Multi-path power factor correction

1. A method of multi-path power factor correction, comprising:

providing a plurality of energy transfer paths from a voltage-varying input to an output;

delivering a first fraction of available input energy to one or more energy storage networks at the input of at least one of the plurality of energy transfer paths;

delivering a second fraction of available input energy to the output; and

adjusting the first fraction and second fraction for facilitating outputting a substantially constant output and for controlling the energy drawn from the input.

2. The method of claim 1 , wherein controlling includes controlling a VHF power converter comprising the plurality of energy transfer paths.

3. The method of claim 1 , wherein a portion of the plurality of energy transfer paths comprises a plurality of soft-switched power converter cells.

4. The method of claim 3 , wherein power factor correcting includes switching at least one of the soft-switched power converter cells.

5. The method of claim 1 , wherein switching produces unity power factor.

6. The method of claim 1 , wherein a portion of the plurality of energy transfer paths comprises a plurality of soft-switched stacked-cell power converters.

7. The method of claim 6 , wherein a portion of the stacked-cell power converters is connected to a common node.

8. The method of claim 1 , wherein the method is performed using a power converter that operates at a frequency above 5 MHz.