Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jian-Xuan Lee0
Date of Patent
February 13, 2007
Patent Application Number
10834924
Date Filed
April 30, 2004
Patent Primary Examiner
Patent abstract
The present invention is a brushless DC fan motor driving circuit, comprising a control unit, a Hall element, a temperature sensor with negative temperature coefficient, and a motor, as tied in with a plurality of resistors, capacitors, diodes and transistors. Accordingly, through sensing environment temperature by the temperature sensor and feeding back the temperature sensed to the motor to control the resolving speed, the ambient temperature of the system is maintained.
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