Integrated fan speed control and fault detection circuitry

The present invention relates to speed control and fault detection in fan assemblies. Aspects for integrating speed control and fault detection in a fan assembly are described. The aspects include a fan, a first circuit is coupled to the fan for regulating speed of the fan, and a second circuit coup...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Malik, Randhir S, Hemena, William
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to speed control and fault detection in fan assemblies. Aspects for integrating speed control and fault detection in a fan assembly are described. The aspects include a fan, a first circuit is coupled to the fan for regulating speed of the fan, and a second circuit coupled to the fan and to the first circuit for detecting a fault condition in the fan. A ripple regulator is integrated as the first circuit, and a pulse missing detector circuit is integrated as the second circuit.