From owner-freebsd-questions@FreeBSD.ORG Sat Nov 29 10:32:39 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6A65A3C8 for ; Sat, 29 Nov 2014 10:32:39 +0000 (UTC) Received: from nm14-vm5.bullet.mail.ir2.yahoo.com (nm14-vm5.bullet.mail.ir2.yahoo.com [212.82.96.193]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 546CE6B7 for ; Sat, 29 Nov 2014 10:32:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s1024; t=1417257137; bh=Z+T8zmeF8snxcCJ7SUPx2t3+v5Rw0ZTJ/I3/po0LDCQ=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=wcmyELdOwOuokEbvW4cGBj8YG1Zi4bymWIz2leFMJd+9DWMBGwjko2OCkDA8As2p37tYCxSKKL8ZD7WKjShEodcNElEP5E1j03M74trCqcPtW0QVH22IVnGmwbqs67TSz33mZ0Zvc1LDTYjUgZOz1oFelytyw2gUS3SpUlUqLfs= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rocketmail.com; b=jYOUmxZdEaqRKh4vsdExq1uDpsDMId0tPFhrn8bG7VPgtCMUPt1BReZ3Fk85SFSqQGQQDOF86Y4lw8w2WSTCj01KpuUk+BYR1OoBeKuAjtoz6csv+Kok7GJvgqxSYAi+9SXSXGYKnWOgvzvpR2UKMlqqFhSH/uobnHTnxcPzgaU=; Received: from [212.82.98.60] by nm14.bullet.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 10:32:17 -0000 Received: from [46.228.39.91] by tm13.bullet.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 10:32:12 -0000 Received: from [127.0.0.1] by smtp128.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 10:32:12 -0000 X-Yahoo-Newman-Id: 923658.19457.bm@smtp128.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: 9aCqFGoVM1lTtpwMPj3_G7PGY1brwh2zfXlg.7qtL3pjwc1 UAnb.Tt2RhyGV1cYZEO9YoY2MNizsmwcjtjXerghZAIPHwln8fyRDdMiQ8eN NYSisWHRBIuIGzr8ofjiCRrOWOGjII.Hjzpg6fQxG7YyJodRmJLrg4ZqyRK4 Uj8gGsSOYEgvD1G9qmRLYipACRyAsX1K2swuC.JfaRgta5E.kGGFmqjApSFw I9mDxinIgp4iBwwgZqfdkoKMPWJB_ehvDQq6XZrG2jp307OKRUYF7c2C1kRG Io_DQObvqN6LRg53L3nwEqdKrw6nhsrKbje2BY686jNbwYqAXemuaJJd79MI 3tLf8BA3E_rOzjotjOT9QSqPrcLlGnpbVLmRTNtq3zIGSxEPIm7mQsTw1.l. LBX2CaFjQI.RJgq.UzuG.r8Ozs.H7I30UdWaWymLM3KroiOvhtzksFxeZYGX AgS_HH9DBTVmJyTqr10VYDYTHUSWcx15p5PwF84DhcyG9o5AK7pFntGCTLiz YOO8IAeDQiRzf5G4R5qbd8shT50q_7a8- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Sat, 29 Nov 2014 11:32:11 +0100 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: [Bulk] Re: OT: UPS for FreeBSD Message-ID: <20141129113211.75388406@archlinux> In-Reply-To: <54798883.saa13h6lE6rPwZCf%perryh@pluto.rain.com> References: <54777AB1.9010800@bluerosetech.com> <54779629.302@bluerosetech.com> <5478BD4F.7020306@yahoo.com> <5478BEE6.30308@bluerosetech.com> <5478CC08.9090307@yahoo.com> <20141128204722.561f948e@archlinux> <5478F16A.80605@yahoo.com> <54791d3a.w/pI0kak03d+3nKC%perryh@pluto.rain.com> <20141129113405.3d1bd1d6@X220.alogt.com> <54798883.saa13h6lE6rPwZCf%perryh@pluto.rain.com> X-Mailer: Claws Mail 3.11.1-34-g5c904ff (GTK+ 2.24.25; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Nov 2014 10:32:39 -0000 On Sat, 29 Nov 2014 11:16:46 +0100 Ralf Mardorf wrote: > On Sat, 29 Nov 2014 00:49:07 -0800 > perryh@pluto.rain.com (Perry Hutchison) wrote: > > multitapped > > 120VAC ==> step-down ==> 6VAC ==> full-wave ==> ~15VDC ==> battery1 > > transformer rectifier > > | > > +---> 3VAC ==> full-wave ==> ~7.5VDC ==> battery2 > > rectifier > > Now I'm confused. The ratio should be around 1.41, the square root of > 2 "-" 1.5V assumed it's a diode bridge rectifier. > > E.g. 10 VAC * 1,41 = 14,1 > 14,1 - 1,5 = 12,6 VDC German writing ;), please replace the ","s with "."s. > > *?* My apologies for sending the mail before this one 2 times :(.