Slip energy recovery control system using hybrid inverter to...

Slip frequency control for variable speed induction motors

Slow start-stop motor control system

Smooth series parallel transition for dual winding traction...

Soft starting device for motors

Soft turn-off controller for switched reluctance machines

Softstarter device and method to control the softstarting of...

Solenoid driver circuit

Solid state circuit controlled three phase reversing starter

Solid state motor starter

Solid state motor starting control

Solid state overload relay circuit

Solid state overload relay transformer circuit

Solid state switch protected three phase motor reversing...

Solid state voltage regulated automotive-type electrical...

Solid-state sensing and control transit car door system

Sparkless circuit for low hp electronic motor brake

Specimen processing and analyzing systems with variable...

Speed and mode control for a blender or the like

Speed and phase control system