Uninterruptible power supply with low power loss
US8008807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Mar 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An uninterruptible power supply includes an energy storage unit, an AC-to-DC converting circuit, a charging circuit, a selection circuit, a primary detecting circuit, a primary control circuit and a secondary control circuit. The primary detecting circuit is connected to an output loop of the uninterruptible power supply for detecting an operating status of the uninterruptible power supply and issuing a corresponding operating message. The primary control circuit is connected to the primary detecting circuit and the selection circuit for controlling operations of the uninterruptible power supply. The secondary control circuit is connected to the primary detecting circuit, the selection circuit and the primary control circuit for controlling operations of the uninterruptible power supply. The primary control circuit and the secondary control circuit are enabled or disabled according to the operating message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.