Converter device for an uninterruptible power supply
US8913410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jun 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/48
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter device for an uninterruptible power supply, the device having first and second main switching units connected to first and second voltage lines of a first type and each equipped with a first main switch; a main switching point connected to a voltage line of a second type and connected to the first and second main switching units; and a third main switch common to the first and second main switching units, and connected between the main switching point and a third voltage line of the first type; first, second and third capacitors connected between the main switching point and each of the first, second and third voltage lines of the first type; a first auxiliary switching unit connected by individual auxiliary switches between the first and second voltage lines of the first type, and a first auxiliary switching point; a second auxiliary switching unit connected between the first, second and third voltage lines of the first type, and a second auxiliary switching point; and a transformer having windings each having one free end and one end connected to the main switching point, with the free ends respectively connected to the first and second auxiliary switching points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.