Analysis and design of a high power factor, single-stage electronic ballast with dimming feature
作者： T.-F. Wu , M.-C. Chiang , E.-B. Chang
关键词:
摘要: The analysis, design and practical consideration of a single-stage electronic ballast with dimming feature unity power factor are presented in this paper. proposed is the combination boost converter half-bridge series-resonant parallel-loaded inverter. semi-stage, working discontinuous conduction mode, functions as corrector inverter operated above resonance, employed to lamp. Replacing lamp plasma model, analysis fulfilled. carried out by using pulse-width modulation variable-frequency controls simultaneously. can save controller, reduce size possibly increase system reliability over conventional two-stage system. A prototype was implemented verify theoretical discussion. hardware measurements have shown that desired performance be achieved feasibly.
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