Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!tektronix!midas!jeffw
From: jeffw@midas.STS.TEK.COM (Jeff Winslow)
Newsgroups: sci.electronics
Subject: Re: Running a Mac/SE from batteries and inverter
Keywords: Mac, batteries, inverter
Message-ID: <4254@midas.STS.TEK.COM>
Date: 14 Apr 89 15:04:31 GMT
References: <13671@jumbo.dec.com> <2446@iscuva.ISCS.COM> <4224@midas.STS.TEK.COM> <2452@iscuva.ISCS.COM> <7687@fluke.COM>
Reply-To: jeffw@midas.STS.TEK.COM (Jeff Winslow)
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 11

In article <7687@fluke.COM> strong@tc.fluke.COM (Norm Strong) writes:

>I assume this is a full-wave inverter.  If so, the peak voltage is the same as
>the averge; the capacitor is quite small; the peak rectifier current is the
>same as the average; there is no "sag" in the capacitor voltage.  

Duh - me stupid. Of course. Actually, the capacitor is still big, since I
assume the Mac/SE's switcher is designed to run off of sinewaves, but there's
still no sag, and little if any peak on the input current.

						Jeff Winslow