JPS5646680A - Brushless motor driving system - Google Patents
Brushless motor driving systemInfo
- Publication number
- JPS5646680A JPS5646680A JP12100679A JP12100679A JPS5646680A JP S5646680 A JPS5646680 A JP S5646680A JP 12100679 A JP12100679 A JP 12100679A JP 12100679 A JP12100679 A JP 12100679A JP S5646680 A JPS5646680 A JP S5646680A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- control
- induction voltage
- pulse
- switching circuit
- 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
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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE:To make it possible to control a definite torque by a simple construction by a method wherein it starts with an open loop at the starting time, after a certain degree of the induction voltage is generated in a stator wiring, the motor speed is detected from the induction voltage, and controlled with a closed loop. CONSTITUTION:A signal of a starting pulse oscillator is given to a switching circuit 8 through a pulse distribution circuit 7. On the other hand, the induction voltage at stator wirings 5A-5D are input to a wave form transdurcing circuit 13 through a filter circuit 10, along with it is given to a switching circuit 8, gaining a rotary position pulse, the switching circuit is controlled by the output of a speed detection circuit 11. Further, at the starting time, a pulse in a distributor 7 is given to a motor driving circuit 9 to control by the open loop control, after the starting, the switching circuit 8 is switched to a rotor speed is gained from the induction voltage signal of the stator wiring to control by the closed loop. Accordingly, the control can be made not required a complexed position detector, it can made be made by the simple contruction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12100679A JPS5646680A (en) | 1979-09-20 | 1979-09-20 | Brushless motor driving system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12100679A JPS5646680A (en) | 1979-09-20 | 1979-09-20 | Brushless motor driving system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5646680A true JPS5646680A (en) | 1981-04-27 |
Family
ID=14800447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12100679A Pending JPS5646680A (en) | 1979-09-20 | 1979-09-20 | Brushless motor driving system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5646680A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495450A (en) * | 1982-12-29 | 1985-01-22 | Sanyo Electric Co., Ltd. | Control device for brushless motor |
EP0154863A2 (en) * | 1984-02-24 | 1985-09-18 | Hitachi, Ltd. | Apparatus for driving polyphase brushless motor |
US4631459A (en) * | 1984-12-25 | 1986-12-23 | Matsushita Electric Industrial Co., Ltd. | Brushless DC motor |
US4743815A (en) * | 1987-09-01 | 1988-05-10 | Emerson Electric Co. | Brushless permanent magnet motor system |
EP0578475A2 (en) * | 1992-07-08 | 1994-01-12 | Matsushita Electric Industrial Co., Ltd. | Motor control apparatus |
US6339303B1 (en) | 2000-03-31 | 2002-01-15 | International Business Machines Corporation | System, method, and program product for controlling communication of disk drive motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5280414A (en) * | 1975-12-26 | 1977-07-06 | Hitachi Ltd | Brushless motor |
-
1979
- 1979-09-20 JP JP12100679A patent/JPS5646680A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5280414A (en) * | 1975-12-26 | 1977-07-06 | Hitachi Ltd | Brushless motor |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495450A (en) * | 1982-12-29 | 1985-01-22 | Sanyo Electric Co., Ltd. | Control device for brushless motor |
EP0154863A2 (en) * | 1984-02-24 | 1985-09-18 | Hitachi, Ltd. | Apparatus for driving polyphase brushless motor |
US4631459A (en) * | 1984-12-25 | 1986-12-23 | Matsushita Electric Industrial Co., Ltd. | Brushless DC motor |
US4743815A (en) * | 1987-09-01 | 1988-05-10 | Emerson Electric Co. | Brushless permanent magnet motor system |
EP0578475A2 (en) * | 1992-07-08 | 1994-01-12 | Matsushita Electric Industrial Co., Ltd. | Motor control apparatus |
EP0578475A3 (en) * | 1992-07-08 | 1994-09-07 | Matsushita Electric Ind Co Ltd | Motor control apparatus |
US5481641A (en) * | 1992-07-08 | 1996-01-02 | Matsushita Electric Industrial Co., Ltd. | Motor control apparatus |
US6339303B1 (en) | 2000-03-31 | 2002-01-15 | International Business Machines Corporation | System, method, and program product for controlling communication of disk drive motor |
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