Patent ID: 11859627
Assignee: ASUSTEK COMPUTER INC.
Field: Computer technology (Electrical engineering)
Classification: CPC F  G  H  Y | IPC F

Claim 0:
1. A fan control system, comprising:
a fan;
a first temperature sensor, continuously sensing temperatures of a device during a time period and obtaining a plurality of sampled temperatures;
a calculating circuit, selecting N1 latest sampled temperatures and N2 latest sampled temperatures from the sampled temperatures, and calculating a first average temperature according to the N1 sampled temperatures and a second average temperature according to the N2 sampled temperatures, wherein N1 and N2 are positive integers, the positive integer N1 is greater than 0, and the positive integer N2 is greater than the positive integer N1;
a logic controller, configured to select one of the first average temperature and the second average temperature according to one of a plurality of determination modes to output as a compensation temperature, wherein the determination modes comprise:
(a) selecting the first average temperature;
(b) selecting the second average temperature;
(c) selecting a larger one of the first average temperature and the second average temperature; and
(d) selecting a smaller one of the first average temperature and the second average temperature; and
a memory circuit, configured to store an operating table, and configured to output a rotational speed control signal to the fan corresponding to the operating table according to the compensation temperature.