Electric tool powered by a plurality of battery packs and adapter therefor
US8813866B2 · kind B2 · utility
1,228Cited by
76References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2010 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Sep 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power tool is powered by a plurality of battery packs connected in series. The electric power tool comprises a controller configured to receive signals outputted from the integrated circuits located in each of the battery packs. A first voltage level-shifter is disposed between the controller of the electric power tool and one of the integrated circuits of the battery packs. The first voltage level-shifter is configured to shift the voltage level of the signal outputted from the respective integrated circuit to the tool controller to an acceptable level for the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.