JPS56116117A - Position controller - Google Patents

Position controller

Info

Publication number
JPS56116117A
JPS56116117A JP2013780A JP2013780A JPS56116117A JP S56116117 A JPS56116117 A JP S56116117A JP 2013780 A JP2013780 A JP 2013780A JP 2013780 A JP2013780 A JP 2013780A JP S56116117 A JPS56116117 A JP S56116117A
Authority
JP
Japan
Prior art keywords
converter
circuit
signal
command
frequency
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
JP2013780A
Other languages
Japanese (ja)
Inventor
Kazuo Ishibashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2013780A priority Critical patent/JPS56116117A/en
Publication of JPS56116117A publication Critical patent/JPS56116117A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Machine Tool Copy Controls (AREA)
  • Numerical Control (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To reduce the number of component parts and thus secure a high performance and high reliability for a position controller, by giving an independent control of two different positions to a control subject by means of a unit of the D/A converter and thus excluding the switch circuit using an analog switch. CONSTITUTION:The voltage having the reference frequency fs and the reference phase 0 deg. is supplied to the position detector 3, and the voltage received a phase shift by the phase angle thetav equal to the rotational angle of the detector 3 is delivered. The command signal sent from the command circuit 4 is supplied to the position error detection circuit 5 in the form of a signal that shows the command position with the phase angle thetac of the frequency fs. The circuit 5 supplies a rectangular wave signal having the frequency fs and the width thetae=thetac-thetav to the error register 6, and then sends the output digital signal to the D/A converter 14 when the strobe signal of the lead wire 101 is ''1''. In the same way, the error register 10 sends an output to the converter 14. As a result, an independent control of two different positions can be given to the control subject 1 by means of a unit of the D/A converter. Thus the switch circuit using an analog switch can be excluded to reduce the number of the component parts. In such way, both a performance and high reliability can be secured.
JP2013780A 1980-02-20 1980-02-20 Position controller Pending JPS56116117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013780A JPS56116117A (en) 1980-02-20 1980-02-20 Position controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013780A JPS56116117A (en) 1980-02-20 1980-02-20 Position controller

Publications (1)

Publication Number Publication Date
JPS56116117A true JPS56116117A (en) 1981-09-11

Family

ID=12018738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013780A Pending JPS56116117A (en) 1980-02-20 1980-02-20 Position controller

Country Status (1)

Country Link
JP (1) JPS56116117A (en)

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