TW200622595A - Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereof - Google Patents
Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereofInfo
- Publication number
- TW200622595A TW200622595A TW093140774A TW93140774A TW200622595A TW 200622595 A TW200622595 A TW 200622595A TW 093140774 A TW093140774 A TW 093140774A TW 93140774 A TW93140774 A TW 93140774A TW 200622595 A TW200622595 A TW 200622595A
- Authority
- TW
- Taiwan
- Prior art keywords
- servo motor
- sensing apparatus
- twiddle factor
- angular sensing
- rotor
- Prior art date
Links
Abstract
A servo motor having a non-contact angular sensing apparatus and the method for calculating twiddle factor thereof are disclosed in this invention. The servo motor comprises a stator, a rotor, an angular sensing apparatus and a control apparatus. The angular sensing apparatus comprises a magnetic device deposed in the rotor and two Hall devices deposed in the stator for sensing the variation of the magnetic field generated by the magnetic devices. The control apparatus is used to receive the feedback signals output from the Hall devices, processes the feedback signals by cooperating with the twiddle factor calculation method, and finally compares the processed feedback signals with external control signals to decide the driving signal output to the rotor. Thus a servo motor and a method capable of sensing the rotation angle without the limitation of rotation counts limit are provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93140774A TWI273391B (en) | 2004-12-27 | 2004-12-27 | Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93140774A TWI273391B (en) | 2004-12-27 | 2004-12-27 | Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200622595A true TW200622595A (en) | 2006-07-01 |
TWI273391B TWI273391B (en) | 2007-02-11 |
Family
ID=38621499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93140774A TWI273391B (en) | 2004-12-27 | 2004-12-27 | Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI273391B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8525465B2 (en) | 2010-10-25 | 2013-09-03 | Industrial Technology Research Institute | Feedback switching device and method for driving of servo motor |
CN103292832A (en) * | 2012-02-24 | 2013-09-11 | 赐福科技股份有限公司 | Motor absolute position recording device |
TWI460414B (en) * | 2012-09-12 | 2014-11-11 | Non - contact steering sensing method and device |
-
2004
- 2004-12-27 TW TW93140774A patent/TWI273391B/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8525465B2 (en) | 2010-10-25 | 2013-09-03 | Industrial Technology Research Institute | Feedback switching device and method for driving of servo motor |
CN103292832A (en) * | 2012-02-24 | 2013-09-11 | 赐福科技股份有限公司 | Motor absolute position recording device |
TWI469503B (en) * | 2012-02-24 | 2015-01-11 | Foxnum Technology Co Ltd | Absolute place recording devcie for motors |
TWI460414B (en) * | 2012-09-12 | 2014-11-11 | Non - contact steering sensing method and device |
Also Published As
Publication number | Publication date |
---|---|
TWI273391B (en) | 2007-02-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |