Patent ID: 7132808

Claim:
A solid state series motor control comprising: first and second FORWARD DRIVE elements; first and second REVERSE DRIVE elements; wherein said FORWARD DRIVE elements and REVERSE DRIVE elements are insulated gate bipolar transistors (IGBTS) each having an emitter, gate and a collector; first and second diodes; a current sensor; and a capacitance; wherein the collector of the first FORWARD DRIVE IGBT is interconnected to a motor armature, the emitter of the first FORWARD DRIVE IGBT and the collector of the second REVERSE DRIVE IGBT is interconnected to the first diode, the emitter of the first REVERSE DRIVE IGBT and the collector of the second FORWARD DRIVE IGBT is interconnected to the second diode, the current sensor is interconnected to the motor armature and the first and second diodes, and the capacitance is interconnected to the first and second diodes, the current sensor, and the emitters of the second FORWARD and REVERSE DRIVE IGBTs wherein said series motor control is configured to be interconnected with controlling logic or a processor, the field and armature of a series wound motor, and an external DC power source.