PROJECT TITLE :
A Family of Bridgeless Quasi-Resonant LED Drivers
A family of offline bridgeless quasi-resonant LED drivers is introduced. The prominent features of the proposed drivers are the capacitive isolation feature, inherent low line-current distortion, and high power issue. The concept is validated by a thirty-W prototype operated within the vary of 150–two hundred kHz and 30-V dc output (LED string voltage).
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