Electronic ballast having valley frequency modulation for a...
Electronic ballast suitable for lighting control in...
Electronic ballast system
Electronic ballast system with dual power and dimming...
Electronic ballast that is controlled by the operation of a...
Electronic ballast that monitors direct current through lamp fil
Electronic ballast with automatic restarting
Electronic ballast with continued conduction of line current
Electronic ballast with DC output flyback converter
Electronic ballast with lamp current correction circuit
Electronic ballast with low frequency AC to AC converter
Electronic ballast with preheating and dimming control
Electronic ballasts
Electronic ballasts with current and voltage feedback paths
Electronic circuit and method of supplying energy to a...
Electronic circuits for detecting filament breakage in gas...
Electronic device for powering a gas discharge road from a low f
Electronic dimming ballast feedback control scheme
Electronic dimming methods for solid state electronic ballasts
Electronic flashlight