Rechargeable battery charging method and apparatus
US5637979A · kind A · utility
25Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1996 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jan 18, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plurality of series connected rechargeable batteries are charged by detecting battery voltages and controlling charging current. Normal charging is performed until any one battery voltage reaches a prescribed voltage. After any one battery voltage reaches the prescribed voltage, all batteries are charged such that a charging current is controlled to keep each battery voltage from exceeding the prescribed voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.