Charge control circuit and charge controlling semiconductor integrated circuit
US8450982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2009 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007192
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge control circuit equipped with a function of controlling a charging current to be supplied to a secondary battery, comprises: a detecting unit for monitoring a temperature; and a charge control unit for controlling so as to break the charging current when the monitored temperature rises to a temperature equal to or more than a predetermined set temperature, decrease the charging current as the monitored temperature becomes higher when the monitored temperature is in a predetermined temperature range lower than the set temperature, flow the charging current having a predetermined current value in a state where the monitored temperature is lower than a lower limit temperature of the temperature range, or flow the charging current having a current value smaller than the current value when the monitored temperature is within a range of from an upper limit temperature of the temperature range to the set temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.