초록 ▼

For use in a power converter having a rectifier coupled to an output thereof, a snubber circuit including an energy storage device coupled to the rectifier that moderates a voltage across the rectifier and a method of moderating the voltage. In one embodiment, the snubber circuit includes: (1) a fir

For use in a power converter having a rectifier coupled to an output thereof, a snubber circuit including an energy storage device coupled to the rectifier that moderates a voltage across the rectifier and a method of moderating the voltage. In one embodiment, the snubber circuit includes: (1) a first switch that regulates a voltage across the energy storage device, (2) an inductor, coupled to the first switch, that provides a discharge path for energy stored in the energy storage device when the first switch is conducting and (3) a second switch that recovers energy stored in the inductor to the output when the first switch is not conducting. The snubber circuit thereby reduces voltage stress across the rectifier during a current limit mode of operation.

대표청구항 ▼

[ What is claimed is:] [1.] For use in a power converter having a rectifier coupled to an output thereof, a snubber circuit including an energy storage device coupled to said rectifier that moderates a voltage across said rectifier, said snubber circuit comprising:a first switch that regulates a vol

[ What is claimed is:] [1.] For use in a power converter having a rectifier coupled to an output thereof, a snubber circuit including an energy storage device coupled to said rectifier that moderates a voltage across said rectifier, said snubber circuit comprising:a first switch that regulates a voltage across said energy storage device;an inductor, coupled to said first switch, that provides a discharge path for energy stored in said energy storage device when said first switch is conducting; anda second switch that recovers energy stored in said inductor to said output when said first switch is not conducting, said snubber circuit thereby reducing a voltage stress across said rectifier during a current limit mode of operation.