Circuit and associated method for reducing power consumption in a power transformer
US7852645B2 · kind B2 · utility
12Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Dec 3, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and circuit is provided for reducing power consumption in a power transformer, typically incorporated into an electrical or electronic device such as a consumer device. In an embodiment, a detection/isolation circuit is coupled to an input of a power transformer/rectifier via a switching device. The switching device can be, for example, a solid state relay. The detection/isolation circuit is configured to sense the occurrence of no-load conditions in the power transformer and responsively disengage the power transformer from a coupled source of power (e.g., wall outlet) via the coupled switching device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.