High-power LED Indoor Lighting Solutions

摘要

For high-power LED interior lighting applications, we present a wide voltage input range and effective flyback structure circuit, based on the classic Power Factor Correction(PFC) chip, L6S61. It can resolve the small PF when low-power applications, as well as a large voltage fluctuations situation. Using constant current detection scheme drive 20 high power 1W LEDs. Mastering the typical LED drive and control strategy is very helpful designing a qualified LED power supply and drive.