Battery charge balancing system having parallel switched energy storage elements
US6064178A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for balancing charge of a plurality of series-connected batteries includes alternately coupling each of a plurality of energy storage circuits across a respective one of the batteries and in parallel with each other. A charge balancing system comprises a plurality of series connected batteries and a plurality of energy storage circuits. The system also includes switching circuitry for alternately connecting each energy storage circuit across a respective one of the batteries and in parallel with each other. The switching circuitry can also be controlled to couple a plurality of the energy storage circuits across a relatively-highly-charged battery and then across a relatively-weakly-charged battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.