FAN SPEED LINEAR COMPENSATION METHOD

PROBLEM TO BE SOLVED: To provide a fan rotational speed linear compensation method capable of stabilizing fan rotational speed and ensuring the ease of design with respect to specifications of the fan rotational speed without increasing the cost of components. SOLUTION: In the fan rotational speed l...

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Bibliographische Detailangaben
Hauptverfasser:	LIN XIU-XING, RIN YUKO, LIN JAOCHING, CHU LIN, CENG BING-DA
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fan rotational speed linear compensation method capable of stabilizing fan rotational speed and ensuring the ease of design with respect to specifications of the fan rotational speed without increasing the cost of components. SOLUTION: In the fan rotational speed linear compensation method, a PWM signal is read out through IC at first and its compensation operation is performed to seek a compensation signal. Then, the compensation value is subtracted from or added to the compensation signal, and the obtained PWM signal after compensation shows lower parabola. In this way, based on the PWM signal after the compensation, the IC controls the rotational speed of the fan, and the rotational speed curve of the fan through compensation shows straight line and linear characteristics. COPYRIGHT: (C)2010,JPO&INPIT