Method and apparatus for extending battery life in regulated voltage applications
US7471061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | May 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A technique is disclosed for more fully utilizing the full voltage range of a battery driven battery output voltage when the battery output voltage is provided through voltage regulation circuitry. More particularly, when the battery output voltage drops to a level that is insufficient to support the desired output of the voltage regulation circuitry, the battery output voltage may be coupled to the voltage output in a manner bypassing at least a portion of the voltage regulation circuitry. In this manner additional voltage range of the battery output voltage may be utilized while still maintaining an output voltage within a desired output voltage range. In one embodiment, such a technique may be utilized in an uninterruptible power supply system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.