发明名称 |
ROTATION DIRECTION CONTROL METHOD FOR A COOLING FAN AND ROTATION DIRECTION CONTROL CIRCUIT THEREOF |
摘要 |
A rotation direction control method of a cooling fan is disclosed. The rotation direction control method includes a detection step, a determination step and a driving step. The detection step receives a temperature control signal from a temperature detection unit by a rotation direction control unit when a predetermined dust-expelling time period begins. The determination step determines whether a detected temperature is higher than a predetermined value based on the temperature control signal by the rotation direction control unit. The driving step controls the rotation direction control unit to keep outputting a cooling signal so as to drive a motor of the cooling fan for a cooling operation when the determination of the determination step is positive. |
申请公布号 |
US2012086379(A1) |
申请公布日期 |
2012.04.12 |
申请号 |
US20100965306 |
申请日期 |
2010.12.10 |
申请人 |
HORNG ALEX;HUNG CHING-SHENG |
发明人 |
HORNG ALEX;HUNG CHING-SHENG |
分类号 |
G05D23/19 |
主分类号 |
G05D23/19 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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