JPS56165409A - Voltage-to-current converting circuit - Google Patents

Voltage-to-current converting circuit

Info

Publication number
JPS56165409A
JPS56165409A JP6976180A JP6976180A JPS56165409A JP S56165409 A JPS56165409 A JP S56165409A JP 6976180 A JP6976180 A JP 6976180A JP 6976180 A JP6976180 A JP 6976180A JP S56165409 A JPS56165409 A JP S56165409A
Authority
JP
Japan
Prior art keywords
voltage
current
amplifier
input
resistance
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
JP6976180A
Other languages
Japanese (ja)
Other versions
JPS6059765B2 (en
Inventor
Isamu Ueki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55069761A priority Critical patent/JPS6059765B2/en
Publication of JPS56165409A publication Critical patent/JPS56165409A/en
Publication of JPS6059765B2 publication Critical patent/JPS6059765B2/en
Expired 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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only

Landscapes

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

Abstract

PURPOSE:To ensure a linear conversion between the voltage and the current, by inserting a current Miller circuit into a feedback circuit of a differential input operational amplifier and then flowing the current having no relation with the voltage between the base and the emitter of a transistor to an input resistance. CONSTITUTION:A negative input terminal of a differential input operational amplifier (amplifier) 6 is connected to an input terminal IN and a current Miller 7 via a resistance 5 of resistance value R, and the earth potential is connected to a positive input terminal. The output terminal of the amplifier 6 is connected to the other end of the Miller 7 to form a feedback circuit of the amplifier 6. With application of the positive signal voltage V to the terminal IN, a feedback is applied to set the voltage between two input terminals at 0. Thus the output of the amplifier 6 becomes negative to the earth potential by the voltage VBE between the base and the emitter of a transistor (TR) 8. Accordingly the current of flowing to the resistance 5 becomes V/R, and the samd current V/R flows to the TRs 8 and 9. As a result, an accurate voltage-current conversion is possible to flow the current proportional to the input voltage V to an output terminal OUT.
JP55069761A 1980-05-26 1980-05-26 Voltage/current conversion circuit Expired JPS6059765B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55069761A JPS6059765B2 (en) 1980-05-26 1980-05-26 Voltage/current conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55069761A JPS6059765B2 (en) 1980-05-26 1980-05-26 Voltage/current conversion circuit

Publications (2)

Publication Number Publication Date
JPS56165409A true JPS56165409A (en) 1981-12-19
JPS6059765B2 JPS6059765B2 (en) 1985-12-26

Family

ID=13412099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55069761A Expired JPS6059765B2 (en) 1980-05-26 1980-05-26 Voltage/current conversion circuit

Country Status (1)

Country Link
JP (1) JPS6059765B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145314A (en) * 1984-08-09 1986-03-05 Nec Corp Absolute value voltage-to-current converting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145314A (en) * 1984-08-09 1986-03-05 Nec Corp Absolute value voltage-to-current converting circuit

Also Published As

Publication number Publication date
JPS6059765B2 (en) 1985-12-26

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