A soft-switching single-ended AC/AC converter suitable for high-frequency electronic lamp ballast is described. In spite of its simplicity, the converter offers excellent performances both on load and supply side, ensuring: 1) high-frequency supply to the lamp; 2) sinusoidal and in-phase supply current; 3) easy control of lamp power; 4) high-efficiency, due to the soft switching both at turn-on and turn-off. Steady-state operation, control characteristics and design criteria are discussed, and experimental results reported, showing input and output circuit performance, component stress, and efficiency.
Single-ended soft-switching electronic ballast with unity power factor
Testa Antonio
1992-01-01
Abstract
A soft-switching single-ended AC/AC converter suitable for high-frequency electronic lamp ballast is described. In spite of its simplicity, the converter offers excellent performances both on load and supply side, ensuring: 1) high-frequency supply to the lamp; 2) sinusoidal and in-phase supply current; 3) easy control of lamp power; 4) high-efficiency, due to the soft switching both at turn-on and turn-off. Steady-state operation, control characteristics and design criteria are discussed, and experimental results reported, showing input and output circuit performance, component stress, and efficiency.File in questo prodotto:
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