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on that case you show to me. the electricity go through the LM317 and not to save to the capacitor first, your first picture LM317 which are there 2 capacitor polarized and non polarized, so electricity could save to them. which save can i used for my regulator?
if i used your first picture...
do you know how to calc within LM317 Output Power, Resistor 1 and Resistor 2?
Added after 13 minutes:
i guess :
that the calculate every R2 + 240 regulated up to 3 volt? right?
Added after 6 minutes:
so if i want to output power is 3.3 V so i must change R2 to be value :
assume 1 Volt =...
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