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AssigneesLegrand, Legrand SNC
InventorDidier Leblanc
Estimating the term…
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.
A method of supplying power to a load via a power modulation system including at least one controlled switch adapted to operate in either of two operating modes, namely a “reverse phase control” mode and a “forward phase control” mode, wherein said power modulation system is switched on in said “reverse phase control” mode, said load is supplied with power via said power modulation system, which is commanded to operate under predetermined low-load operating conditions, and then, when said low-load operating conditions are established, overvoltages are detected during a given period and said power modulation system is caused to change to said forward phase control mode if an excessive number of overvoltages is detected during said given period.
A device for supplying power to a load, including a power modulation system including at least one controlled switch and means for selecting a “reverse phase control” or “forward phase control” operating mode of said power modulation system, an overvoltage detector, control means for imposing predetermined low-load operating conditions on said power modulation system in said “reverse phase control” mode, overvoltage analysis means connected to said overvoltage detector and control means for changing the operating mode of said power modulation system.
A method of supplying power to a load via a power modulation system, comprising the sequential steps of:
Dependencies are inferred from the claim text.