JPS57187717A - Digital speed controller - Google Patents

Digital speed controller

Info

Publication number
JPS57187717A
JPS57187717A JP56070826A JP7082681A JPS57187717A JP S57187717 A JPS57187717 A JP S57187717A JP 56070826 A JP56070826 A JP 56070826A JP 7082681 A JP7082681 A JP 7082681A JP S57187717 A JPS57187717 A JP S57187717A
Authority
JP
Japan
Prior art keywords
pulse
microcomputer
generates
speed
output
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
JP56070826A
Other languages
Japanese (ja)
Other versions
JPH0344506B2 (en
Inventor
Tsutomu Omae
Toshihiko Matsuda
Makoto Tachikawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56070826A priority Critical patent/JPS57187717A/en
Publication of JPS57187717A publication Critical patent/JPS57187717A/en
Publication of JPH0344506B2 publication Critical patent/JPH0344506B2/ja
Granted 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/22—Controlling the speed digitally using a reference oscillator, a speed proportional pulse rate feedback and a digital comparator

Landscapes

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

Abstract

PURPOSE:To reduce the unnecessary time of a control system by performing speed control arithmetic by a control arithmetic means synchronously with the period of a speed detecting circuit. CONSTITUTION:The output Nc of a speed commanding circuit 1 is supplied to a microcomputer 2. An electric motor 4 is driven by an operation signal alpha supplied from the microcomputer 2. The output of a pulse generator 5 which generates a pulse train corresponding to the speed of the motor 4 is inputted to a counter 9 and a monostable circuit 10. A timer 6 generates a time interruption pulse TINT after a time set by the microcompurer 2. A counter 7 counts clock pulses from a pulse oscillator 8. The outputs MB and MA of counters 7 and 9 are inputted to the microcomputer 2. Only when an interruption inhibiting signal NINT from the microcomputer 2 is a ''1'', the monostable circuit 10 generates an interruption pulse INTP synchronously with the rise of the output pulse PLG of the pulse generator 5.
JP56070826A 1981-05-13 1981-05-13 Digital speed controller Granted JPS57187717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070826A JPS57187717A (en) 1981-05-13 1981-05-13 Digital speed controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070826A JPS57187717A (en) 1981-05-13 1981-05-13 Digital speed controller

Publications (2)

Publication Number Publication Date
JPS57187717A true JPS57187717A (en) 1982-11-18
JPH0344506B2 JPH0344506B2 (en) 1991-07-08

Family

ID=13442769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070826A Granted JPS57187717A (en) 1981-05-13 1981-05-13 Digital speed controller

Country Status (1)

Country Link
JP (1) JPS57187717A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035978A (en) * 1983-08-04 1985-02-23 Canon Inc Controller of motor
EP0188576A1 (en) * 1984-07-19 1986-07-30 Cymatics Inc Orbital shaker.
JPH0197189A (en) * 1987-10-05 1989-04-14 Ricoh Co Ltd Motor controller
US5060151A (en) * 1984-07-19 1991-10-22 Cymatics, Inc. Speed control for orbital shaker with reversing mode

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5428605A (en) * 1977-08-05 1979-03-03 Fujitsu Ltd Speed control system of magnetic tape feed motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5428605A (en) * 1977-08-05 1979-03-03 Fujitsu Ltd Speed control system of magnetic tape feed motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035978A (en) * 1983-08-04 1985-02-23 Canon Inc Controller of motor
EP0188576A1 (en) * 1984-07-19 1986-07-30 Cymatics Inc Orbital shaker.
US5060151A (en) * 1984-07-19 1991-10-22 Cymatics, Inc. Speed control for orbital shaker with reversing mode
JPH0197189A (en) * 1987-10-05 1989-04-14 Ricoh Co Ltd Motor controller

Also Published As

Publication number Publication date
JPH0344506B2 (en) 1991-07-08

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