1982-11-19 1984-05-28 Toshiba Corp Level shifting circuit
EP0209987A2 (en) * 1985-07-18 1987-01-28 Comlinear Corporation Unity gain buffer amplifiers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121307A (en) * 1981-01-20 1982-07-28 Matsushita Electric Ind Co Ltd Bias circuit
JPH0325963B2 (en) * 1981-01-20 1991-04-09 Matsushita Electric Ind Co Ltd
JPS5992618A (en) * 1982-11-19 1984-05-28 Toshiba Corp Level shifting circuit
EP0209987A2 (en) * 1985-07-18 1987-01-28 Comlinear Corporation Unity gain buffer amplifiers

Also Published As

Publication number Publication date
JPS612324B2 (en) 1986-01-24

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