On Wed, Jun 3, 2009 at 6:34 PM, Jeff Lasman <[email protected]> wrote: > Good info here: > http://sci.tech-archive.net/Archive/sci.electronics.design/2005-02/5165.html > But that was 2005, this is 2009, and UPSes using stepped square waves > come with $10,000 equipment warranty. > So have things (like design issues) fundamentally changed?
Everything modern uses high frequency switching power supplies (unless you're like Gibson and got a PDP-8 :-). So when you talk about stepped square waves, are you talking about PWM (Pulse Width Modulated) output? That's par for the course nowadays. -- Regards... Todd
