Electronic ballast with ignition and operation control

Electronic ballast with interface circuitry for multiple dimming

Electronic ballast with intermediate circuit regulation

Electronic ballast with inverter control circuit

Electronic ballast with lamp flash protection circuit

Electronic ballast with lamp run-up current regulation

Electronic ballast with lossless snubber capacitor circuit

Electronic ballast with open circuit voltage control and...

Electronic ballast with output control feature

Electronic ballast with overvoltage monitoring

Electronic ballast with phase dimmer detection

Electronic ballast with reduced operating frequency after...

Electronic ballast with selective load control

Electronic ballast with step up/down power factor correction...

Electronic ballasts for lighting systems

Electronic ballasts for plural lamp fluorescent lighting without

Electronic circuit for driving a diode load with a...

Electronic circuit for the gradual start-up of electric...

Electronic circuits

Electronic constant power ballast for arc lamps