Small highly accurate battery temperature monitoring circuit
US8864373B2 · kind B2 · utility
4Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.