Battery pack charging apparatus and method for constant current and constant voltage charging of multiple battery packs
US7782011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging apparatus for charging a plurality of detachable battery packs includes a charging device for charging the plurality of battery packs one after another. A monitoring device is included to monitor attachment of a battery pack. A memory is included to store attachment history data of a battery pack based upon a monitoring result. A switching device is included to switch from one of the battery packs to the next battery pack. A voltage detecting device is included to detect a voltage of the next battery pack before charging. A charging manner setting device is included to set any one of constant current charging and constant voltage charging in accordance with the detected voltage. A charge current detecting device is also included to detect a current during charging of the next battery pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.