Multi-battery system for high voltage applications with proportional power sharing
US7944662B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 28, 2008 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-battery system comprises a circuit having a circuit positive terminal and a circuit negative terminal. At least two batteries are provided to combine to deliver required system power. The batteries are connected to a protection circuit, an energy storage device, a system output voltage sensor and a logic gate. The protection circuit generates a protection signal and the voltage sensor generates an enabling signal that are fed into the logic gate as true signals to generate a true control signal. The true control signal causes the energy storage device to discharge. The digital enabling signal for each of the circuits is time-shifted by a time “t” so that at any time one of the circuits is discharging and one of the at least two circuits is charging during said time “t”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.