Message-ID: <000201bff1da$6b6e0480$c60e1c3f@oemcomputer>
From: "bobjude" <bobjude@gateway.net>
To: "Lancair Mail List" <lancair.list@olsusa.com>
Subject: Diode Voltage Drop
Date: Wed, 19 Jul 2000 18:36:57 -0500
Reply-To: lancair.list@olsusa.com
Mime-Version: 1.0

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After reading all this stuff about diodes connected in series with the
charging circuit of a battery, I can not restrain myself any longer.  I
suggest that you take a look at the E/I characteristic curve of your diode.
You will find that the voltage across the diode is not constant, but is a
function of current.  The voltage is relatively constant over a range of
current values especially near the high end of its rated range.  In the case
of charging an auxiliary  battery which has not been discharged, the current
will be very low and the voltage drop across the diode will below the knee
of the curve.  You certainly can not expect that the voltage drop will
always be .6 volts.

Bob Jude

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