JPS555012A - Method of controlling speed of brushless motor - Google Patents

Method of controlling speed of brushless motor

Info

Publication number
JPS555012A
JPS555012A JP7551378A JP7551378A JPS555012A JP S555012 A JPS555012 A JP S555012A JP 7551378 A JP7551378 A JP 7551378A JP 7551378 A JP7551378 A JP 7551378A JP S555012 A JPS555012 A JP S555012A
Authority
JP
Japan
Prior art keywords
phase
brushless motor
motor
speed
subtractor
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
JP7551378A
Other languages
Japanese (ja)
Inventor
Hisayasu Ito
Takashi Katsukawa
Akira Nagayama
Masao Kito
Shigeru Sakurai
Hirotoshi Seze
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.)
Yaskawa Electric Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Yaskawa Electric Manufacturing 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 Nippon Telegraph and Telephone Corp, Yaskawa Electric Manufacturing Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7551378A priority Critical patent/JPS555012A/en
Publication of JPS555012A publication Critical patent/JPS555012A/en
Pending legal-status Critical Current

Links

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE: To enable control of the speed of a brushless motor in wide range without necessity of switching the windings of the motor by electronically controlling the phase of a position detection signal to thereby vary the induced voltage equivalently.
CONSTITUTION: The speed of a brushless motor 1 operated by drive currents in respective phases by an angle signal between the stator magnetic axis and the rotor magnetic axis as detected by a position detector 9 is controlled by electronically varying the phase of the angle signal. The output of the detector 9 is, for example, counted by an up-down counter 10, and added or subtracted in the amount instructed by addition and subtraction mode switching signal 12 and phase setting instruction 13 in the phase by a parallel adder/subtractor 11. The output of the adder/ subtractor 11 is converted into an analog angle information via a ROM storing the trigonometric function in advance and a DA converter 15 and multiplied by a torque instruction 17 to thus generate drive signals 18a, 18b of the respective phases in the motor 1.
COPYRIGHT: (C)1980,JPO&Japio
JP7551378A 1978-06-23 1978-06-23 Method of controlling speed of brushless motor Pending JPS555012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7551378A JPS555012A (en) 1978-06-23 1978-06-23 Method of controlling speed of brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7551378A JPS555012A (en) 1978-06-23 1978-06-23 Method of controlling speed of brushless motor

Publications (1)

Publication Number Publication Date
JPS555012A true JPS555012A (en) 1980-01-14

Family

ID=13578382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7551378A Pending JPS555012A (en) 1978-06-23 1978-06-23 Method of controlling speed of brushless motor

Country Status (1)

Country Link
JP (1) JPS555012A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114012A (en) * 1980-02-13 1981-09-08 Telmec Co Ltd Precise positioning device
JPS5733917U (en) * 1980-08-06 1982-02-23
JPS60198425A (en) * 1984-03-23 1985-10-07 Kataoka Kikai Seisakusho:Kk Device for measuring and controlling take-up torque
JPS62290902A (en) * 1986-06-10 1987-12-17 Sony Corp Digital servo circuit
FR2649558A1 (en) * 1989-07-07 1991-01-11 Thomson Csf DEVICE FOR DYNAMICALLY MEASURING TORQUE OF AN AUTOSYNCHRONOUS MOTOR AND DEVICE FOR THE CONTROLLED CONTROL OF AN AUTOSYNCHRONOUS MOTOR USING THE DEVICE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114012A (en) * 1980-02-13 1981-09-08 Telmec Co Ltd Precise positioning device
JPS5733917U (en) * 1980-08-06 1982-02-23
JPS6221846Y2 (en) * 1980-08-06 1987-06-03
JPS60198425A (en) * 1984-03-23 1985-10-07 Kataoka Kikai Seisakusho:Kk Device for measuring and controlling take-up torque
JPH0442310B2 (en) * 1984-03-23 1992-07-13 Kataoka Kikai Seisakusho Kk
JPS62290902A (en) * 1986-06-10 1987-12-17 Sony Corp Digital servo circuit
FR2649558A1 (en) * 1989-07-07 1991-01-11 Thomson Csf DEVICE FOR DYNAMICALLY MEASURING TORQUE OF AN AUTOSYNCHRONOUS MOTOR AND DEVICE FOR THE CONTROLLED CONTROL OF AN AUTOSYNCHRONOUS MOTOR USING THE DEVICE
US5059878A (en) * 1989-07-07 1991-10-22 Thomson-Csf Device for the dynamic measurement of the torque of a self-synchronous motor and device for the servo-control of a self-synchronous motor using this device

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