DIMMING CONTROLLER OF AN ELECTRONIC BALLASTING FOR FLUORESCENT LIGHT LAMP AND METHOD THEREOF

摘要

According to the present invention, a fluorescent lamp is provided to perform lighting through a preheating period when a fluorescent lamp is turned on, and to supply a lamp having a predetermined magnitude to maintain a preset dimming level state after a very short time when the discharge is started, thereby lighting the lamp at a low low level. The present invention relates to a dimming control device and a lighting control method for a ballast, comprising: a preheat current control unit providing a ballast control unit with a first control input for supplying a preheat current to the lamp during a preheating period when the lamp is turned on; and a short time for starting discharge after preheating. A discharge start control unit for providing a second control input to the ballast control unit for supplying a maximum current to the lamp while And a ballast control unit that receives a plurality of control signal inputs including a low light lighting control unit including a timing control unit for controlling the timing of the supplied control current input by varying the frequency outputted to the inverter and shortening the discharge after the preheating period. After discharging a large amount of tube current through the lamp for a period of time, it is configured to control the current flowing in the lamp with brightness before extinguishing. Therefore, in the present invention, it is possible to immediately turn on the lighting with low illuminance.;Illuminance control, electronic ballast, low light