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JPS57142199A - Driving circuit for step motor - Google Patents

Driving circuit for step motor

Info

Publication number
JPS57142199A
JPS57142199A JP2664981A JP2664981A JPS57142199A JP S57142199 A JPS57142199 A JP S57142199A JP 2664981 A JP2664981 A JP 2664981A JP 2664981 A JP2664981 A JP 2664981A JP S57142199 A JPS57142199 A JP S57142199A
Authority
JP
Japan
Prior art keywords
pulse
step motor
power source
triac
pulses
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
JP2664981A
Other languages
Japanese (ja)
Other versions
JPS6126317B2 (en
Inventor
Haruo Terai
Masaki Nakamura
Takanori Gonda
Shigeo Hamaoka
Katsunori Zaizen
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2664981A priority Critical patent/JPS57142199A/en
Publication of JPS57142199A publication Critical patent/JPS57142199A/en
Publication of JPS6126317B2 publication Critical patent/JPS6126317B2/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
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step

Landscapes

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

Abstract

PURPOSE:To reduce the cost of a step motor by using an AC power source as the power source for the motor as it is, thereby eliminating a transformer and a large capacitor. CONSTITUTION:When a power switch 2 is closed, a capacitor 10 is charged in half wave to form a DC power source. A zero cross pulse generator 8 generates a pulse in the vicinity of zero voltage of the waveform of the power voltage. This pulse output is inputted to a counter 7, and is counted for odd numbers, and a pulse is then generated at odd pulses, for example, at each 3 pulses. A transistor 6 is driven by the output to flow a current to the gate of a triac 3, thereby triggering the triac 3. Accordingly, the half wave of the AC power source is alternately applied in positive and negative to the coil 4 of the step motor, and the step motor is rotated at every constant angle synchronously with the pulse.
JP2664981A 1981-02-24 1981-02-24 Driving circuit for step motor Granted JPS57142199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2664981A JPS57142199A (en) 1981-02-24 1981-02-24 Driving circuit for step motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2664981A JPS57142199A (en) 1981-02-24 1981-02-24 Driving circuit for step motor

Publications (2)

Publication Number Publication Date
JPS57142199A true JPS57142199A (en) 1982-09-02
JPS6126317B2 JPS6126317B2 (en) 1986-06-19

Family

ID=12199280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2664981A Granted JPS57142199A (en) 1981-02-24 1981-02-24 Driving circuit for step motor

Country Status (1)

Country Link
JP (1) JPS57142199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030090234A (en) * 2002-05-21 2003-11-28 삼성전기주식회사 Control method of stepping motor for pick-up driving using controller for DC motor and device for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030090234A (en) * 2002-05-21 2003-11-28 삼성전기주식회사 Control method of stepping motor for pick-up driving using controller for DC motor and device for the same

Also Published As

Publication number Publication date
JPS6126317B2 (en) 1986-06-19

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