SINGLE-KEY ELECTRIC DRIVE Russian patent published in 2012 - IPC H02K29/00 H02P6/00 H02P25/08 H02K19/06 

FIELD: electricity.

SUBSTANCE: in a single-key electric drive a DC voltage source consists of two independent voltage sources (1) and (2), at the same time the plus of a source (1) is connected to the plus of a capacitor (3), with the start of a part (4) of a winding and a cathode of a diode (5). The minus of the source (1) is connected with the first output of a semiconductor key (6), with the minus of the capacitor (3) and with the start of a part (7) of the winding. The plus of a source (2) is connected to the second output of the semiconductor key (6), with the plus of a capacitor (8) and the end of the part (4) of the winding. The minus of the source (2) is connected with the minus of the capacitor (8), the end of the winding part (7) and the diode (5) anode.

EFFECT: higher reliability of an electric drive by elimination of asymmetry of supply to parts of a stator winding in a valve-inductor motor.

2 cl, 2 dwg