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 thereof

Info

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
Application number
TW093140774A
Other languages
Chinese (zh)
Other versions
TWI273391B (en
Inventor
Jian-Guo Shia
Original Assignee
Jian-Guo Shia
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jian-Guo Shia filed Critical Jian-Guo Shia
Priority to TW93140774A priority Critical patent/TWI273391B/en
Publication of TW200622595A publication Critical patent/TW200622595A/en
Application granted granted Critical
Publication of TWI273391B publication Critical patent/TWI273391B/en

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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.
TW93140774A 2004-12-27 2004-12-27 Servo motor having non-contact angular sensing apparatus and method for calculating twiddle factor thereof TWI273391B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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MM4A Annulment or lapse of patent due to non-payment of fees