Examination of dimming range with the simulation cathode heated analysis

Abstract

In recent years, the cathode design of a fluorescent lamp in consideration of dimming is becoming important with the energy-saving intention. In this report, with double circular fluorescent lamp 85W type, we examined the optimum dimming range by simulations and experiments. First, we guess that the cathode obtain good emission by carrying out simple modeling of the filament and by the search for the relation of current control preheated (CCP) between filament temperature. Next, by this result, we confirm the cathode in conditions 1-9. By these examinations, it was able to narrow down the optimum dimming range of the 85W type. From now on, this method will be expected as searching for dimming range of high frequency fluorescent lamps and as designing cathode in consideration of dimming.