Method and apparatus for determining battery characteristics
US5411816A · kind A · utility
27Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Feb 10, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007194
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charging system (200) comprises a battery (206) and charger (202). Battery 206 includes a thermistor (112) for determining the temperature of battery (206) and a resistor (214), for informing charger (202) of the current capacity of battery (206). Charger (202) includes a transistor (220) for effectively switching between measuring thermistor (112) and resistor (214) at charger input terminal (240). This effectively reduces the number of battery and charger contacts required as compared to the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.