| Title |
Design of Electronic Ballast for 35[W] Ceramic Metal Halide Lamp by DBI Structure |
| Authors |
Chong-Yeun Park ; Wang-Seop Choi |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.9.001 |
| Keywords |
Ceramic Metal Halide Lamp ; Micro-Controller ; DBI(Dual Buck Inverter) ; Control Circuit |
| Abstract |
Ceramic metal halide lamps have been widely used due to long lifetime, high luminous efficiency and good colour rendering. 35[W] ceramic metal halide lamps has very different characteristics between ignition state and steady state. The developed electronic ballast is satisfied to both ignition state and steady state characteristics by using a micro-controller. The proposed electronic ballast is consists of EMI filter, Full-wave rectifier, Active PFC, DBI(Dual Buck Inverter), Igniter and control circuit. It enables to supply both low-frequency rectangular wave voltage and current to the lamp by using DBI(Dual Bcuk Inverter) structure. |