hi guys, am working on variable speed drive system. My aim is to make a low cost drive system for three phase induction motor. Current system employs three phase AC-DC and DC-AC converters, which has 12 switches in total. I have one idea...i found three phase inverter topology which has 4 switches. If i incorporate 4 switch inverter topology with single phase rectifier bridge, then i have 8 switches. am using three phase motor. My doubt is (1)will it be possible to drive the motor with single phase supply?...and (2)will motor be able to draw power equivalent to three phase supply?...(3) how reliable is that?