JPS57126292A - Speed controlling system for dc motor - Google Patents

Speed controlling system for dc motor

Info

Publication number
JPS57126292A
JPS57126292A JP56009974A JP997481A JPS57126292A JP S57126292 A JPS57126292 A JP S57126292A JP 56009974 A JP56009974 A JP 56009974A JP 997481 A JP997481 A JP 997481A JP S57126292 A JPS57126292 A JP S57126292A
Authority
JP
Japan
Prior art keywords
signal
speed
motor
circuit
pulse
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
JP56009974A
Other languages
Japanese (ja)
Other versions
JPH0127674B2 (en
Inventor
Akio Nagai
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.)
SHINSHIYUU SEIKI KK
Seiko Epson Corp
Epson Corp
Original Assignee
SHINSHIYUU SEIKI KK
Seiko Epson Corp
Epson 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 SHINSHIYUU SEIKI KK, Seiko Epson Corp, Epson Corp filed Critical SHINSHIYUU SEIKI KK
Priority to JP56009974A priority Critical patent/JPS57126292A/en
Publication of JPS57126292A publication Critical patent/JPS57126292A/en
Publication of JPH0127674B2 publication Critical patent/JPH0127674B2/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
    • H02P23/18—Controlling the angular speed together with angular position or phase
    • H02P23/186—Controlling the angular speed together with angular position or phase of one shaft by controlling the prime mover

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To improve the stability and the controlling accuracy of a DC motor by providing a circuit for frequency-modulating the output signals of a low pass filter, a differentiating circuit and a reference oscillator. CONSTITUTION:The phase difference between a reference speed pulse 6 oscillated by a reference oscillator 1 and a pulse train 7 corresponding to the speed from an encoder mounted at a moter 4 is detected by a phase comparator 2, and a switching circuit 3 is controlled by a pulse signal 8 of a duty responsive to the phase difference. The signal 8 is converted via a low pass filter 9 into an analog speed signal 11, is further converted via a differentiating circuit 10 into a quasi-acceleration signal 12, and the output signal of the oscillator 1 is frequency-modulated with the signal 12. In this manner, the stability and the controlling accuracy of a controlling system can be improved.
JP56009974A 1981-01-26 1981-01-26 Speed controlling system for dc motor Granted JPS57126292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56009974A JPS57126292A (en) 1981-01-26 1981-01-26 Speed controlling system for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56009974A JPS57126292A (en) 1981-01-26 1981-01-26 Speed controlling system for dc motor

Publications (2)

Publication Number Publication Date
JPS57126292A true JPS57126292A (en) 1982-08-05
JPH0127674B2 JPH0127674B2 (en) 1989-05-30

Family

ID=11734882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56009974A Granted JPS57126292A (en) 1981-01-26 1981-01-26 Speed controlling system for dc motor

Country Status (1)

Country Link
JP (1) JPS57126292A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215677A (en) * 1988-01-06 1989-08-29 Ford Motor Co Method and device for determining steering position in steering mechanism for automobile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567495U (en) * 1979-06-27 1981-01-22

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416021A (en) * 1977-07-06 1979-02-06 Kawasaki Heavy Ind Ltd Scavenging arrangement for multicylinder two cycle internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567495U (en) * 1979-06-27 1981-01-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215677A (en) * 1988-01-06 1989-08-29 Ford Motor Co Method and device for determining steering position in steering mechanism for automobile

Also Published As

Publication number Publication date
JPH0127674B2 (en) 1989-05-30

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