JPS57116587A - Reference voltage forming method for closed loop servo control system - Google Patents

Reference voltage forming method for closed loop servo control system

Info

Publication number
JPS57116587A
JPS57116587A JP56001937A JP193781A JPS57116587A JP S57116587 A JPS57116587 A JP S57116587A JP 56001937 A JP56001937 A JP 56001937A JP 193781 A JP193781 A JP 193781A JP S57116587 A JPS57116587 A JP S57116587A
Authority
JP
Japan
Prior art keywords
signal
reference voltage
inverted
peak value
signals
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
JP56001937A
Other languages
Japanese (ja)
Inventor
Hidetake Tanaka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56001937A priority Critical patent/JPS57116587A/en
Publication of JPS57116587A publication Critical patent/JPS57116587A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Position Or Direction (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Control Of Electric Motors In General (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To simplify the structure of a reference voltage forming circuit by sequentially sampling and holding the peak values of a position signal having phase difference pi/2 and a signal inverted from the position signal via a charging and discharging circuit. CONSTITUTION:Two periodical position signals A, B having pi/2 of phase difference responsive to the position of the rotational shaft of a motor are inverted via inversion amplifiers OP1, OP2 to inverted signals -A, -B. A peak value charging capacitor C10 is provided for each signal of A, -A, B, -B. The peak values of the respective signals are sequentially charged in the capacitor C10 through sampling diodes D1-D4, and are discharged from one peak value to next peak value through a discharging resistor R10. A voltage proportional to (A<->+A<+>+B<->+B<+>)/4 is presented in one period average at the output side of an amplifier OP3. This is inputted to a speed command signal generator.
JP56001937A 1981-01-09 1981-01-09 Reference voltage forming method for closed loop servo control system Pending JPS57116587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001937A JPS57116587A (en) 1981-01-09 1981-01-09 Reference voltage forming method for closed loop servo control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001937A JPS57116587A (en) 1981-01-09 1981-01-09 Reference voltage forming method for closed loop servo control system

Publications (1)

Publication Number Publication Date
JPS57116587A true JPS57116587A (en) 1982-07-20

Family

ID=11515516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001937A Pending JPS57116587A (en) 1981-01-09 1981-01-09 Reference voltage forming method for closed loop servo control system

Country Status (1)

Country Link
JP (1) JPS57116587A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344777A (en) * 1976-10-03 1978-04-21 Ricoh Co Ltd Closed loop servo-controlling system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344777A (en) * 1976-10-03 1978-04-21 Ricoh Co Ltd Closed loop servo-controlling system

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