Battery charging system and methods
US7595607B2 · kind B2 · utility
9Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Dec 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining whether a battery is electrically and physically connected to a battery charger includes monitoring a battery charging voltage supplied by a battery charger that has superimposed a known signal on the battery charging voltage, and determining that the battery charger is connected when the known superimposed signal is present and that the battery charger is not connected when the known superimposed signal is absent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.