Development of a Neutral Point Type Converter and Application as an Electronic Ballast Daylighting

摘要

References(9) Cited-By(1) A previously developed two converter method electronic ballast, a combination of converter and inverter circuits, satisfies the IEC 61000-3-2 class C harmonics standard. However, this method had many faults. To further improve the system, we propose a neutral point type boost converter and confirm by experiments that the proposed converter could be used as an electronic ballast. However some problems that were caused by boost operation still remained. Therefore, we propose here a new neutral point type buck-boost converter circuit that remedies the problems. We show that the proposed converter can be used as an electronic ballast and achieved extensive results.