JPS57162996A - Protecting circuit for stepping motor - Google Patents

Protecting circuit for stepping motor

Info

Publication number
JPS57162996A
JPS57162996A JP4787681A JP4787681A JPS57162996A JP S57162996 A JPS57162996 A JP S57162996A JP 4787681 A JP4787681 A JP 4787681A JP 4787681 A JP4787681 A JP 4787681A JP S57162996 A JPS57162996 A JP S57162996A
Authority
JP
Japan
Prior art keywords
microprocessor
stepping motor
motor
burnout
protecting circuit
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
JP4787681A
Other languages
Japanese (ja)
Inventor
Takeshi Matsushita
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.)
Tokyo Sanyo Electric Co Ltd
Toshiba TEC Corp
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tokyo Electric 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 Tokyo Sanyo Electric Co Ltd, Tokyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP4787681A priority Critical patent/JPS57162996A/en
Publication of JPS57162996A publication Critical patent/JPS57162996A/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
    • H02P8/36—Protection against faults, e.g. against overheating, step-out; Indicating faults

Abstract

PURPOSE:To prevent the burnout of a stepping motor upon erroneous operation of a microprocessor by connecting a one shot oscillator between the microprocessor and a switching circuit. CONSTITUTION:A one shot oscillator OSC is connected between a microprocessor 1 and a switching circuit 4, and a current which flows through the energization phase of a motor 5 is switched by the output pulse signal of the oscillator OSC. Even if the microprocessor 1 is stopped on the way to the final trigger pulse during erroneous operation or debugging operation of the microprocessor 1, it is automatically switched to the low power mode in this manner. Accordingly, the heating and burnout of the motor can be prevented in advance.
JP4787681A 1981-03-31 1981-03-31 Protecting circuit for stepping motor Pending JPS57162996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4787681A JPS57162996A (en) 1981-03-31 1981-03-31 Protecting circuit for stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4787681A JPS57162996A (en) 1981-03-31 1981-03-31 Protecting circuit for stepping motor

Publications (1)

Publication Number Publication Date
JPS57162996A true JPS57162996A (en) 1982-10-06

Family

ID=12787577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4787681A Pending JPS57162996A (en) 1981-03-31 1981-03-31 Protecting circuit for stepping motor

Country Status (1)

Country Link
JP (1) JPS57162996A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574225A (en) * 1984-08-06 1986-03-04 Pacific Scientific Company Apparatus for accommodating inductive flyback in pulsed motor windings
JPS6165896U (en) * 1984-09-29 1986-05-06
JPS6253196A (en) * 1985-08-28 1987-03-07 Sony Corp Shifter for head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574225A (en) * 1984-08-06 1986-03-04 Pacific Scientific Company Apparatus for accommodating inductive flyback in pulsed motor windings
JPS6165896U (en) * 1984-09-29 1986-05-06
JPS6253196A (en) * 1985-08-28 1987-03-07 Sony Corp Shifter for head

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