Abstract
This is a proposal for a half-bridge type metal halide discharge (MHD) lamp ballast with a coupled inductor and a frequency-controlled synchronous rectifier. To avoid using an external igniter, the internal LC resonance of a buck converter is used to generate a high-voltage pulse for the ignition. A coupled inductor filter is used for steady state ripple cancellation. This filter allows the MHD lamp to avoid the acoustic resonance phenomenon. To improve the efficiency of the ballast, a synchronous buck converter is used for the DC/DC converter stage and a frequency control method is proposed. This scheme reduces the circulation current and turn-off loss of the metal-oxide semiconductor field effect transistor (MOSFET) switch in the constant power operation, which results in an increase of the efficiency of the ballast system compared to fixed frequency control. A front-end power factor correction circuit is included in the ballast. This proposal zis verified with hardware experiments.
| Original language | English |
|---|---|
| Pages (from-to) | 291-298 |
| Number of pages | 8 |
| Journal | IET Electric Power Applications |
| Volume | 1 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2007 May 18 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
High efficiency metal halide discharge lamp ballast with an internal igniter and low ripple lamp current. / Lee, Inkyu; Cho, B. H.
In: IET Electric Power Applications, Vol. 1, No. 3, 18.05.2007, p. 291-298.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High efficiency metal halide discharge lamp ballast with an internal igniter and low ripple lamp current
AU - Lee, Inkyu
AU - Cho, B. H.
PY - 2007/5/18
Y1 - 2007/5/18
N2 - This is a proposal for a half-bridge type metal halide discharge (MHD) lamp ballast with a coupled inductor and a frequency-controlled synchronous rectifier. To avoid using an external igniter, the internal LC resonance of a buck converter is used to generate a high-voltage pulse for the ignition. A coupled inductor filter is used for steady state ripple cancellation. This filter allows the MHD lamp to avoid the acoustic resonance phenomenon. To improve the efficiency of the ballast, a synchronous buck converter is used for the DC/DC converter stage and a frequency control method is proposed. This scheme reduces the circulation current and turn-off loss of the metal-oxide semiconductor field effect transistor (MOSFET) switch in the constant power operation, which results in an increase of the efficiency of the ballast system compared to fixed frequency control. A front-end power factor correction circuit is included in the ballast. This proposal zis verified with hardware experiments.
AB - This is a proposal for a half-bridge type metal halide discharge (MHD) lamp ballast with a coupled inductor and a frequency-controlled synchronous rectifier. To avoid using an external igniter, the internal LC resonance of a buck converter is used to generate a high-voltage pulse for the ignition. A coupled inductor filter is used for steady state ripple cancellation. This filter allows the MHD lamp to avoid the acoustic resonance phenomenon. To improve the efficiency of the ballast, a synchronous buck converter is used for the DC/DC converter stage and a frequency control method is proposed. This scheme reduces the circulation current and turn-off loss of the metal-oxide semiconductor field effect transistor (MOSFET) switch in the constant power operation, which results in an increase of the efficiency of the ballast system compared to fixed frequency control. A front-end power factor correction circuit is included in the ballast. This proposal zis verified with hardware experiments.
UR - http://www.scopus.com/inward/record.url?scp=34248340035&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34248340035&partnerID=8YFLogxK
U2 - 10.1049/iet-epa:20060315
DO - 10.1049/iet-epa:20060315
M3 - Article
AN - SCOPUS:34248340035
VL - 1
SP - 291
EP - 298
JO - IET Electric Power Applications
JF - IET Electric Power Applications
SN - 1751-8660
IS - 3
ER -