Patent ID: 8080970
Filing Date: 2011-12-20
Classification: H02P

Abstract:
1. A method of using an 3-phase AC motor in a vehicle comprising: wiring a separate capacitor in series with each phase winding of a 3-phase motor resulting in a free capacitor end and a free winding end; attaching said free winding end for each phase into a center contact of a first SPDT switch for each winding; attaching said free capacitor end for each phase into a center contact of a second SPDT switch for each winding; attaching a high DC voltage across outer pole contacts of said first and second SPDT switch for each winding; directly coupling together inner pole contacts of said first and second SPDT switch for each winding; wherein, in a first switched position, said first and second SPDT switches connect said free capacitor end and said free winding end to said high DC voltage, and in a second switched position, said first and second SPDT switches connect said free capacitor end and said free winding end together forming a resonant circuit; switching said center contacts for each of said phases from said first switched position to said second switched position at a predetermined periodic rate; wherein, said phases are switched in a 3-phase sequence.