JPS555013A - Method of controlling torque of brushless motor - Google Patents
Method of controlling torque of brushless motorInfo
- Publication number
- JPS555013A JPS555013A JP7551478A JP7551478A JPS555013A JP S555013 A JPS555013 A JP S555013A JP 7551478 A JP7551478 A JP 7551478A JP 7551478 A JP7551478 A JP 7551478A JP S555013 A JPS555013 A JP S555013A
- Authority
- JP
- Japan
- Prior art keywords
- control
- brushless motor
- signal
- current
- drive
- 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 simplify the control circuit of a brushless motor by controlling the torque of the motor under the control of drive currents flown through the respective phases.
CONSTITUTION: A brush angle γ is provided by a torque instruction 4 for an angle signal 3 detected by a position detector 2 directly coupled to the rotor of a brushless motor 1 to thereby produce a drive signal 6 indicating that the phase is displaced by γ from the signal 3. This drive signal becomes a drive current 8 by a current control power amplifier 7 to energize the windings of the respective phases of the motor 1. Thus, it does not control the absolute value of the current in the power amplifier, but control the phase of the angle signal of the rotor thus detected by the position detector. Accordingly, it does not necessitate a multiplier, but can simplify the control circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7551478A JPS555013A (en) | 1978-06-23 | 1978-06-23 | Method of controlling torque of brushless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7551478A JPS555013A (en) | 1978-06-23 | 1978-06-23 | Method of controlling torque of brushless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555013A true JPS555013A (en) | 1980-01-14 |
Family
ID=13578411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7551478A Pending JPS555013A (en) | 1978-06-23 | 1978-06-23 | Method of controlling torque of brushless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555013A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5866590A (en) * | 1981-08-31 | 1983-04-20 | コルモ−ゲン・コ−ポレイシヨン | Control system for synchronous brushless motor |
US5298839A (en) * | 1990-09-10 | 1994-03-29 | Fujitsu Limited | Electrical angle control system for a brushless DC motor in a magnetic disk apparatus |
-
1978
- 1978-06-23 JP JP7551478A patent/JPS555013A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5866590A (en) * | 1981-08-31 | 1983-04-20 | コルモ−ゲン・コ−ポレイシヨン | Control system for synchronous brushless motor |
US5298839A (en) * | 1990-09-10 | 1994-03-29 | Fujitsu Limited | Electrical angle control system for a brushless DC motor in a magnetic disk apparatus |
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