TW200620809A - Sensing device of rotor position used for DC brushless motor - Google Patents

Sensing device of rotor position used for DC brushless motor

Info

Publication number
TW200620809A
TW200620809A TW093137080A TW93137080A TW200620809A TW 200620809 A TW200620809 A TW 200620809A TW 093137080 A TW093137080 A TW 093137080A TW 93137080 A TW93137080 A TW 93137080A TW 200620809 A TW200620809 A TW 200620809A
Authority
TW
Taiwan
Prior art keywords
brushless motor
detecting
voltage
resistance
rotor
Prior art date
Application number
TW093137080A
Other languages
Chinese (zh)
Inventor
Zhi-Ming Yang
Original Assignee
Tatung Co Ltd
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 Tatung Co Ltd filed Critical Tatung Co Ltd
Priority to TW093137080A priority Critical patent/TW200620809A/en
Publication of TW200620809A publication Critical patent/TW200620809A/en

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A sensing device of rotor position used for DC brushless motor is disclosed. The position of the rotor of the DC brushless motor is determined based on zero crossover, comprising reference resistance sets consisting of at least one resistance to be used to provide the reference voltage, a plurality of detecting resistance sets in which every detecting resistance set consists of at least one resistance and is respectively inputted with drive voltage to provide detecting voltage, and a plurality of comparators in which every comparator is used to compare the reference voltage and the detecting voltage to output the comparison result to the controller. When one of the detecting voltages exceeds the reference voltage, the comparison result indicates zero crossover, and the controller gets the position of the rotor according to the plurality of comparison results. The drive voltage is provided by the converter to drive the rotor of the DC brushless motor.
TW093137080A 2004-12-01 2004-12-01 Sensing device of rotor position used for DC brushless motor TW200620809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW093137080A TW200620809A (en) 2004-12-01 2004-12-01 Sensing device of rotor position used for DC brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW093137080A TW200620809A (en) 2004-12-01 2004-12-01 Sensing device of rotor position used for DC brushless motor

Publications (1)

Publication Number Publication Date
TW200620809A true TW200620809A (en) 2006-06-16

Family

ID=57808365

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093137080A TW200620809A (en) 2004-12-01 2004-12-01 Sensing device of rotor position used for DC brushless motor

Country Status (1)

Country Link
TW (1) TW200620809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675544B (en) * 2018-04-24 2019-10-21 建準電機工業股份有限公司 Location detection system for use in a brushless direct current motor and switching method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675544B (en) * 2018-04-24 2019-10-21 建準電機工業股份有限公司 Location detection system for use in a brushless direct current motor and switching method thereof

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