JPS555012A - Method of controlling speed of brushless motor - Google Patents
Method of controlling speed of brushless motorInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1978
- 1978-06-23 JP JP7551378A patent/JPS555012A/en active Pending
Cited By (8)
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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