Charge and discharge control circuit and battery device
US8072189B2 · kind B2 · utility
5Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a charge and discharge control circuit capable of reducing a circuit size, and a battery device. In a charger reverse connection detection circuit (116), a comparison circuit or the like is not used, and two NMOS transistors are used, whereby circuit sizes of the reverse connection detection circuit (116) and a charge and discharge control circuit (110) are reduced. Accordingly, a consumption current is reduced, and a manufacturing cost is also reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.