JPS5596708A - Isolation amplifier circuit - Google Patents

Isolation amplifier circuit

Info

Publication number
JPS5596708A
JPS5596708A JP395079A JP395079A JPS5596708A JP S5596708 A JPS5596708 A JP S5596708A JP 395079 A JP395079 A JP 395079A JP 395079 A JP395079 A JP 395079A JP S5596708 A JPS5596708 A JP S5596708A
Authority
JP
Japan
Prior art keywords
amplifier
resistance
power source
output end
diode
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
JP395079A
Other languages
Japanese (ja)
Inventor
Osamu Shiraishi
Yoshinori Oikawa
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP395079A priority Critical patent/JPS5596708A/en
Publication of JPS5596708A publication Critical patent/JPS5596708A/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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled

Landscapes

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

Abstract

PURPOSE:To attenuate a power source noise and economize used power, by super- posing DC without using a bias power source for the luminance element of a photo coupler in the isolation amplifier circuit using the photo coupler. CONSTITUTION:The first operational amplifier OP0 and light receiving diode D1 for feedback of photo coupler PC are connected to input terminal IN through resistance R0. Light emission diode D0 is connected to the output end of amplifier OP0 through resistance R1, and power source E2 is applied to diodes D0 and D1. Resistance R3 is connected between the output end and the - end of amplifier OP0 and is grounded by capacitor C0. Power source E3 is applied to light receiving diode D3 for signal transfer, and the second operational amplifier OP2 equipped with resistance R2 is connected to this diode D2, and signals are outputted from output end OUT of amplifier OP2.
JP395079A 1979-01-19 1979-01-19 Isolation amplifier circuit Pending JPS5596708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP395079A JPS5596708A (en) 1979-01-19 1979-01-19 Isolation amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP395079A JPS5596708A (en) 1979-01-19 1979-01-19 Isolation amplifier circuit

Publications (1)

Publication Number Publication Date
JPS5596708A true JPS5596708A (en) 1980-07-23

Family

ID=11571385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP395079A Pending JPS5596708A (en) 1979-01-19 1979-01-19 Isolation amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5596708A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6193016U (en) * 1984-11-22 1986-06-16
EP1837672A1 (en) * 2006-03-24 2007-09-26 ICS Triplex Technology Limited Fault detection method and apparatus
US7476891B2 (en) 2006-03-24 2009-01-13 Ics Triplex Technology, Ltd. Fault detection method and apparatus
US7504975B2 (en) 2006-03-24 2009-03-17 Ics Triplex Technology Limited Method and apparatus for output current control
US7613974B2 (en) 2006-03-24 2009-11-03 Ics Triplex Technology Limited Fault detection method and apparatus
US7688560B2 (en) 2006-03-24 2010-03-30 Ics Triplex Technology Limited Overload protection method
US7729098B2 (en) 2006-03-24 2010-06-01 Ics Triplex Technology Limited Overload protection method
US7747405B2 (en) 2006-03-24 2010-06-29 Ics Triplex Technology Ltd. Line frequency synchronization
US8166362B2 (en) 2006-03-24 2012-04-24 Rockwell Automation Limited Fault detection method and apparatus for analog to digital converter circuits
JP2017188898A (en) * 2016-04-04 2017-10-12 バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. Linear isolation amplifier with output DC voltage cancellation

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6193016U (en) * 1984-11-22 1986-06-16
EP1837672A1 (en) * 2006-03-24 2007-09-26 ICS Triplex Technology Limited Fault detection method and apparatus
US7476891B2 (en) 2006-03-24 2009-01-13 Ics Triplex Technology, Ltd. Fault detection method and apparatus
US7504975B2 (en) 2006-03-24 2009-03-17 Ics Triplex Technology Limited Method and apparatus for output current control
US7613974B2 (en) 2006-03-24 2009-11-03 Ics Triplex Technology Limited Fault detection method and apparatus
US7688560B2 (en) 2006-03-24 2010-03-30 Ics Triplex Technology Limited Overload protection method
US7729098B2 (en) 2006-03-24 2010-06-01 Ics Triplex Technology Limited Overload protection method
US7747405B2 (en) 2006-03-24 2010-06-29 Ics Triplex Technology Ltd. Line frequency synchronization
US8166362B2 (en) 2006-03-24 2012-04-24 Rockwell Automation Limited Fault detection method and apparatus for analog to digital converter circuits
JP2017188898A (en) * 2016-04-04 2017-10-12 バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. Linear isolation amplifier with output DC voltage cancellation
CN107276545A (en) * 2016-04-04 2017-10-20 韦伯斯特生物官能(以色列)有限公司 The linear isolation amplifier eliminated with output DC voltage

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