Variable duty cycle traction motor control providing...

Variable duty-cycle chopper control system

Variable motor speed control for automatic washer

Variable output rotary power generator

Variable reluctance linear stepper motor

Variable resistance speed control system using a governor

Variable speed constant frequency synchronous electric power...

Variable speed control of multiple motors

Variable speed control switch for an electric tool including...

Variable speed control, stall detection and response system

Variable speed control, stall detection and response system

Variable speed drive for a chiller system with a switched...

Variable speed drive system

Variable speed electric machine having controlled magnetic...

Variable speed electric motor system

Variable speed electronic motor and the like

Variable speed generator-motor apparatus

Variable speed generator-motor apparatus capable of...

Variable speed hoist

Variable speed latching motor control