there's no info on how it's done, but rectification doesn't seem to be the way. All I could find on their site was this:
By eliminating the conventional process of transforming and rectifying the AC sine wave ...
"We discovered a way the physics of electricity can be managed digitally through silicon chips, which changes everything for how all electrical products and even silicon chip solutions are designed," Casey added. "Digitizing the AC sinewave is a profound breakthrough for building products because we can now use software and algorithms in a silicon chip to control every aspect of electricity"
Wonder what they're doing with the heat
You could probably rectify with a set of transistors rather than diodes given you can measure or predict where in the sine wave the current instant is but like you said its going to be low power or you will have to deal with the heat.
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