Uninterruptible power supply with total isolation
US8036004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Oct 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An uninterruptible power supply includes an isolation transformer having dual primary windings. The secondary winding generates an output voltage based on the magnetic field generated in one of the dual primary windings. A first primary winding is coupled to an inverter circuit that receives an alternating current input voltage and applies a clean and filter alternating current to the first primary winding. A second primary winding is coupled to a bypass circuit that applies a bypass voltage when the inverter circuit is in a failure state. The power supply also includes a compensation circuit to maintain the output voltage at a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.