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Thread: Son of simple step-up SMPS challenge
face BY : Russell McMahon email (remove spam text)

White (or other) LED flashlights - 1 - 2 & 2  - 4 cell designs.


Nicely done albeit a little commercial in rendition :-)

University of Ulm.
Two different IC's used.
65% to almost 80% efficiency depending on battery / LED combinations.


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Subject (change) Son of simple step-up SMPS challenge

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