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Re: Power Supply Design Resources?

24.9.51.101

Posted by Damon W. Hill on July 16, 2000 at 22:53:20

In Reply to: Power Supply Design Resources? posted by Andy B on July 16, 2000 at 16:38:59:

Since you didn't specify a range of voltages and currents, or specific
applications, the best design I can recommend comes from the 1995 issues of The Audio Amateur, by Walter Jung. It is a series voltage
regulator design built around a low-noise AD797 opamp and operates
up to a maximum of about plus and minus 24 volts.

A circuit board and a copy of the articles, which go into considerable
analysis of various three-terminal regulators and other discrete designs, are available from Old Colony Sound Lab for $25.

(http://www.audioXpress.com)

I've built several of these and they seem to work very well; they're
quieter than any three-terminal regulator I've tested, and their
output impedance is exceptionally low over a very wide bandwidth
when carefully constructed according to the articles. I'm using one in my Hafler SE100 all-JFET preamp.

I'd also recommend checking out Linear Technology's web site for
their application notes on their three-terminal regulators, which will
provide most of the details you need to built a good regulator. I
much prefer to build those with a 100uf or so cap on the ADJ pin to
ground, for lower noise and ripple.

Anyone have suggestions for shunt-regulator designs? I've never worked with these.

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