SYNCHRONOUS-STEP MOTOR OF HIGHER TORQUE Russian patent published in 2014 - IPC H02P8/12 H02P8/14 

FIELD: electricity.

SUBSTANCE: each semiconductor switch of a control unit comprises four transistors, two couples of serially-parallel connected ones. At the same time in each of semiconductor switches the common point of connection of the emitter in one transistor and the collector of the other transistor in one couple of serially connected transistors is connected to the beginning of the appropriate control winding, and the common point of emitter connection in one transistor and collector connection in the other transistor in the second couple of serially connected transistors is connected to the end of the appropriate control winding. Emitters of other transistors are connected to a plus of a DC source, and collectors of other transistors are connected to a minus of a DC source. All control windings are connected at each stroke.

EFFECT: increased torque developed by motor at the same value of supply voltage, control of torque value developed by a motor.

15 dwg