Phase correction for series-resonant ballasts

Photographic flash apparatus

Photographic flash apparatus with multiple units

Photographic flash device

Photographic flash device

Photographic flash unit

Pick-up unit for balancing rotating bodies

Portable power converter pack

Power feedback power factor correction scheme for multiple...

Power management device for large electronic flash units

Power saving device for electronic flash

Power source circuit for a flash discharge lamp

Power supply circuit for a gaseous discharge tube device

Power supply circuit for flash discharge tube

Power supply circuit for flash discharge tube

Power supply for a flash tube

Power supply for discharge lamp

Power supply for discharge lamps with balanced resonant circuit

Power supply for flash lamp

Power supply for intermittently operated loads