Re: A question I "should already know the answer to", but I don't

Posted by IvIark on Nov 16, 2015; 5:43pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/A-question-I-should-already-know-the-answer-to-but-I-don-t-tp26007p26026.html

Virtually all the layouts will include a filter cap but usually just the 47u and not the 100n in parallel, although that is included in some where I had the space.  I will always omit the parallel reverse polarity protection because I think it's stupid.  In the event of a reverse polarity being applied the diode will at best burn up, at worst explode.  I've seen big holes in boards cause by protection diodes used in this configuration.  

So if I were to use anything it would be series protection using a 1N5817 for a lower voltage drop.  Under reverse polarity the diode simply won't conduct, so it doesn't have to be a diode of mass destruction.