JPS56103997A - Circuit for sensing operation of stepmotor - Google Patents

Circuit for sensing operation of stepmotor

Info

Publication number
JPS56103997A
JPS56103997A JP619280A JP619280A JPS56103997A JP S56103997 A JPS56103997 A JP S56103997A JP 619280 A JP619280 A JP 619280A JP 619280 A JP619280 A JP 619280A JP S56103997 A JPS56103997 A JP S56103997A
Authority
JP
Japan
Prior art keywords
circuit
signal
stepmotor
sensing
coil
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
JP619280A
Other languages
Japanese (ja)
Other versions
JPS6010517B2 (en
Inventor
Tokukado Ogawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP619280A priority Critical patent/JPS6010517B2/en
Publication of JPS56103997A publication Critical patent/JPS56103997A/en
Publication of JPS6010517B2 publication Critical patent/JPS6010517B2/en
Expired 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 rotating step by step

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To accurately sense the skipping of hands due to disturbance and the like by rectifying the potential waveform generated in a coil by the rotation of a rotor and sensing the forward and reverse rotations of the rotor. CONSTITUTION:The oscillated signal from an oscillating circuit 38 is divided by a frequency dividing circuit 39. Said frequency divided signal is converted into the reference signal for a controlling circuit 41, a sensing circuit 43, and a driving circuit 42 by a waveform synthesizing circuir 40. The controlling circuit 41 rotates the stepmotor 44 by the clockwise rotating sensing signal T1 for the second hand of the detecting circuit 43 and counterclockwise signal T2, and compensates the error of the second hand. If the motor is not rotated by the driving pulse, the controlling circuit 41 compensates the motor by sending the compensating pulses. The driving circuit 42 applies the reversing pulses whose direction of the current changes every one second to the coil of the stepmotor 24 by the output signal of the controlling circuit 41. The sensing circuit 43 judges the skipping of the second hand and the rotation of the rotor caused by the driving pulses by using the potential waveform generated in the coil of the stepmotor 44.
JP619280A 1980-01-22 1980-01-22 Step motor operation detection circuit Expired JPS6010517B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP619280A JPS6010517B2 (en) 1980-01-22 1980-01-22 Step motor operation detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP619280A JPS6010517B2 (en) 1980-01-22 1980-01-22 Step motor operation detection circuit

Publications (2)

Publication Number Publication Date
JPS56103997A true JPS56103997A (en) 1981-08-19
JPS6010517B2 JPS6010517B2 (en) 1985-03-18

Family

ID=11631683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP619280A Expired JPS6010517B2 (en) 1980-01-22 1980-01-22 Step motor operation detection circuit

Country Status (1)

Country Link
JP (1) JPS6010517B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6264296A (en) * 1985-09-13 1987-03-23 Hitachi Ltd Step-out detector for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6264296A (en) * 1985-09-13 1987-03-23 Hitachi Ltd Step-out detector for motor

Also Published As

Publication number Publication date
JPS6010517B2 (en) 1985-03-18

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