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Thanks.
The LM2576 and L4590 has such eff in their datasheets so I think by design their eff is not suited for battery operations. I do not have the chance of testing uc3843 yet, but know that it is used a lot.
Winding coils with many wires seems to be good idea, I will try.
l4960
Hi,
Anybody know good design for feeding high power leds like 1w star?
The first question rises what is the best current / voltage design to feed lets say 6 or 12 of these leds, if you make 6 series in two rows for example 22.2 volts / 0.7A, or with 2 leds 6 rows, 2.1A, 7.4v ???
To...
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