delorie.com/archives/browse.cgi   search  
Mail Archives: geda-user/2016/09/19/03:02:25

X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
Message-ID: <20160919070050.2524.qmail@rahul.net>
Date: Mon, 19 Sep 2016 00:00:50 -0700
To: geda-user AT delorie DOT com
Subject: [geda-user] pin number and pin sequence of diodes
X-Mailer: VM 7.19 under Emacs 23.4.1
From: conover AT rahul DOT net (John Conover)
MIME-Version: 1.0
Reply-To: geda-user AT delorie DOT com

Unless I am mistaken, the PINSEQ is reversed in many of the library
diodes.

Spice requires the anode node followed by the cathode node, as
determined by the PINSEQs, (these, I think, are reversed in many of
the diodes in the library.)

Pcb routes on the pin number, (which are correct in most of the diodes
in the library.)

So, if I want a spice simulation of a diode, PINSEQ=1 would be the
anode, and PINSEQ=2 would be the cathode. I think this is the way
gnetlist -g spice-sdb works.

If I want to layout the diode circuit, PINNUMBER=1 would be the
cathode, and PINNUMBER=2 would be the anode, (and the PINLABEL would
be K and A, respectively.) I think this is the way gsch2pcb works.

Am I right?

    Thanks,

    John

-- 

John Conover, conover AT rahul DOT net, http://www.johncon.com/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright 2019   by DJ Delorie     Updated Jul 2019