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Mail Archives: geda-user/2018/11/27/13:15:00

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Subject: Re: [geda-user] [off-topic] 24V automotive (truck) design issues
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From: "Richard Rasker (rasker AT linetec DOT nl) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Message-ID: <54e56571-e668-f382-5f18-7e8f579c8531@linetec.nl>
Date: Tue, 27 Nov 2018 19:13:47 +0100
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Hello Luis,

Op 27-11-18 om 16:54 schreef Luis de Arquer (ldearquer AT gmail DOT com) [via 
geda-user AT delorie DOT com]:
> Hi Richard,
>
> On car, we normally use a TVS with a high enough value so that
> supressed load dump doesn't affect it, yet the other pulses can be
> drained through -so 36V to 40V. 33V TVS showed to burn on load dumps.
>
> Anyway, let us know what you find out! I am curious to see why it failed :)

I just got the boards in, and sure enough, the TVS diode was obliterated 
in the broken ones.

This Friday, I'll go to the truck company with a DSO for measurements on 
the actual vehicles, both in the workshop and 'live' on the road.

I'll let you know what I find!

Thanks again,

Best regards,

Richard Rasker

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