JPS5523609A - Two wire type signal conversion amplifier - Google Patents

Two wire type signal conversion amplifier

Info

Publication number
JPS5523609A
JPS5523609A JP8792478A JP8792478A JPS5523609A JP S5523609 A JPS5523609 A JP S5523609A JP 8792478 A JP8792478 A JP 8792478A JP 8792478 A JP8792478 A JP 8792478A JP S5523609 A JPS5523609 A JP S5523609A
Authority
JP
Japan
Prior art keywords
voltage
given
amplifier
resistor
differential
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
JP8792478A
Other languages
Japanese (ja)
Other versions
JPS6155160B2 (en
Inventor
Hiroshi Hirasawa
Takahiro Kojima
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP8792478A priority Critical patent/JPS5523609A/en
Publication of JPS5523609A publication Critical patent/JPS5523609A/en
Publication of JPS6155160B2 publication Critical patent/JPS6155160B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To prevent the interference between the zero shift means and the span adjustment means, by supplying the bias voltage and the feedback respectively as the input of the differential DC amplifier. CONSTITUTION:To the input terminal I' of the differential DC amplifier U2, the voltag EA dividing the Zener voltage of the Zener diode EZ1 with the variable resistor RV1 and the input voltage E1 are given, and the voltage dividing the output voltage E1 of the amplifier U2 with the temperature sensing body R1 and the variable resistor RV2 to the bias voltage E0 is given. Further, the bias voltage E0 is given to the input terminal I' of the differential DC amplifier U1, the output voltage E1 of the amplifier U2 is given to the input terminal I via the resistor R3, the voltage E4 corresponding to the output current of the transistor Q1 is given with the voltage division of the resistor RV3 and further, the output voltage E3 of the constant current source Ic is given via the resistor R4.
JP8792478A 1978-07-19 1978-07-19 Two wire type signal conversion amplifier Granted JPS5523609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8792478A JPS5523609A (en) 1978-07-19 1978-07-19 Two wire type signal conversion amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8792478A JPS5523609A (en) 1978-07-19 1978-07-19 Two wire type signal conversion amplifier

Publications (2)

Publication Number Publication Date
JPS5523609A true JPS5523609A (en) 1980-02-20
JPS6155160B2 JPS6155160B2 (en) 1986-11-26

Family

ID=13928460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8792478A Granted JPS5523609A (en) 1978-07-19 1978-07-19 Two wire type signal conversion amplifier

Country Status (1)

Country Link
JP (1) JPS5523609A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490686A (en) * 1982-07-02 1984-12-25 Mark Telephone Products, Inc. Differential amplifier with common mode rejection means
JPS61501799A (en) * 1984-05-29 1986-08-21 カヴリコ　コ−ポレ−シヨン Voltage-current converter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137256A (en) * 1974-09-25 1976-03-29 Yokogawa Electric Works Ltd SHINGOHEN KANKI
JPS51113745A (en) * 1975-03-31 1976-10-07 Yokogawa Hokushin Electric Corp Two-wire signal modulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137256A (en) * 1974-09-25 1976-03-29 Yokogawa Electric Works Ltd SHINGOHEN KANKI
JPS51113745A (en) * 1975-03-31 1976-10-07 Yokogawa Hokushin Electric Corp Two-wire signal modulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490686A (en) * 1982-07-02 1984-12-25 Mark Telephone Products, Inc. Differential amplifier with common mode rejection means
JPS61501799A (en) * 1984-05-29 1986-08-21 カヴリコ　コ−ポレ−シヨン Voltage-current converter

Also Published As

Publication number Publication date
JPS6155160B2 (en) 1986-11-26

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