Y. M. Cheng

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This paper presents a novel two-stage electronic ballast for metal-halide (MH) lamps. The first stage is a single-switch buck and buck-boost integrated converter. The post stage is a half-bridge inverter driving the MH lamps with low-frequency square-wave current. The operating principle of the proposed topology is discussed. Also, constant power control is(More)
In combustion processes, the goals of the operation are to keep the combustor in the optimal condition and alleviate instabilities and its severe consequence. The conventional control systems based on the oxygen content usually have responses with certain delay. Most flames are turbulent and are affected by several unmeasured disturbances and continuous(More)
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