Abstract
The work presented here is a first prototype of AC/DC converter for T8 LED lamp application. Main merits of this circuit are: High power factor, High efficiency and Intrinsic dimming function. Proposed design is based on the operation concept of Magnetic Energy Recovery Switch (MERS). Turn-on and turn-off intervals are under soft-switching regimes, allowing minimum stress and power losses on switches. The circuit still is on development process and there are several problems to tackle. Main challenges are: Cost, competitive size and minimum voltage DC ripple without electrolytic capacitors.
