TY - GEN
T1 - Two-stage high power factor electronic ballast for metal-halide lamps
AU - Liang, T. J.
AU - Huang, C. M.
AU - Chen, J. F.
PY - 2008
Y1 - 2008
N2 - This paper presents a novel two-stage high power factor electronic ballast for metal-halide (MH) lamps. The front stage is a single-switch two-output integrated converter, which is a combination of two buck-boost converters. The functions of power factor correction (PFC) and lamp power control are achieved by the integrated converter. The post stage is a low frequency half-bridge inverter, which is used to drive the MH lamp with a low-frequency square-wave current for avoiding acoustic resonance. The analyses of input current, the constant lamp power control, DC-bus voltage, and boundary conditions are discussed. A 70W laboratory prototype is implemented to verify the performance. The measured results illustrate that the harmonic distortion of AC input current satisfies the requirements of the IEC 61000-3-2 Class C standard, and the lamp power is maintained at a constant level within ± 1.1 %.
AB - This paper presents a novel two-stage high power factor electronic ballast for metal-halide (MH) lamps. The front stage is a single-switch two-output integrated converter, which is a combination of two buck-boost converters. The functions of power factor correction (PFC) and lamp power control are achieved by the integrated converter. The post stage is a low frequency half-bridge inverter, which is used to drive the MH lamp with a low-frequency square-wave current for avoiding acoustic resonance. The analyses of input current, the constant lamp power control, DC-bus voltage, and boundary conditions are discussed. A 70W laboratory prototype is implemented to verify the performance. The measured results illustrate that the harmonic distortion of AC input current satisfies the requirements of the IEC 61000-3-2 Class C standard, and the lamp power is maintained at a constant level within ± 1.1 %.
UR - https://www.scopus.com/pages/publications/57949083294
UR - https://www.scopus.com/pages/publications/57949083294#tab=citedBy
U2 - 10.1109/08IAS.2008.247
DO - 10.1109/08IAS.2008.247
M3 - Conference contribution
AN - SCOPUS:57949083294
SN - 9781424422791
T3 - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
BT - 2008 IEEE Industry Applications Society Annual Meeting, IAS'08
T2 - 2008 IEEE Industry Applications Society Annual Meeting, IAS'08
Y2 - 5 October 2008 through 9 October 2008
ER -