Regenerative charging for portable electronic devices
US7081727B1 · kind B1 · utility
0Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2005 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jun 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a portable electronic device having a data-storage drive that employs a rotatable data-storage carrier, as the data-storage carrier undergoes spin-up and spin-down cycles when the data-storage drive is being accessed, the electronic device recaptures at least a portion of the kinetic energy of the rotating data-storage carrier during the spin-downs to generate electrical currents and use them to either charge the battery or reduce the battery drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.