Fan control circuit
US9883611B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2014 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Apr 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/206
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A fan control circuit drives and adjusts a rotation speed of a fan according to operating temperatures of a plurality of heat elements. The fan control circuit includes a plurality of temperature detection units, a temperature synthesizing unit, and a driving signal generation unit. Each of the temperature detection units respectively detects the operation temperature of each of the heat elements and outputs a temperature detection signal corresponding to each of the heat elements. The temperature synthesizing unit calculates and outputs mean temperature signals according to the plurality of temperature detection signals and a plurality of predetermined weighted values corresponding to the heat elements. The driving signal generation unit generates driving signals to the fan according to the mean temperature signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.