JPS56123784A - Control circuit for motor - Google Patents

Control circuit for motor

Info

Publication number
JPS56123784A
JPS56123784A JP2631480A JP2631480A JPS56123784A JP S56123784 A JPS56123784 A JP S56123784A JP 2631480 A JP2631480 A JP 2631480A JP 2631480 A JP2631480 A JP 2631480A JP S56123784 A JPS56123784 A JP S56123784A
Authority
JP
Japan
Prior art keywords
motor
resistor
plus
operational amplifier
output voltage
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
JP2631480A
Other languages
Japanese (ja)
Inventor
Kazuo Kashiwagi
Toshio Arai
Takao Toda
Masashige Shirai
Masaaki Yanagi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2631480A priority Critical patent/JPS56123784A/en
Publication of JPS56123784A publication Critical patent/JPS56123784A/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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual DC motor
    • H02P1/22—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual DC motor in either direction of rotation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To facilitate electronically a cut-out, a change-over of rotation direction and a change-over to a higher speed of a motor, by feeding a motor with a voltage corresponding to an output voltage from a variable resistor through an operational amplifying circuit and opening a feedback resistor of an operational amplifier whenever the output voltage surpasses a set value. CONSTITUTION:When an output terminal 35 of a variable resistor 23 is moved from the middle point to the direction of either F or G, either a plus potential or a minus potential is charged to a resistor 38, and an operational amplifier 24 feeds a motor 22 through a current amplifying circuit 27 which an output of either a plus or a minus potential proportional to an input volage. When either a plus or a minus output voltage of the variable resistor 23 surpasses the normal voltage of either a comparator 25 or 26, a relay 30 is switched on so that a switch 29 of a feedback resistor 28 of the operational amplifier 24 is opened to enable the motor 22 to revolve at full speed.
JP2631480A 1980-03-03 1980-03-03 Control circuit for motor Pending JPS56123784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2631480A JPS56123784A (en) 1980-03-03 1980-03-03 Control circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2631480A JPS56123784A (en) 1980-03-03 1980-03-03 Control circuit for motor

Publications (1)

Publication Number Publication Date
JPS56123784A true JPS56123784A (en) 1981-09-29

Family

ID=12189909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2631480A Pending JPS56123784A (en) 1980-03-03 1980-03-03 Control circuit for motor

Country Status (1)

Country Link
JP (1) JPS56123784A (en)

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