Battery state monitoring circuit and battery device
US8471530B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2011 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a battery state monitoring circuit including: a charge/discharge control circuit for detecting and controlling a state of a secondary battery; an automatic recovery circuit; a temperature sensor circuit; and a comparator for comparing a voltage of an output terminal of the automatic recovery circuit and a voltage of the secondary battery, and outputting a signal indicative of a result of the comparison to the temperature sensor circuit, to control an operation of the temperature sensor circuit. The temperature sensor circuit operates only when the output of the automatic recovery circuit is larger, that is, only when a charger is connected between external terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.