Patent ID: 8890462

Claim:
A stepper motor assembly comprising: a unipolar winding stepper motor comprising a first coil part having a first wire end, a second coil part having a second wire end, a third coil part having a third wire end, and a fourth coil part having a fourth wire end; a first driver having a first transistor connected to the first wire end, the first driver operable to drive a first phase of the stepper motor; a second driver having a second transistor connected to the second wire end, the second driver operable to drive a second phase of the stepper motor, the second phase being opposite the first phase; a third driver having a third transistor connected to the third wire end, the third driver operable to drive a third phase of the stepper motor; a fourth driver having a fourth transistor connected to the fourth wire end, the fourth driver operable to drive a fourth phase of the stepper motor, the fourth phase being opposite the third phase; a transmission control module housing the first, second, third, and fourth transistors, and a first center wire connected to the first and second coil parts and a second center wire connected to the third and fourth coil parts; and wherein each of the transistors is a metal-oxide-semiconductor field-effect transistor, MOSFET.