JPS5472651A - Operation unit - Google Patents

Operation unit

Info

Publication number
JPS5472651A
JPS5472651A JP13963877A JP13963877A JPS5472651A JP S5472651 A JPS5472651 A JP S5472651A JP 13963877 A JP13963877 A JP 13963877A JP 13963877 A JP13963877 A JP 13963877A JP S5472651 A JPS5472651 A JP S5472651A
Authority
JP
Japan
Prior art keywords
conversion
signal
comparator
converter
set value
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
JP13963877A
Other languages
Japanese (ja)
Other versions
JPS5637584B2 (en
Inventor
Osamu Tada
Akira Sumi
Fusatoshi Kataoka
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 JP13963877A priority Critical patent/JPS5472651A/en
Publication of JPS5472651A publication Critical patent/JPS5472651A/en
Publication of JPS5637584B2 publication Critical patent/JPS5637584B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Feedback Control In General (AREA)
  • Control By Computers (AREA)

Abstract

PURPOSE:To enable to perform A/D conversion of high sensitivity at all times independently of the smplitude of the set value for the operation constant signal and accordingly, the operation of high precision, by constituting that the signal dividing the output of the D/A converter is fed to the other input terminal of the comparator. CONSTITUTION:The operation constant Kp is set by giving the output eo of the D/A converter 4 to the resistance dividing voltage means 5 and feeding the voltage dividing signal eo/Ko to other input terminal of the comparator 20. Accordingly, in performng A/D conversion for the operated signal e1, the A/D conversion loop constituted with the comparator 20, processor 3, converter 4 and means 5 performs the A/D conversion so that eo=Ei Kp can be obtained finally. The characteristic curve representing the relation between ei and eo moves as the arrow a when the set value of Kp is increased, and this is similar to the input and output performance when the feedback rate is changed in a feedback amplifier. For example, taking the resolution of A/D conversion as 10-bit, the A/D conversion of high resolution such as 0.1% can be realized independencly of the set value of Kp.
JP13963877A 1977-11-21 1977-11-21 Operation unit Granted JPS5472651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13963877A JPS5472651A (en) 1977-11-21 1977-11-21 Operation unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13963877A JPS5472651A (en) 1977-11-21 1977-11-21 Operation unit

Publications (2)

Publication Number Publication Date
JPS5472651A true JPS5472651A (en) 1979-06-11
JPS5637584B2 JPS5637584B2 (en) 1981-09-01

Family

ID=15249931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13963877A Granted JPS5472651A (en) 1977-11-21 1977-11-21 Operation unit

Country Status (1)

Country Link
JP (1) JPS5472651A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224003A (en) * 1985-03-29 1986-10-04 Mitsubishi Electric Corp Direct digital controlling device
JPS62271002A (en) * 1987-03-20 1987-11-25 Japan Electronic Control Syst Co Ltd Electronic controller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04360Y2 (en) * 1984-12-27 1992-01-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224003A (en) * 1985-03-29 1986-10-04 Mitsubishi Electric Corp Direct digital controlling device
JPS62271002A (en) * 1987-03-20 1987-11-25 Japan Electronic Control Syst Co Ltd Electronic controller

Also Published As

Publication number Publication date
JPS5637584B2 (en) 1981-09-01

Similar Documents

Publication Publication Date Title
JPS5425613A (en) Analog multiplexer
JPS51116647A (en) Variable impedance circuit
JPS55136708A (en) Voltage current conversion circuit
JPS5472651A (en) Operation unit
JPS5359352A (en) Comparator
JPS558656A (en) Sample hold circuit
JPS5625827A (en) Coding unit
JPS5679509A (en) Automatic gain control circuit
JPS5394163A (en) Negative feedback power amplifier
JPS54157060A (en) Logarithm converter
JPS5776918A (en) A/d converter
JPS53142148A (en) Anti-logarithm conversion circuit
JPS53107650A (en) Switching regulator having two power source output
JPS5523606A (en) Analog digital converter
JPS5341963A (en) Negative feedback amplifier circuit
JPS53142856A (en) Comparator
JPS5470752A (en) Output voltage limiting circuit for operational amplifier
JPS5525259A (en) Cyclic filter device
JPS5337285A (en) Servo mechanism control device
JPS5341275A (en) Power detector
JPS55166049A (en) Pulse rate circuit
JPS544058A (en) Analog to digital converter of integration type
JPS56114414A (en) Amplifying circuit
JPS53147186A (en) On off controller
JPS55119777A (en) Function generating circuit