JPS57160376A - Control circuit for motor - Google Patents

Control circuit for motor

Info

Publication number
JPS57160376A
JPS57160376A JP56045173A JP4517381A JPS57160376A JP S57160376 A JPS57160376 A JP S57160376A JP 56045173 A JP56045173 A JP 56045173A JP 4517381 A JP4517381 A JP 4517381A JP S57160376 A JPS57160376 A JP S57160376A
Authority
JP
Japan
Prior art keywords
afc
signals
motors
starting
controlled
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
JP56045173A
Other languages
Japanese (ja)
Other versions
JPS6323754B2 (en
Inventor
Yasuo Nagai
Fumiyoshi Abe
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56045173A priority Critical patent/JPS57160376A/en
Publication of JPS57160376A publication Critical patent/JPS57160376A/en
Publication of JPS6323754B2 publication Critical patent/JPS6323754B2/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To enable the reduction of power in case of starting and precise AFC control by adding the APC signals of a microprocessor to the signals of an AFC circuit and controlling the motor for the revolution at fixed speed and interrupting the loop of the AFC circuit at starting. CONSTITUTION:When controlling each motor used for a VTR, etc., signals from a phase comparator 7 and a frequency measuring circuit 9 are supplied to the microprocessor 1, APC is conducted by the mode of a system control circuit 14 while the signals of the AFC circuit 10 are added through a switch 12, and the motors are controlled. At starting, the switch 12 is changed over by a decoder 13, APC and AFC are added by the microprocessor 1, and the motors are controlled. Accordingly, power consumption can be reduced by adjusting the rise of each motor at starting while the motors are controlled as the AFC is left as it is in analog signals for fixed speed and time lag is eliminated, and the motors can precisely be controlled.
JP56045173A 1981-03-27 1981-03-27 Control circuit for motor Granted JPS57160376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56045173A JPS57160376A (en) 1981-03-27 1981-03-27 Control circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56045173A JPS57160376A (en) 1981-03-27 1981-03-27 Control circuit for motor

Publications (2)

Publication Number Publication Date
JPS57160376A true JPS57160376A (en) 1982-10-02
JPS6323754B2 JPS6323754B2 (en) 1988-05-18

Family

ID=12711868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56045173A Granted JPS57160376A (en) 1981-03-27 1981-03-27 Control circuit for motor

Country Status (1)

Country Link
JP (1) JPS57160376A (en)

Also Published As

Publication number Publication date
JPS6323754B2 (en) 1988-05-18

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