LED Multiplexing Power Consumption

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JimB said:
You could also use an external resistor to drop some of the 7v before the 7805.
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Or a few rectifier diodes to give a more consistent drop - eg. up to six 1N4000 series diodes or similar.
That should reduce the regulator input to somewhere around 8V on a 12V supply.
 
Or do it 'properly' and use a switch-mode regulator, you can buy tiny adjustable module ones for hardly any money from Banggood etc.
 
Suraj143 said:
Oops sorry.This thread belongs to 8x24 design.My new design is 16x48 matrix That is why I started a new thread.
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You should stick with the original thread - or we may need 20 posts again on this thread to agree on what average means in your context.
 
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