JPS566685A - Revolution speed controlling device for motor - Google Patents

Revolution speed controlling device for motor

Info

Publication number
JPS566685A
JPS566685A JP8020779A JP8020779A JPS566685A JP S566685 A JPS566685 A JP S566685A JP 8020779 A JP8020779 A JP 8020779A JP 8020779 A JP8020779 A JP 8020779A JP S566685 A JPS566685 A JP S566685A
Authority
JP
Japan
Prior art keywords
signal
digital data
phase
revolution speed
difference
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
JP8020779A
Other languages
Japanese (ja)
Inventor
Takashi Furuhata
Saburo Kazama
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 JP8020779A priority Critical patent/JPS566685A/en
Publication of JPS566685A publication Critical patent/JPS566685A/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
    • 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

Abstract

PURPOSE:To economize the power consumption in a control system and also improve starting characteristic by obtaining a binary digital data corresponding to the phase difference between a revolution phase signal and a reference signal and by performing control of a driving circuit according to the difference between the said digital data and the revolution speed signal. CONSTITUTION:A revolution phase signal F is obtained by having a detector 8 corresponding to a rotating disc 7 which is connected to a motor 6, the said signal F is compared with a reference signal H using a digital phase comparator 14 and obtain a binary digital data D corresponding to the phase difference. Also a revolution speed signal A is obtained by corresponding another detector 12 to the rotating disc 7 and the signal B which passed through a pulse shaping device 13 is input to a digital pulse width modulator 15. The binary digital data D and the signal B are compared by the digital pulse width modulator 15 and a driving circuit 5 is controlled by the difference P obtained by the modulator 15. As a result, the control system can be highly integrated, miniaturized, economized in power consumption and stabilized as well.
JP8020779A 1979-06-27 1979-06-27 Revolution speed controlling device for motor Pending JPS566685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8020779A JPS566685A (en) 1979-06-27 1979-06-27 Revolution speed controlling device for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8020779A JPS566685A (en) 1979-06-27 1979-06-27 Revolution speed controlling device for motor

Publications (1)

Publication Number Publication Date
JPS566685A true JPS566685A (en) 1981-01-23

Family

ID=13711934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8020779A Pending JPS566685A (en) 1979-06-27 1979-06-27 Revolution speed controlling device for motor

Country Status (1)

Country Link
JP (1) JPS566685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

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