Electric energy storage device with cell energy control, and method of controlling cell energy
US6538414B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Jul 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy adjusting device is provided which transfers energy charged in an arbitrary cell to the input/output terminals of a unit energy storage device. The energy adjusting device includes a transformer having a plurality of primary coils and a secondary coil mutually coupled magnetically but electrically insulated, switching circuits which open and close the circuits of the primary coils of the transformer connected to the arbitrary cell, a circuit connecting the secondary coil of the transformer via a rectifying circuit to the input/output terminals of the unit energy storage device, and a control circuit which, by operating the switching circuits, adjusts the amount of energy stored in the cells to a specific ratio with respect to the amount of energy stored by the unit energy storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.