Invention Application
US20070133957A1 Method of controlling speed of BLDC motor and method of controlling cooling speed of refrigerator using the same 审中-公开
控制BLDC电机转速的方法及使用其控制冰箱冷却速度的方法

Method of controlling speed of BLDC motor and method of controlling cooling speed of refrigerator using the same
Abstract:
A method of controlling the speed of a BLDC (brushless direct current) motor and a method of controlling the cooling speed of a refrigerator using the same. A method of controlling the speed of a BLDC motor includes: inputting a driving signal having a predetermined reference current applying angle to the motor to achieve a predetermined reference speed; measuring a rotating speed of the motor; increasing a current applying angle of the driving signal if the measured rotating speed does not reach the reference speed and the driving signal has reached a maximum input of the motor; and inputting the driving signal having the increased current applying angle to the BLDC motor.
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