This customized circuit board picks up some of the pieces from a wall wart to drive a high-power LED. The basic concept is to keep the high-voltage components and swap out the low voltage ones for parts that will be able to drive the 10W load.
The PCB is customized designed, but you can see that it was shaped to match the wall wort’s original board. To the best is the original 500mA transformer. The low-voltage side uses an LM393 because of its dual-comparators. This offers feedback for both current and voltage and is a ideal compliment for the TOP242. We haven’t seen that part before, but [Mincior] says that it’s good for this application as it has safety features that lock down the chip if power or temperature are above spec. once the replacement is nestled inside of the plastic case it looks stock and makes sure that your customized LED fixtures will stand the test of time safely.
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