Safety control circuit for detecting the removal of lamps from a

Sample and hold method to achieve square-wave PWM current...

Scheme for sampling lamp conditions during ignition and...

SCR lamp supply

SCR Lamp supply trigger circuit

Selective illumination

Self oscillation circuits

Self-ballasted fluorescent lamp and lighting apparatus

Self-calibrated integration method of light intensity...

Self-contained, self-snubbed, HID dimming module that...

Self-contained, self-snubbed, HID dimming module that...

Self-contained, self-snubbed, HID dimming module that...

Self-dimming electronic ballast

Self-heating type cold-cathode discharge tube control apparatus

Self-learning lighting system

Self-oscillating dimmable gas discharge lamp ballast

Self-oscillating electronic discharge lamp ballast with...

Self-regulating, no load protected electronic ballast system

Semiconductor circuit for driving light emitting diode, and...

Semiconductor-controlled operating circuit for one or more low-p