Electrical device

Electronic ballast

Electronic ballast

Electronic ballast circuit for discharge lamps

Electronic ballast circuit for independently increasing the powe

Electronic ballast for discharge lamps

Electronic ballast for fluorescent lamps

Electronic ballast for fluorescent lighting system including a v

Electronic ballast high power factor for gaseous discharge lamps

Electronic ballast incorporating a clocked switching controller

Electronic ballast of high power factor for compact...

Electronic ballast of the high power factor-constant power type

Electronic ballast system having emergency lighting provisions

Electronic ballast system having emergency lighting...

Electronic ballast that manages switching frequencies for extrin

Electronic ballast with crest factor correction

Electronic ballast with high-frequency-aided power-factor-correc

Electronic ballast with interface circuitry for phase angle dimm

Electronic ballast with power-factor-correcting pre-converter

Electronic ballast with rail voltage switching