Method of and device for supplying electrical power to a load using a power modulation system including at least one controlled switch and overvoltage counting apparatus
US6813720B2 · kind B2 · utility
68Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The operating mode of a power modulation system is determined according to the nature of the load. The power modulation system can operate in either of two operating modes, namely a “reverse phase control” mode and a “forward phase control” mode. To this end, the load is supplied with power under predetermined low-load operating conditions by the power stage in the “reverse phase control” mode, overvoltages are detected and the power modulation system is caused to change to the “forward phase control” operating mode if an excessive number of overvoltages is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.