JPS6450786A - Brushless servo-motor driving device - Google Patents
Brushless servo-motor driving deviceInfo
- Publication number
- JPS6450786A JPS6450786A JP62207617A JP20761787A JPS6450786A JP S6450786 A JPS6450786 A JP S6450786A JP 62207617 A JP62207617 A JP 62207617A JP 20761787 A JP20761787 A JP 20761787A JP S6450786 A JPS6450786 A JP S6450786A
- Authority
- JP
- Japan
- Prior art keywords
- computer
- pulse width
- rotor
- function
- driving device
- 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 avoid torque ununiformity, by detecting a rotor position, to set the position to be a numerical value to provide the input of the value to a computer, and by producing pulse width signal with a duty changing with a sin function and a cos function. CONSTITUTION:A brushless servomotor 20 is provided with a rotor 1 and armature coils 2-3, and the driving device of the motor is composed of an encoder 4, a pulse generator 5, drivers 13-14, and a microprocessor 30. The microprocessor 30 is composed of a U/D counter 7, a computer 8, an I/O 9, pulse width modulation generators (PWM) 10-11, and a ROM 12. Then, the magnetic pole position of the rotor 1 is detected by the encoder 4, and position is set to be a numerical value by the U/D counter 7, and is informed to the computer 8. According to the information, by the computer 8, pulse width signal with duty changing with a sin function and a cos function is produced, and based on this signal, pulse width current with the duty changing with the sin, cos is permitted to flow to the field coils 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62207617A JPS6450786A (en) | 1987-08-21 | 1987-08-21 | Brushless servo-motor driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62207617A JPS6450786A (en) | 1987-08-21 | 1987-08-21 | Brushless servo-motor driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6450786A true JPS6450786A (en) | 1989-02-27 |
Family
ID=16542758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62207617A Pending JPS6450786A (en) | 1987-08-21 | 1987-08-21 | Brushless servo-motor driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6450786A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146336A1 (en) * | 2007-05-30 | 2008-12-04 | Harmonic Drive Systems Inc. | Rotational position detecting method for ac servomotor and simple encoder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822893B2 (en) * | 1979-07-06 | 1983-05-12 | 株式会社日立製作所 | Data highway system line control method |
-
1987
- 1987-08-21 JP JP62207617A patent/JPS6450786A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822893B2 (en) * | 1979-07-06 | 1983-05-12 | 株式会社日立製作所 | Data highway system line control method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146336A1 (en) * | 2007-05-30 | 2008-12-04 | Harmonic Drive Systems Inc. | Rotational position detecting method for ac servomotor and simple encoder |
| JPWO2008146336A1 (en) * | 2007-05-30 | 2010-08-12 | 株式会社ハーモニック・ドライブ・システムズ | AC servo motor rotational position detection method and simple encoder |
| US8232757B2 (en) | 2007-05-30 | 2012-07-31 | Harmonic Drive Systems Inc. | Rotational position detecting method for AC servomotor and simple encoder |
| JP5172833B2 (en) * | 2007-05-30 | 2013-03-27 | 株式会社ハーモニック・ドライブ・システムズ | AC servo motor rotational position detection method and simple encoder |
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