JPS55147994A - Motor speed control device - Google Patents

Motor speed control device

Info

Publication number
JPS55147994A
JPS55147994A JP5501579A JP5501579A JPS55147994A JP S55147994 A JPS55147994 A JP S55147994A JP 5501579 A JP5501579 A JP 5501579A JP 5501579 A JP5501579 A JP 5501579A JP S55147994 A JPS55147994 A JP S55147994A
Authority
JP
Japan
Prior art keywords
terminals
motor
output
motor speed
signal
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
JP5501579A
Other languages
Japanese (ja)
Other versions
JPS627785B2 (en
Inventor
Mamoru Imaizumi
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP5501579A priority Critical patent/JPS55147994A/en
Publication of JPS55147994A publication Critical patent/JPS55147994A/en
Publication of JPS627785B2 publication Critical patent/JPS627785B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/07—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors
    • G05B19/075—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors for delivering a step function, a slope or a continuous function

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Sewing Machines And Sewing (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To highly accurately control a motor speed without affect of temperature and voltage changes by converting the operating amount of operating means to digital signal and digitally processing it to generate a motor speed control signal. CONSTITUTION:When a pedal is pressed in the state that a DC motor DM is stopped, photo switches 12, 13 are operated to apply one by one pulse signals each having predetermined phase difference to a D-type flip-flop 31. The signal obtained at output terminals 1Q, 3Q are fed back to input terminals 2D, 4D produce pulse signals having delayed clock pulses in one period for the output terminals 1Q, 3Q, respectively. The output signals are applied to the select terminals S0, S1 of a multiplexer 32 to thus obtain predetermined outputs at the terminals 1Y, 2Y, respectively. The output signal of the multiplexer 32 is inverted by inverters 33, 34, and the inverted outputs are applied to the input terminals UP, DN of the counter 35. The output from the counter is applied to the motor control circuit 42 to control the rotating speed of the DC motor DM.
JP5501579A 1979-05-04 1979-05-04 Motor speed control device Granted JPS55147994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5501579A JPS55147994A (en) 1979-05-04 1979-05-04 Motor speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5501579A JPS55147994A (en) 1979-05-04 1979-05-04 Motor speed control device

Publications (2)

Publication Number Publication Date
JPS55147994A true JPS55147994A (en) 1980-11-18
JPS627785B2 JPS627785B2 (en) 1987-02-19

Family

ID=12986826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5501579A Granted JPS55147994A (en) 1979-05-04 1979-05-04 Motor speed control device

Country Status (1)

Country Link
JP (1) JPS55147994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173590A (en) * 1982-04-02 1983-10-12 松下電器産業株式会社 Control apparatus of sewing machine
JPS58173589A (en) * 1982-04-02 1983-10-12 松下電器産業株式会社 Control apparatus of sewing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173590A (en) * 1982-04-02 1983-10-12 松下電器産業株式会社 Control apparatus of sewing machine
JPS58173589A (en) * 1982-04-02 1983-10-12 松下電器産業株式会社 Control apparatus of sewing machine
JPS6366227B2 (en) * 1982-04-02 1988-12-20 Matsushita Electric Ind Co Ltd
JPS6366226B2 (en) * 1982-04-02 1988-12-20 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS627785B2 (en) 1987-02-19

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