System and method for controlling an electronic device fan
US8606429B2 · kind B2 · utility
2Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2010 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jul 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/28
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic device and a method for controlling fan speed of the electronic device include setting a speed range corresponding to a variety of pulse-width modulation (PWM) duty cycles of the fan, and setting a speed variation value of the fan. The method further includes reading the PWM duty cycle and detecting an actual speed of the fan, and adjusting the PWM duty cycle in the PWM duty cycle instruction according to the speed variation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.