DC BALLASTER FOR MULTIPLE FLUORESCENT

摘要

PURPOSE: A DC stabilizer is provided to prevent the damage of an inverter circuit due to over current by including the overload protective circuit. CONSTITUTION: The X-number of lighting circuits is connected to one inverter circuit in parallel(3). A fluorescent lamp has a first and a second filament. One end of the first filament is connected to the output terminal of the inverter circuit. A first capacitor(Ca1) is connected between a overload detection point(VH) and a ground. A first reactor and a second capacitor(Ca2) are connected to both ends of the first filament. A second reactor and a third capacitor(Ca3) are connected to both ends of the second filament.