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Old 21st Jun 2018, 11:13 am   #3
MrBungle's Avatar
Join Date: Jun 2016
Location: London, UK.
Posts: 2,856
Default Re: Switched Mode Power Supplies

I’ve built a few boost and buck converters over the last couple of years. Some from scratch and some with COTS ICs.

Best success so far has been the LT1073 IC. Very useful if a little expensive. I built a 90v step up from a 5v source with that to build an avalanche pulse generator.

The canonical reference for these sorts of things is The Art of Electronics. 3rd edition happens to have a lot of material on switching supply design.

Conveniently the free sample chapter is the one on power supplies! - see page 636 onwards.

Edit: the MC34063 is a nice little IC. It’s rubbish compared to some designs but it does the job. Also don’t forget the cheap chinese boost/buck modules; some of them are actually quite good.
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