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JPS5592970A - Multiplier circuit - Google Patents

Multiplier circuit

Info

Publication number
JPS5592970A
JPS5592970A JP16507078A JP16507078A JPS5592970A JP S5592970 A JPS5592970 A JP S5592970A JP 16507078 A JP16507078 A JP 16507078A JP 16507078 A JP16507078 A JP 16507078A JP S5592970 A JPS5592970 A JP S5592970A
Authority
JP
Japan
Prior art keywords
trq2n
trq1n
alphai01
emitters
trs
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
JP16507078A
Other languages
Japanese (ja)
Inventor
Hiroki Aizawa
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 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 Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP16507078A priority Critical patent/JPS5592970A/en
Publication of JPS5592970A publication Critical patent/JPS5592970A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To obtain excellent linearity of a logarithm/inverse logarithm conversion part for current transfer by composing a circuit of series-connected pn-junction element lines of two systems, two Darilington-connected transistor groups, and three power supplies. CONSTITUTION:To voltage source VR, diode-connected transistors TrQ11-TrQ1n, and TrQ22-TrQ2n are connected respectively in series and to emitters of TrQ1n and TrQ2n, current sources alphaI01 and (1-alpha)I01 are connected which operate differentially each other. To connection points between emitters of TrQ1n and TrQ2n, and current sources alphaI01 and (1-alpha)I01, 1st-stage bases of Darlinghton-connected Trs Q31-Q3n, and Q41-Q4n providing differential operation are connected respectively. To the common connection point between Trs Q3n and Q4n, current source betaI02 is connected. The collector of TrQ3n serves as an output terminal.the multiplier circuit of this constitution can improve the linearity.
JP16507078A 1978-12-29 1978-12-29 Multiplier circuit Pending JPS5592970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16507078A JPS5592970A (en) 1978-12-29 1978-12-29 Multiplier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16507078A JPS5592970A (en) 1978-12-29 1978-12-29 Multiplier circuit

Publications (1)

Publication Number Publication Date
JPS5592970A true JPS5592970A (en) 1980-07-14

Family

ID=15805289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16507078A Pending JPS5592970A (en) 1978-12-29 1978-12-29 Multiplier circuit

Country Status (1)

Country Link
JP (1) JPS5592970A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114614A (en) * 1981-12-28 1983-07-08 Nec Corp Variable gain amplifier
JPH08315055A (en) * 1995-05-22 1996-11-29 Nec Corp Bipolar multiplier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114614A (en) * 1981-12-28 1983-07-08 Nec Corp Variable gain amplifier
JPH0318363B2 (en) * 1981-12-28 1991-03-12 Nippon Denki Kk
JPH08315055A (en) * 1995-05-22 1996-11-29 Nec Corp Bipolar multiplier

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