AC power system with redundant AC power sources
US6370048B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2001 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/906
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A redundant AC power system has at least two AC power sources, each of which includes an AC voltage supply connected to the primary winding of a source transformer. The source transformers have secondary windings with two outputs and a grounded center tap. There is a steering diode in series with each output. The redundant AC power sources supply power to one or more load systems. The output sides of the respective diodes for the two AC power sources are connected to the respective inputs of the primary winding of a load transformer with a pair of load-transformer primary inputs and a load-transformer primary center tap connectable to ground. A switch controllably connects the center tap of the load transformer to ground. A load is connected to the secondary winding of the load transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.