Controlled power fade for battery powered devices
US9071069B2 · kind B2 · utility
7Cited by
72References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Feb 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is provided for operating a power tool having a motor powered by a battery. The method includes: delivering power from the battery to the motor in accordance with an operator input; detecting a condition of the power tool indicating a shutdown of the power is imminent; and fading the power delivered from the battery to the motor, in response to the detected condition, through the use of a controller residing in the power tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.