Shorted lamp detection in backlight system

Shutdown circuit

Signal generating circuit for ballast control of discharge lamps

Simplified topology for HID lamps

Sinewave dimmer control method

Single-wired switching circuit directed to limit surge into lamp

Smoothing circuit for improving EMC

Soft start control circuit for lighting

Soft starter device for lamps

Software controlled electronic dimming ballast

Solid state ballast for high intensity discharge lamps

Solid state ignitor

Solid state lighting panels with variable voltage boost...

Solid state regulated power supply system for cold cathode lumin

Solid state tail light for aircraft

Solid-state ballast for fluorescent lamp with multiple dimming

Spectrally calibratable multi-element RGB LED light source

Starter circuit with a safety switch

Starting and operating circuit for ARC discharge lamp

Starting circuit for electric discharge lamp