So, then, maybe the question should be: To what degree or resolution is the "stepping" or "squareness" permittable. Is there some calculus or something that I can use to say "this much" approximation is as good as a mathematically pure sine wave?
On 6/4/2009, "Todd Lyons" <[email protected]> wrote: >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 >_______________________________________________ >LinuxUsers mailing list >[email protected] >http://socallinux.org/cgi-bin/mailman/listinfo/linuxusers
