Battery state monitoring circuit and battery device
US7791315B2 · kind B2 · utility
3Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jan 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a battery state monitoring circuit and a battery device which are capable of normally operating when a charger (301) is connected to an opposite polarity in error, and then correctly connected. In the case where the charger (301) is connected to the opposite polarity in error and then correctly connected, a logic circuit (305) does not output a power-down signal that powers down the respective circuits to the respective circuits by the aid of a power-down preventing circuit (110). As a result, the battery device normally operates without falling into the power-down state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.