An electronic ballast for powering a cold cathode fluorescent lamp of an electronic
display device comprising: a rectifier coupled to a source of AC power for producing
a rectified DC output voltage, a power factor correction circuit receiving the
rectified DC output voltage and providing an increased voltage DC bus voltage,
an electronic switching circuit comprising at least one electronic switch for switching
the DC bus voltage to provide a switched voltage for driving a cold cathode fluorescent
lamp, the switched voltage being provided to the lamp through an output stage comprising
a resonant LC circuit; and an electronic ballast control circuit for controlling
a switching operation of the electronic switching circuit, the electronic ballast
being provided in a housing for the electronic display device.