JPS52156329A - Variable frequency circuit for driving motor - Google Patents

Variable frequency circuit for driving motor

Info

Publication number
JPS52156329A
JPS52156329A JP7325376A JP7325376A JPS52156329A JP S52156329 A JPS52156329 A JP S52156329A JP 7325376 A JP7325376 A JP 7325376A JP 7325376 A JP7325376 A JP 7325376A JP S52156329 A JPS52156329 A JP S52156329A
Authority
JP
Japan
Prior art keywords
driving motor
variable frequency
frequency circuit
motor
time
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
JP7325376A
Other languages
Japanese (ja)
Inventor
Daisaku Morinaga
Nobunori Matsudaira
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7325376A priority Critical patent/JPS52156329A/en
Publication of JPS52156329A publication Critical patent/JPS52156329A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To operate a motor at a constant speed in a high accuracy and to enable a preset operation instantaneously at the time of stopping the motor, by such means that a dividing ratio of the ratio variable ring counter for dividing the output frequency of highly atabilized crystal oscillator be controlled with its frequency output so as to vary in linear with respect to a time.
COPYRIGHT: (C)1977,JPO&Japio
JP7325376A 1976-06-23 1976-06-23 Variable frequency circuit for driving motor Pending JPS52156329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7325376A JPS52156329A (en) 1976-06-23 1976-06-23 Variable frequency circuit for driving motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7325376A JPS52156329A (en) 1976-06-23 1976-06-23 Variable frequency circuit for driving motor

Publications (1)

Publication Number Publication Date
JPS52156329A true JPS52156329A (en) 1977-12-26

Family

ID=13512815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7325376A Pending JPS52156329A (en) 1976-06-23 1976-06-23 Variable frequency circuit for driving motor

Country Status (1)

Country Link
JP (1) JPS52156329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152193A (en) * 1984-08-22 1986-03-14 Toshiba Corp Pwm control circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989812A (en) * 1972-12-29 1974-08-28
JPS5061309A (en) * 1973-10-03 1975-05-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989812A (en) * 1972-12-29 1974-08-28
JPS5061309A (en) * 1973-10-03 1975-05-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152193A (en) * 1984-08-22 1986-03-14 Toshiba Corp Pwm control circuit

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