http://www.kilowattclassroom.com/Archive/VFDarticle.pdf I found this useful in understanding how a VFD drive can run a 3-phase motor.
The diagrams show a dc supply, so the single-phase needs a rectification/smoothing stage?
Q.How much would one of these units cost, ballpark, for, say, a 5hp motor application, between single phase supply and motor starter?
Alan
