DocumentCode
1033558
Title
A full-wave motor drive IC based on the back-EMF sensing principle
Author
Bahlmann, J.P.M.
Author_Institution
Philips Consumer Electron., Eindhoven
Volume
35
Issue
3
fYear
1989
fDate
8/1/1989 12:00:00 AM
Firstpage
415
Lastpage
420
Abstract
A bipolar IC has been designed which allows full-wave driving of brushless three-phase DC motors. The three push-pull power stages operate in a switching mode. The commutation moments are directly derived from the zero-crossings of the back-EMF (electromotive force) in the floating motor windings. A start-up system will generate communications when no zero-crossing can be detected. A highly accurate tach-signal is defined by the EMF zero-crossings. This IC offers the possibility of accurate full-wave motor-driving without extra sensors in the motor
Keywords
DC motors; bipolar integrated circuits; driver circuits; electric potential; back-EMF sensing principle; bipolar IC; brushless three-phase DC motors; commutation moments; electromotive force; floating motor windings; full-wave motor drive IC; push-pull power stages; start-up system; switching mode; tach-signal; zero-crossings; Bipolar integrated circuits; Brushless DC motors; Brushless motors; Coils; Commutation; Consumer electronics; DC motors; Delay; Motor drives; Voltage;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.44298
Filename
44298
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