X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sendgrid.net; h=subject:from:references:mime-version:in-reply-to:to:content-type: content-transfer-encoding; s=smtpapi; bh=E67+I4W8pv7tE91nopb0VtOyfkkjkOAl12OOt6TxXyU=; b=p6pUoeDRn66MnQ/ai+4R2R61Es/DCy/XslAx0f2vBSl2qS1vdx2M73RPUlM1w7WW4XQT wdW254UKtyWik8sCS/xoa9OA+f/mMaPyW2R5v1BhWRg+MoWSXFtxflRvvQ4esN1uKE8y2S Q28F4LXOi+ZWwP6DBX5qxwZcK3yn3MXRY= Subject: Re: [geda-user] 3V to 12V converter From: "John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" References: <1a9ac9de-8685-d0d7-d675-1e2e526e35d8 AT ecosensory DOT com> Message-ID: <6885a2d6-da21-ac3b-6695-e27b2b34392c@ecosensory.com> Date: Tue, 20 Aug 2019 21:55:33 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:69.0) Gecko/20100101 Thunderbird/69.0 MIME-Version: 1.0 In-Reply-To: <1a9ac9de-8685-d0d7-d675-1e2e526e35d8@ecosensory.com> X-SG-EID: =?us-ascii?Q?h+LZo4tR473eP3wdj1M8wax3s910wvFiBkApAyn=2FYucz0a4Srxu2F0iJ62nyPC?= =?us-ascii?Q?nxl7TDZ0rZH7J1uhY=2FaTAmJZhJxVk2L4YpCyY8W?= =?us-ascii?Q?jkI+cAZsUFErlK67DrWnUtItXK+1REwBLBKzjj+?= =?us-ascii?Q?I9NsKp0chqtscqLKZsNplXLiwUrs9uZVGueoqzz?= =?us-ascii?Q?sKTBFQs5jphKwlc5zc+W9ebR6byIVbPbHMOT5Tk?= =?us-ascii?Q?=2Fmx+M9305fdtt25MyFMu5hzblxY3tQkvukw+fn?= To: geda-user AT delorie DOT com Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id x7KLuGCM029805 Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On 8/20/19 4:49 PM, John Griessen wrote: > Here's something I used with functional results.  I have not looked at it with > a spectrum analyzer for generated noise yet...  But scope probing near it doesn't seem bad. > > https://www.cibolo.com/docs/pyflex_f401_power_18V.png Whoops, that one I used is current limiting at 350 mA on purpose... 12V and 1A is 12 Watts, so it will need heat sinking area in the layout.