Apparatus for feeding discharge lamps from a direct current sour
Apparatus for operating HID lamp at high frequency with high pow
Ballast circuit for gaseous discharge lamps without inductive el
Ballast circuit for high intensity discharge (HID) lamps
Ballast circuit having electromagnetic interference (EMI) reduci
Circuit arrangement for operating a low-pressure discharge lamp,
Circuit for starting and ballasting arc discharge lamps
Circuit for the operating of gas discharge lamps
Compact fluorescent lamp with improved power factor
Control system for providing power to a gas discharge lamp
Controllable gas discharge lighting system
Controlled power-factor-corrected ballast
D.C. Voltage fluorescent lamp
DC Ballasting means for fluorescent lamps
DC Power supply for high power discharge devices
Decorative lighting string with stacked rectification
Dielectric barrier discharge lamp lighting device
Direct current ballasting and starting circuitry for gaseous dis
Discharge lamp operating circuit
Discharge lamp operating circuit