Lithium ion fast pulse charger
US6040684A · kind A · utility
33Cited by
22References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium-ion cell charging system wherein pulse charging (with excursions above the critical voltage) is followed (once average current has fallen low enough) by charging in a linear regulator mode, using a transistor internal to a battery pack as an element of a linear regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.