Charging apparatus and charging method
US8305038B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Dec 28, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention aims to reliably prevent overcharge by carrying out charging in just proportion during charging periods.A charging apparatus 1 for charging a secondary cell 22 by supplying a charging current Ic thereto is provided with a discharge amount detector 62 for detecting an amount of power discharged from the secondary cell in a non-charging state, a charge amount detector 60 for detecting an amount of power charged into the secondary cell in a charging state, and a charger controller 10 for stopping charging when the amount of charged power (charge amount Wc) becomes equal to the amount of discharged power (discharge amount Wc) during a charging period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.