Temperature estimator for electronic device
US7280301B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Nov 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus which can provide a temperature estimate in a hard disk drive or other electronic device is provided. Output from the sensor, which may be indicative of a location spaced from the target temperature location, is sampled and integrated over an interval of time to form an estimate of average input sensor voltage. During the time interval, history of the HDD pre-amplifier operating modes is accumulated. The results are combined to form an estimate of HDA ambient temperature. Sensor offsets associated with each power mode, and weighted to the corresponding mode duty, can be subtracted from the average input sensor voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.