| Title |
A New Optimal Design Method of the Electronic Ballast for MHL with Stable Run-up Current |
| Authors |
임병로(Lim, Byoung-Loh) ; 장목순(Jang, Mog-Soon) ; 임기승(Lim, Ki-Seung) ; 박종연(Park, Chong-Yeun) |
| Keywords |
Metal Halide Lamp ; LCC Resonant circuit ; Run-up current ; Acoustic resonances |
| Abstract |
This paper proposed a new optimal design method of the electronic ballast with stable run-up current for Metal Halide lamp during the ignition condition. In order to avoid operation in the acoustic resonance frequency band and to supply the optimal ignition current without demage of inverter switching components during the ignition period, the values of the series inductor Ls, the series capacitor Cs, and the parallel capacitor Cp were determined by analysis of characteristics of inverter transfer function depend on Lamp operating power and resistance of ignition condition and steady state operating condition. For the prototype ballast for a 400W Metal Halide Lamp, experimental results are presented in order to validate the proposed method. |