Theoretically possible, but why? You can buy a speed controller with
soft start, dynamic braking, and dozens of features, that also converts
single phase to to 3 phase, for $200 or so. Why bother to make your
own, which will take many hours, might or might not work well, might or
might not fail catastrophically, and will never have all the features of
a commerical speeed controller?

Richard


Ignoramus17647 wrote:
I am thinking about my high capacity transistors. Supposedly they can
be used for making inverters.

What if I build something like this:

1) a 220V to 208 V transformer

fed into

2) a rectifier

fed into

3) three DC to AC inverters that have their outputs shifted by 120
degrees relative to one another.

Would that not become a phase converter (1 - 3 phase)?

i