Efficient resonant self-heating battery electric circuit
US6072301A · kind A · utility
59Cited by
7References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 20, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Oct 20, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for heating an energy storage device is disclosed. The circuit includes a switching device having a closed state and an open state. The circuit also includes a storage circuit for storing energy. The storage circuit has a resonating frequency. A controller is provided for operating the switching device. In operation, energy is transferred from the energy storage device to the storage circuit while the switching device is in the open state, and returned from the storage circuit to the energy storage device while the switching device is in the closed state. This energy transfer causes warming of the energy storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.