TW200635202A - Brushless motor drive device - Google Patents

Brushless motor drive device

Info

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
Application number
TW094108150A
Other languages
Chinese (zh)
Other versions
TWI297979B (en
Inventor
Guang-Nan Tzeng
Feng-Rurng Juang
Chi-Yang Chen
Original Assignee
Aimtron Technology Corp
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 Aimtron Technology Corp filed Critical Aimtron Technology Corp
Priority to TW94108150A priority Critical patent/TWI297979B/en
Publication of TW200635202A publication Critical patent/TW200635202A/en
Application granted granted Critical
Publication of TWI297979B publication Critical patent/TWI297979B/en

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.
TW94108150A 2005-03-17 2005-03-17 Brushless motor drive device TWI297979B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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