29 Apr '17, 7pm

7.8 W Isolated Flyback LED Driver #EEWeb

7.8 W Isolated Flyback LED Driver #EEWeb

7.8 W Isolated Flyback LED Driver Posted Apr 29, 2017 at 7:00 am This design example report discusses a 7.8 W isolated flyback LED driver employing LYTS witch™-2 LYT2004D. This design operates in an input voltage ranging from 90 VAC to 270 VAC and provides a voltage output ranging from 24 V to 60 V at 130 mA current output. It features accurate constant current, constant voltage, wide LED load operating range, low cost, low component count, fast start-up time, no load consumptopn and integrated protection. This document contains the power supply and transformer specifications, schematics, bill of materials, and typical performance characteristics pertaining to this power supply. Figure 1 Populated Circuit Board Figure 2 Schematic Diagram Circuit Description Input Filter The AC input power is rectified by bridge rectifier BR1. The rectified DC is filtered by bulk storage ca...

Full article: https://www.eeweb.com/company-blog/power_integrations/7.8...

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