کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
704245 891234 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An improved topology of electronic ballast with wide dimming range, PFC and low switching losses using PWM-controlled soft-switching inverter
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
An improved topology of electronic ballast with wide dimming range, PFC and low switching losses using PWM-controlled soft-switching inverter
چکیده انگلیسی

This paper presents a novel improved topology of voltage-fed soft-switching LCrCdc series–parallel quasi-resonant inverter with a constant-frequency for electronic ballast applications. This new topology introduces a low-cost solution to reduce switching losses to achieve high-efficiency ballast. A symmetrical pulse wide modulation (PWM) control scheme is implemented to regulate a wide range of output power. Switching losses effect on ballast efficiency is discussed through experimental point of view. In this discussion, an improved topology in which accomplishes soft-switching operation over a wide power regulation range is proposed. Energy consumption of this new circuit is decreased by using reverse recovery attribute. Additionally, a power-factor correction (PFC) circuit is employed to make the line current follow naturally the sinusoidal line voltage waveform.Simulation results are favorably verified with the experimental measurements in 20 W ballast-lamp laboratory prototype. Different load conditions are provided in order to clarify the behavior of the proposed converter.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 78, Issue 6, June 2008, Pages 975–984
نویسندگان
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