| 摘要 |
A method of and system for controlling a brushless direct current (BLDC) motor includes providing with a lookup table a predetermined corresponding desired revolution time (DRT) for the BLDC motor for an ambient temperature. A Hall device is used to measure an actual revolution time (RT) of the BLDC motor. DRT and RT are compared to change duration of a pulse width modulation (PWM) signal in response to the comparison result. The PWM signal is applied to one of two BLDC motor windings.
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