Detection of the state of the elements of an electric branch comprising a load and a switch
US8461845B2 · kind B2 · utility
1Cited by
13References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 23, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Aug 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for detecting the state of at least one element of a circuit comprising one or several loads, powered by an A.C. voltage and in series with at least one first switch. The state of the element is obtained by analyzing, at several times in a period of the A.C. voltage, the amplitude of a current sampled from the junction point of the load and of the first switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.