Back to Back Tantalum Caps

[Spehro Pefhany]

A recent prototype SMPS ( @ 130 kHz ) came in with standard reservoir caps on
the output side in place of low ESR btw. It actually seemed to work fine but we
had a moan all the same. Their substitution of 1N400x for UF400x was rather less
than sucessful though.


Cheers, Graham

Isn't that the worst? Stuff that "almost" works. Problems that cause
an immediate failure are less of an issue.


Best regards,
Spehro Pefhany

 

[keith]

For sure.

Ages back I looked into the chipset business and was amazed that you could
basically replicate a 'reference design' offered by the chipset manufacturer on
a licence free basis.

Sure, you can build 'em, but you're not going to make any money building
them. The reference designs aren't optimized. Often they'll be six-layer
where only four is needed, etc.

<snip>