Protection apparatus and multi-lamp driving system using the...

Protection apparatus and multi-lamp driving system using the...

Protection circuit for electronic ballasts which use charge pump

Protection circuit for fluorescent lamp ballasts

Protective coating for high-intensity metal halide discharge lam

Protective coatings for light sources

Pulse circuit for gaseous discharge lamps

Pulse width modulation (PWM) closed loop LED current driver...

Pulse width modulation apparatus and apparatus for driving...

Pulsed high voltage radiography system power supply having a...

Pulsed illumination projector

Pulsed laser excitation source

Pulsed light source

Pulsed xenon arc lamp operating circuit

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

Quadrature-coupled microwave electrodeless lamp

Quench strobe with predetermined quench rate

Radiation emitting system with pulse width and frequency control

Radio frequency driven ultra-violet lamp

Radio frequency electronic ballast with integrated power factor