Charging apparatus with a compensation circuit
US5557192A · kind A · utility
50Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1994 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Aug 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The charging time for rechargeable batteries which require constant voltage charging is reduced by compensating for IR losses in the battery pack circuitry. A voltage detection circuit measures battery pack terminal voltage and a charging control circuit insures that battery voltage does not exceed a reference voltage. The system is improved by a compensation circuit which at least compensates for resistance in circuitry other than the rechargeable battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.