Title: Method of controlling speed of bldc motor and method of controlling cooling speed of refrigerator using the same
Application Number: 200610165620 Application Date: 2006.12.08
Publication Number: 1980042 Publication Date: 2007.06.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02P6/06;H02P6/18;G05D23/19
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Oh Kwang-kyo;Hamaoka Koji;Yoo Han-joo;Park Pyeong-
Attorney & Agent: guohong xi liuyi qing
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.
Time: 8