JPS5739422A - V-i converter - Google Patents

V-i converter

Info

Publication number
JPS5739422A
JPS5739422A JP11170780A JP11170780A JPS5739422A JP S5739422 A JPS5739422 A JP S5739422A JP 11170780 A JP11170780 A JP 11170780A JP 11170780 A JP11170780 A JP 11170780A JP S5739422 A JPS5739422 A JP S5739422A
Authority
JP
Japan
Prior art keywords
trs
input
diodes
bases
current
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
JP11170780A
Other languages
Japanese (ja)
Inventor
Yasuo Kominami
Tetsuo Sato
Yuichi Okubo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11170780A priority Critical patent/JPS5739422A/en
Publication of JPS5739422A publication Critical patent/JPS5739422A/en
Pending 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
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE:To realize a high accuracy of a converter, by applying input voltage and reference voltage to the bases of an input-side transistor (TR), respectively, in a pair of TRs connected in the inverted Darlington form. CONSTITUTION:Input voltage VIN and reference voltage Vref are applied to the bases of input-side TRs Q1, Q3, respectively, among TRs Q1, Q2 and Q3 and Q4 connected in the inverted Darlington form, and diodes D1, D2 are provided between the base and the emitter of the output side TRs Q2, Q4, respectively. When an emitter area ratio of these diodes and TRs is set, for instance, to 1:10, a current distribution ratio of TRs Q1, Q2 and TRs Q3, Q4 can be set to 1:10, therefore, a base current of the input-side TRs Q1, Q3 can be made very small, and high input impedance. Furthermore, since the greater part of a signal current formed by a resistance R1 flows through the TRQ4, VIN and Vref are transmitted to the resistance R1, and an output current IOUT having a high accuracy is obtained.
JP11170780A 1980-08-15 1980-08-15 V-i converter Pending JPS5739422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11170780A JPS5739422A (en) 1980-08-15 1980-08-15 V-i converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11170780A JPS5739422A (en) 1980-08-15 1980-08-15 V-i converter

Publications (1)

Publication Number Publication Date
JPS5739422A true JPS5739422A (en) 1982-03-04

Family

ID=14568108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11170780A Pending JPS5739422A (en) 1980-08-15 1980-08-15 V-i converter

Country Status (1)

Country Link
JP (1) JPS5739422A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140781A (en) * 1982-02-17 1983-08-20 株式会社日立製作所 Image display
JPS6015681A (en) * 1983-07-06 1985-01-26 三菱電機株式会社 Manufacture of matrix type display unit
JPS63316504A (en) * 1987-06-19 1988-12-23 Fujitsu Ltd Constant current circuit device
US5978056A (en) * 1995-10-15 1999-11-02 Victor Company Of Japan, Ltd Reflection-type display apparatus having antireflection films
US6259424B1 (en) 1998-03-04 2001-07-10 Victor Company Of Japan, Ltd. Display matrix substrate, production method of the same and display matrix circuit
CN102611453A (en) * 2012-04-23 2012-07-25 承德承信自动化工程有限公司 Digital-to-analog converter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140781A (en) * 1982-02-17 1983-08-20 株式会社日立製作所 Image display
JPH0436368B2 (en) * 1982-02-17 1992-06-16 Hitachi Ltd
JPS6015681A (en) * 1983-07-06 1985-01-26 三菱電機株式会社 Manufacture of matrix type display unit
JPS63316504A (en) * 1987-06-19 1988-12-23 Fujitsu Ltd Constant current circuit device
US5978056A (en) * 1995-10-15 1999-11-02 Victor Company Of Japan, Ltd Reflection-type display apparatus having antireflection films
US6259424B1 (en) 1998-03-04 2001-07-10 Victor Company Of Japan, Ltd. Display matrix substrate, production method of the same and display matrix circuit
CN102611453A (en) * 2012-04-23 2012-07-25 承德承信自动化工程有限公司 Digital-to-analog converter

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