Energy economizing AC power system
Energy efficient multi-phase dual voltage electric motor
Energy saver control for single phase motors
Energy saving motor speed controller
Energy saving system for larger three phase induction motors
Engine starting system utilizing multiple controlled acceleratio
Enhanced polyphase motor operation using a solid state inverter
Enhanced traction system for trolleybuses, powered from a 600-vo
Equipment for the electronic speed control of an induction type
Escalator passenger flow control
EV drivetrain inverter with V/HZ optimization
Excitation commanding for current fed motor drives
Excitation current control for induction motor drive using load
Fail-safe control apparatus for electric vehicle driving motor
Fail-safe regulator biasing circuit
Failure detector for regeneration power absorbing means
Fan cooler
Fan motor brown-out control algorithm
Fan motor control system
Fan motor speed control circuit, fan apparatus, and...