IEEE Transactions on Power Electronics
A novel discrete dimming ballast for linear fluorescent lamps is proposed in this paper. A proposed dimming control circuit is combined with a ballast module for multiple lamps to realize control of three discrete lighting levels. Compared with conventional step dimming or ON-OFF control methods, the proposed discrete dimming method has the following advantages: 1) digital signal is generated by the dimming control circuit to control the lamps' turn- ON and -OFF, which makes the system more reliable and integrated; 2) the proposed discrete dimming system replaces relays, which are necessary in conventional lamp ON-OFF control, and therefore decreases the system cost; 3) the proposed dimming ballast can be installed by keeping the original wiring system. This makes the upgrading of a lighting system more effective and efficient; 4) the dimming control circuit also provides a good isolation for operating the low-voltage wall switches by hand safely. Both theoretical, simulation, and experimental results are in good agreement.
Wang, Haiyan; Stankovic, Ana Vladan; Nerone, Louis; and Kachmarik, David, "A Novel Discrete Dimming Ballast for Linear Fluorescent Lamps" (2009). Electrical Engineering & Computer Science Faculty Publications. 110.
Haiyan, W., Stankovic, A. V., Nerone, L., & Kachmarik, D. (2009). A novel discrete dimming ballast for linear fluorescent lamps. IEEE Transactions on Power Electronics, 24, 6, 1453-1462.
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