Circuit and method for sharing current between a portable device and a battery charger
US6157173A · kind A · utility
11Cited by
10References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 27, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Jan 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power accessory for apportioning electrical current between an electronic device and a rechargeable battery used in connection with the device includes two current limiting circuits. The first current limiting circuit limits the current supplied to the device to the peak current that device may demand. Any remaining current from the first current limiting circuit is passed through the second current limiter to the recharge the battery based on a charging algorithm. When the battery is fully charged, the second current limiting circuit stops providing current to the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.