Power control arrangement, as for a flashlight
US7215084B1 · kind B1 · utility
22Cited by
50References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Apr 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a battery-operated apparatus comprising a load, a battery and a switch in circuit for selectively energizing the load: a comparator compares a potential produced by the battery and a reference potential for de-energizing the load when the battery potential is below a predetermined potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.