Title :
Phase-controlled dimmable electronic ballast for fluorescent lamps
Author :
Ki, Wing-Hung ; Shi, Jiying ; Yau, Elson ; Mok, Philip K T ; Sin, Johnny K O
Author_Institution :
Integrated Power Electron. Lab., Hong Kong Univ., Hong Kong
Abstract :
The proposed dimming method for fluorescent lamps consists of a wall unit and a light unit connected by two wires only. The rheostat of a triac dimmer restricts the cut-in angle to a small amount to be detected by the ballast controller. The angular information is then converted to frequency information in driving the lamp with desirable intensity
Keywords :
fluorescent lamps; lighting control; phase control; power convertors; angular information; ballast controller; cut-in angle restriction; fluorescent lamps; frequency information; light unit; phase-controlled dimmable electronic ballast; rheostat; triac dimmer; wall unit; Electronic ballasts; Fluorescent lamps; Frequency conversion; Inverters; Laboratories; Lighting control; Magnetics; Reactive power; Thyristors; Wires;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785652
