Electricity: motive power systems – Series motors – Field circuit control
Reexamination Certificate
2006-11-07
2006-11-07
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Series motors
Field circuit control
C318S246000, C318S250000, C318S249000, C318S521000
Reexamination Certificate
active
07132808
ABSTRACT:
A solid state series motor control includes first and secondFORWARD DRIVEelements, first and secondREVERSE DRIVEelements, first and second diodes, a current sensor, and a capacitance. The 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. TheFORWARD DRIVEelements andREVERSE DRIVEelements can be IGBTs or similar semiconductors. The current sensor is configured to measure current passing through the motor armature. The capacitance is a combination of a line filter and source impedance reduction for IGBT switching. The solid state series motor control can control the speed and direction of a series wound motor using solid state components while maintaining the series connection of the armature and the field winding.
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Thexton Andrew S.
Thexton Graham S.
Leykin Rita
Litman Richard C.
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