Method for detecting position of brushless direct current motor
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United States of America Patent
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-
Jul 16, 2002
Grant Date -
N/A
app pub date -
Nov 21, 2000
filing date -
Nov 30, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method for detecting position of a BLDC (Brushless Direct Current) motor which is capable of decreasing position detecting errors by detecting accurately a crossing time point of a back electromotive force and reference potential by using. a phase voltage outputted from the BLDC motor regardless of an ON/OFF operation of a PWM (Pulse Width Modufation) signal inputted to the BLDC motor, accordingly the present invention can stably operate the BLDC motor, lower power consumption and noise of an equipment installed the BLDC motor stably operating.
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