Powerfactor correcting flyback arrangement having a resonant cap

Preconditioner having a digital power factor controller

Projector

Protection circuit for electronic ballasts which use charge pump

PWM illumination control circuit with low visual noise for...

Radio frequency electronic ballast with integrated power factor

Reactor-type ballast circuit

Reduced bus voltage integrated boost high power factor circuit

Ripple reduction method for electronic ballasts

Ripple reduction method for electronic ballasts

Single chip ballast control with power factor correction

Single driver for multiple light emitting diodes

Single stage PFC and power converter circuit

Solar powered lamp having an auxiliary startup device

Solid state electronic ballast system for fluorescent lamps

Suppressor for an electronic ballast in a discharge lamp

Switchable voltage converter

Transformerless xenon power supply

Two-frequency electronic ballast system having an isolated PFC c

Universal input voltage device