Battery cell balancing system
US6844703B2 · kind B2 · utility
22Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Apr 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0018
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A battery cell balancing system (12) for a battery (30) having a plurality of cells (32) is provided. The system (12) includes a power supply (38) and a plurality of transformer/rectifier circuits (34) electrically coupled to the cells (32). Preferential charging occurs for a cell with the lowest state of charge. At least one current limiting device (36) is electrically coupled to the transformer/rectifier circuits (34) and the power supply (38). The current limiting device (36) buffers a source voltage from a reflected voltage of at least one of the plurality of cells (32). A method of performing the same is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.