Invention Grant
- Patent Title: Method of optimizing drive frequency for piezo fan device
- Patent Title (中): 优化压电风扇装置的驱动频率的方法
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Application No.: US11366644Application Date: 2006-03-02
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Publication No.: US07804222B2Publication Date: 2010-09-28
- Inventor: Charles D. Hood
- Applicant: Charles D. Hood
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Haynes and Boone, LLP
- Main IPC: H01L41/09
- IPC: H01L41/09
Abstract:
For tuning a piezo electric fan, a controller measures a natural frequency of the piezo electric fan by applying a stress and measuring a response to the stress. A frequency of an alternating current (AC) input signal is adjusted by the controller to substantially match the natural frequency. The adjusted AC input having the natural frequency is provided to the piezo electric fan for improved efficiency.
Public/Granted literature
- US20070205694A1 Method of optimizing drive frequency for piezo fan device Public/Granted day:2007-09-06
Information query
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