Method and apparatus to perform poly-phase instrumentation with single-phase instruments
US6839645B2 · kind B2 · utility
1Cited by
4References
21Claims
0Family size
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Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jan 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating a poly phase signal set from a single signal output of a single phase instrument. The method comprising: generating a first signal output X representing the single signal output; processing the single signal output to generate a time delayed version Y_Raw of the single signal output by a time delay T; and processing the time delayed version Y_Raw to compensate for frequency changes in the single signal output and generating a second signal output Y of the poly phase signal set. The second signal output Y is displaced from the first signal output X by about 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.