JPS60257793A - Rotation detector of stepping motor - Google Patents

Rotation detector of stepping motor

Info

Publication number
JPS60257793A
JPS60257793A JP11336784A JP11336784A JPS60257793A JP S60257793 A JPS60257793 A JP S60257793A JP 11336784 A JP11336784 A JP 11336784A JP 11336784 A JP11336784 A JP 11336784A JP S60257793 A JPS60257793 A JP S60257793A
Authority
JP
Japan
Prior art keywords
electromotive force
rotor
pulse
voltage
exciting
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
JP11336784A
Other languages
Japanese (ja)
Inventor
Yoshio Kanagu
Yasuhiro Kondo
Original Assignee
Matsushita Electric Ind 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP11336784A priority Critical patent/JPS60257793A/en
Publication of JPS60257793A publication Critical patent/JPS60257793A/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
    • H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
    • H02P8/32—Reducing overshoot or oscillation, e.g. damping

Abstract

PURPOSE:To detect whether a rotor is normally rotated or not with a simple circuit by detecting an electromotive force by a permanent magnet rotor. CONSTITUTION:An exciting pulse is applied to an exciting winding 22, and an electromotive force due to a permanent magnet rotor 21 is passed to the winding 22 by a gate circuit 24 only during nonconduction period of an exciting pulse. An electromotive force waveform is integrated by an integrator 25 to compare it with a reference voltage by a voltage comparator 26. The voltage comparator 26 generates a pulse output synchronized with a drive pulse when the rotor normally rotates and generates a rotation detection signal becoming always zero when not normally rotates by suitably selecting the reference voltage.
JP11336784A 1984-06-01 1984-06-01 Rotation detector of stepping motor Pending JPS60257793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11336784A JPS60257793A (en) 1984-06-01 1984-06-01 Rotation detector of stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11336784A JPS60257793A (en) 1984-06-01 1984-06-01 Rotation detector of stepping motor

Publications (1)

Publication Number Publication Date
JPS60257793A true JPS60257793A (en) 1985-12-19

Family

ID=14610480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11336784A Pending JPS60257793A (en) 1984-06-01 1984-06-01 Rotation detector of stepping motor

Country Status (1)

Country Link
JP (1) JPS60257793A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03145998A (en) * 1989-10-31 1991-06-21 Seikosha Co Ltd Rotation detecting method for motor
EP2110942A3 (en) * 2008-04-11 2015-08-19 MINEBEA Co., Ltd. Method of detecting state of synchronization loss in stepping motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03145998A (en) * 1989-10-31 1991-06-21 Seikosha Co Ltd Rotation detecting method for motor
EP2110942A3 (en) * 2008-04-11 2015-08-19 MINEBEA Co., Ltd. Method of detecting state of synchronization loss in stepping motor

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