Cascadable dual fan controller
US6950969B2 · kind B2 · utility
6Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A fan controller is described herein that can be connected to other fan controllers to provide fault information from one controller to the other(s). The fan controllers each control one or more fans. The controllers include signal(s) connected between the controllers that transmit fault information from one fan controller to the other(s) without the involvement of the host processor. Further, the controllers are capable of performing a “free wheeling” test in which idle fans are spun and tested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.