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=gmail.com; s=20161025;
        h=mime-version:references:in-reply-to:from:date:message-id:subject:to;
        bh=DOIYQfHSMTujA+gPHVEY1LWAHNtl104Oe43QOx8rdt4=;
        b=aHTteg0W+4BfM6xNulQE45KzNPd/pA1sz/SAzZxpM6Tnw1Fc8Nsr+bHlzYX1BaU5UH
         uYOaaM2u33y3ELDQurs6dtEFpBtC1IroenwhfZP2lGCjtiHbM9bRDS4onzYJFpj/QlSw
         JJNIPVKaNfWAMuP/O1a1WD3ROyYgOxkgserc9PfGFHVjcBZsFbI8JMBSNKZxYpyBOAnm
         E/IXeGDRFNrfgK4ai6u3DclGi0jZX+Pp7lbpaWZIlYuHHWPGBWkqdoo+HDTDwldky2O7
         TuuvrXZWKW7Qd4R/3U7StHa6PeMxoZFCsr2A7UGWmMFnsg+s4+Wa22z7jEJR78c4VHsb
         qF7w==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:mime-version:references:in-reply-to:from:date
         :message-id:subject:to;
        bh=DOIYQfHSMTujA+gPHVEY1LWAHNtl104Oe43QOx8rdt4=;
        b=fyAcoXUbGkammKUUqSbaRTE+IDMYxHr9mRWs/n77N7ukPidJEUhcYtm59ln6DvqyyP
         ma5UektGCVkzfkmL8JXR/6wup5PkdLebq/uGFgs69H5lmWAfhDAPNDwl5BuI3Ce0BtkG
         Kazy/nMNPzjPPU7ER3AXXeitleBpQNQwXicNdFtFYTKZdC0kmAhfMyIxkJJQgKMWQpWB
         W5UyoPa/x5MXlknvDWf8evRDapCqCYsrTJE6/Jwdmnjo98HctQzOz2rm6Hm3EpCTeycD
         0wgANSGWetY1CNQk6VTyMWzAYIvEJzLqOiD/qEfFdjB3S8ALca0jj7v+6QOSrGMvZ3GN
         1Bvg==
X-Gm-Message-State: ANhLgQ0ywb1vBty2/nFMX6TCPZ0MxFCBXu3a/YddVT21Ya0qv5S2K0HV
	J8uwcJm09DpOy8emXdujz+SLZm/RD4WWIH2mJh3tINod
X-Google-Smtp-Source: ADFU+vtV7SjJ7Lm6yz7R0xDuk4WU8bNOLXJKQd4BP+K6sVjQUbB2D5UL75pfFr3abLR/SBNtvoI+zsgiW9oV+XvZZlc=
X-Received: by 2002:a02:641:: with SMTP id 62mr4914987jav.79.1585170353176;
 Wed, 25 Mar 2020 14:05:53 -0700 (PDT)
MIME-Version: 1.0
References: <CAM7eQ1=e5rn+Mo1qDeo5hWDr9qjYnoy3=2XzuOjpEk+DoPCS7A AT mail DOT gmail DOT com>
 <20200323190245 DOT fdaebdc11b52d1f734d79d2f AT gmail DOT com> <CAM7eQ1k4+tq=BMrEpYS--EF587q6ASfZjRbybfbOzgaowSBcfA AT mail DOT gmail DOT com>
 <20200323205229 DOT d73d6db596a9cbf031cdd1e2 AT gmail DOT com> <CAM7eQ1=FWcNtkPP36Qy9_mPViH+UKr06kf-oyYDucaqV2Smh7A AT mail DOT gmail DOT com>
 <20200324174534 DOT 6a551748adbf9c9fdd4242d3 AT gmail DOT com> <9a9c3a42-8702-fb4e-62f0-a9316c75cdaf AT earthlink DOT net>
 <CAM7eQ1n73zpqxa748--kyNT7pQiydAAwDur27QSVHWjvQByP=w AT mail DOT gmail DOT com>
 <1D615BA8-0DF0-4516-9600-921E3314B121 AT noqsi DOT com> <CAM7eQ1m2WPwMafGQstMcbH0fWUF921E1nE17JJ=QMPVqjbSg+Q AT mail DOT gmail DOT com>
 <20200325212113 DOT e7ddb0dc85e46c741bd83e36 AT gmail DOT com>
In-Reply-To: <20200325212113.e7ddb0dc85e46c741bd83e36@gmail.com>
From: "Rob Butts (r DOT butts DOT geda AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Wed, 25 Mar 2020 17:05:41 -0400
Message-ID: <CAM7eQ1nLNg9YO3rVKONTh3ZRPDSOu5k1VxbLrVN_6S4JZLFViA@mail.gmail.com>
Subject: Re: [geda-user] Tenergy TB6B LiPo Charger
To: geda-user AT delorie DOT com
Content-Type: multipart/alternative; boundary="000000000000cf472b05a1b43ba8"
Reply-To: geda-user AT delorie DOT com

--000000000000cf472b05a1b43ba8
Content-Type: text/plain; charset="UTF-8"

Mosfet usually fail short circuit while relay usually fail open circuit.

So damned if I do...

Relay have to be rated for DC voltage, AC rating is not enough!

Yes, I did a joystick driven kayak which uses 50 amp dc relays so I'm quite
familiar with those ratings.  I didn't consider nor have I done anything
like this with mosfets.

--000000000000cf472b05a1b43ba8
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Mosfet usually fail short circuit while relay usually fail=
 open circuit.=C2=A0<div><br></div><div>So damned if I do...</div><div><br>=
</div><div>Relay have to be rated for DC voltage, AC rating is not enough!<=
/div><div><br></div><div>Yes, I did a joystick driven kayak which uses 50 a=
mp dc relays so I&#39;m quite familiar with those ratings.=C2=A0 I didn&#39=
;t consider nor have I done anything like this with mosfets.<br></div></div=
>

--000000000000cf472b05a1b43ba8--