WO2007119094A3 - Driving brushless dc motors - Google Patents

Driving brushless dc motors Download PDF

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Publication number
WO2007119094A3
WO2007119094A3 PCT/IB2006/002724 IB2006002724W WO2007119094A3 WO 2007119094 A3 WO2007119094 A3 WO 2007119094A3 IB 2006002724 W IB2006002724 W IB 2006002724W WO 2007119094 A3 WO2007119094 A3 WO 2007119094A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
stall
coils
rotation
event
Prior art date
Application number
PCT/IB2006/002724
Other languages
French (fr)
Other versions
WO2007119094A2 (en
Inventor
Rumen Marinov Peev
Radostin Tsankov Tsankov
Dobromir Petkov Dobrev
Pavel Georgiev Nedev
Christophe Daniel Cot
Original Assignee
Melexis Nv
Rumen Marinov Peev
Radostin Tsankov Tsankov
Dobromir Petkov Dobrev
Pavel Georgiev Nedev
Christophe Daniel Cot
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 Melexis Nv, Rumen Marinov Peev, Radostin Tsankov Tsankov, Dobromir Petkov Dobrev, Pavel Georgiev Nedev, Christophe Daniel Cot filed Critical Melexis Nv
Publication of WO2007119094A2 publication Critical patent/WO2007119094A2/en
Publication of WO2007119094A3 publication Critical patent/WO2007119094A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/20—Arrangements for starting
    • H02P6/22—Arrangements for starting in a selected direction of rotation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/17—Circuit arrangements for detecting position and for generating speed information

Abstract

When a stall-rotor event occurs in a BLDC motor (100), the controller unit (104) periodically alternates (at a selected frequency) the direction of current supplied to the coils and thus correspondingly varies the direction of the torque applied to the coils. The frequency of alternation is appropriately selected in order to lower the effective friction experienced by the rotor (102) and thus to maximize the possibility to overcome the stall-rotor event. The mean current flow applied to the coils is not equal in each direction. In one direction, corresponding to the desired direction of rotation of the rotor (102), a larger mean current is applied than in the other direction. Accordingly, the average value of the alternating rotor torque corresponds to the desired direction of rotation. Accordingly, this ensures that rotation occurs in the desired direction when the stall-rotor event is overcome.
PCT/IB2006/002724 2006-01-20 2006-10-02 Driving brushless dc motors WO2007119094A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0601172.0A GB0601172D0 (en) 2006-01-20 2006-01-20 Driving brushless DC motors
GB0601172.0 2006-01-20

Publications (2)

Publication Number Publication Date
WO2007119094A2 WO2007119094A2 (en) 2007-10-25
WO2007119094A3 true WO2007119094A3 (en) 2007-12-27

Family

ID=36010667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/002724 WO2007119094A2 (en) 2006-01-20 2006-10-02 Driving brushless dc motors

Country Status (2)

Country Link
GB (1) GB0601172D0 (en)
WO (1) WO2007119094A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8058826B2 (en) * 2008-06-30 2011-11-15 Woodward Hrt, Inc. Motor controller with hall sensor output misalignment compensation using delayed or shifted commutation
US8587231B2 (en) 2010-09-28 2013-11-19 Black & Decker Inc. Method and system for electronic braking of a motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078152A (en) * 1996-01-10 2000-06-20 Papst-Motoren Gmbh & Co. Kg Bidirectional E.C. motor and method of operating the motor
US6204618B1 (en) * 1999-06-08 2001-03-20 Industrial Technology Research Institute Starting method for brushless DC motor and device for the same
DE202005009054U1 (en) * 2005-06-09 2005-09-22 Hsu, Hsia-Yuan, Daya Easy starting circuit for a single phase brushless dc motor has oscillating pulse generator and hall integrated circuit to sense rotor polarity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078152A (en) * 1996-01-10 2000-06-20 Papst-Motoren Gmbh & Co. Kg Bidirectional E.C. motor and method of operating the motor
US6204618B1 (en) * 1999-06-08 2001-03-20 Industrial Technology Research Institute Starting method for brushless DC motor and device for the same
DE202005009054U1 (en) * 2005-06-09 2005-09-22 Hsu, Hsia-Yuan, Daya Easy starting circuit for a single phase brushless dc motor has oscillating pulse generator and hall integrated circuit to sense rotor polarity

Also Published As

Publication number Publication date
GB0601172D0 (en) 2006-03-01
WO2007119094A2 (en) 2007-10-25

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