Vehicle electrical power back-up circuit and method
US6177737A · kind A · utility
93Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle electrical back-up circuit and method. Vehicle electrical devices normally receive the power required for their operation from a vehicle electrical system at a first voltage. An auxiliary storage battery is provided at a second, lower voltage. Preferably, charge is maintained in the battery by a charging circuit powered by the vehicle electrical system. A voltage booster circuit boosts the second voltage of the auxiliary storage battery back to the first voltage, providing auxiliary electrical power available for operating the electrical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.