Power supply fan speed algorithm to prevent air re-circulation
US11758684B1 · kind B1 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Oct 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20745
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system improve the cooling of computer power supply unit by eliminating a reverse flow of hot air caused by an imbalance in airflow between a power supply fan and a system fan. The method determines a correlation between a system fan speed and a heightened power supply fan speed that prevents the reverse flow of hot air into the power supply unit. During the operation of the power supply unit, the system fan speed is obtained and the heightened power supply fan speed is determined from the correlation. The power supply fan is then controlled using the heightened power supply fan speed setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.