Temporal voltage adaptive lithium battery charger
US9287727B1 · kind B1 · utility
183Cited by
435References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | May 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00309
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods comprise setting a digital-to-analog converter of a charger to a set voltage. The set voltage is a maximum voltage allowable for a battery type. An output voltage of the charger is determined when the charger is operating at the set voltage. An offset voltage is determined by comparing the output voltage to the set voltage. A cutoff voltage of a battery is determined using the offset voltage and the open circuit voltage. Charger voltage is adaptively adjusted in response to the cutoff voltage, and the adjusting prevents an over potential to the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.