C. Licitra et al., SINGLE-ENDED SOFT-SWITCHING ELECTRONIC BALLAST WITH UNITY POWER-FACTOR, IEEE transactions on industry applications, 29(2), 1993, pp. 382-388
A soft-switching single-ended ac/ac converter that is suitable for hig
h-frequency electronic lamp ballast is described. In spite of its simp
licity, the converter offers excellent performance with regard to load
and supply, ensuring the following: High-frequency supply to the lamp
sinusoidal and in-phase supply current easy control of lamp power hig
h efficiency due to soft switching at both turnon and turnoff. Steady-
state operation, control characteristics, and design criteria are disc
ussed, and experimental results are reported, with input and output ci
rcuit performance, component stress, and efficiency.