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Voltage regulation

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personman:
Dave,

I would love to see a blog on voltage regulation.  Methods, set ups, and appropriate choice per application including if/when no regulation is required.

For instance cap selection for say a 7805, when are zener diodes appropriate/not appropriate, other methods, ect.

Love the blog, I look forward to each release.

Thank you for your time. 

djsb:
Hi,
I've had problems before with a regulator oscillating because of (my) poor PCB layout and also incorrect decoupling. I t would be nice to have some tips on this.
Also how do you design a power supply WITHOUT a regulator i.e for a high powered audio amplifier.
Any thoughts.

David.

gbowne1:
This would be a good point to talk about good and bad PCB design.  Everyone could learn a few things from a nice blog on PCB design tips.  I also could benefit from one about Voltage Regulation because that's been one of my demons too.  I've too often not had the right part in hand when I really needed a better Voltage Regulator.

I have used the 7805 and 7809 with pretty good success.

Greg

Simon:
with linear regulators like the 7805 you want input and output decoupling capacitors as close to the regulator as possible, not much mystery to it

Neilm:
For tips on how to layout PCBs go to http://www.compliance-club.com/ and look for past articles by Keith Armstrong. This is mostly aimed for EMC compliance and high speed signals but the basics are there.

Neil

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