TW200635202A - Brushless motor drive device - Google Patents
Brushless motor drive deviceInfo
- Publication number
- TW200635202A TW200635202A TW094108150A TW94108150A TW200635202A TW 200635202 A TW200635202 A TW 200635202A TW 094108150 A TW094108150 A TW 094108150A TW 94108150 A TW94108150 A TW 94108150A TW 200635202 A TW200635202 A TW 200635202A
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- motor
- amplitude
- duty cycle
- frequency reference
- Prior art date
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A Hall sensing circuit generates a positional detection signal representative of a positional relationship between a rotor and a phase coil of a motor. A signal synthesizing circuit transforms the positional detection signal to a driving signal. Based on a comparison of the driving signal and a high-frequency reference signal, a pulse signal is generated for controlling a switching circuit to drive the motor. A current error signal modulates by feedback a relative relationship between an amplitude of the drive signal and an amplitude of the high-frequency reference signal, thereby changing a duty cycle of the pulse signal. A duty limiting circuit is provided to limit the duty cycle of the pulse signal for ensuring a reliable rotation of the motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94108150A TWI297979B (en) | 2005-03-17 | 2005-03-17 | Brushless motor drive device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94108150A TWI297979B (en) | 2005-03-17 | 2005-03-17 | Brushless motor drive device |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200635202A true TW200635202A (en) | 2006-10-01 |
TWI297979B TWI297979B (en) | 2008-06-11 |
Family
ID=45069261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW94108150A TWI297979B (en) | 2005-03-17 | 2005-03-17 | Brushless motor drive device |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI297979B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI399030B (en) * | 2009-08-19 | 2013-06-11 | Delta Electronics Inc | Motor controlling apparatus |
TWI399031B (en) * | 2009-08-19 | 2013-06-11 | Delta Electronics Inc | Motor control apparatus and method thereof |
TWI643442B (en) * | 2017-09-25 | 2018-12-01 | 祥誠科技股份有限公司 | Multi-phase brushless dc motor drivng circuit |
-
2005
- 2005-03-17 TW TW94108150A patent/TWI297979B/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI399030B (en) * | 2009-08-19 | 2013-06-11 | Delta Electronics Inc | Motor controlling apparatus |
TWI399031B (en) * | 2009-08-19 | 2013-06-11 | Delta Electronics Inc | Motor control apparatus and method thereof |
US8723463B2 (en) | 2009-08-19 | 2014-05-13 | Delta Electronics, Inc. | Motor control apparatus and method thereof |
TWI643442B (en) * | 2017-09-25 | 2018-12-01 | 祥誠科技股份有限公司 | Multi-phase brushless dc motor drivng circuit |
US10615723B2 (en) | 2017-09-25 | 2020-04-07 | Energic Technologies Corp. | Multi-phase brushless DC motor driving circuit |
Also Published As
Publication number | Publication date |
---|---|
TWI297979B (en) | 2008-06-11 |
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