Circuits and methods for cell number detection
US8618806B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jul 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit used for determining a cell number of several battery cells. The circuit includes a detection block and a controller, and operates in a first detection mode and a second detection mode. The detection block is coupled to each of the battery cells. In the first detection mode, the detection block provides a terminal voltage signal indicative of a terminal voltage of a battery cell. In the second detection mode, the detection block provides a cell voltage signal indicative of a cell voltage of the battery cell. The controller compares the terminal voltage signal with a first threshold in the first detection mode and compares the cell voltage signal with a second threshold in the second detection mode, and provides a cell count signal indicative of the cell number based on the terminal voltage signal and the cell voltage signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.