andrew.d.zachar(at)gmail.
Guest
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 Posted: Mon Feb 21, 2011 10:16 am Post subject: Permanent Magnet Alternators - Over Voltage Protection |
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On Mon, Feb 21, 2011 at 12:08 PM, rayj <raymondj(at)frontiernet.net (raymondj(at)frontiernet.net)> wrote:
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THIS email is why I love this list. I didn't understand a word of it!!!! 
On 02/20/2011 11:13 PM, Robert L. Nuckolls, III wrote:
| Quote: | --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>
The non-sensitive crowbar SCR needs a swift kick in
the gate to insure a good trigger at all temperatures.
The simple zener has a soft conduction 'knee' in it's
V/I curve so is a poor voltage reference at the
threshold of conduction. Further, the current that
can be delivered to the gate of the SCR due to
zener conduction is limited by the source impedance
of the calibration voltage divider.
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I actually read this paragraph to my girlfriend out loud. She said it sounded like Doc Brown's 1.21 gigawatts flux capacitor speech from Back to the Future.
I love hanging out with smart people, but I've got a long way to go to understanding that paragraph. My girlfriend? She said she's going to stick to biology and leave the electron pushing to me.
do not archive.
--
Andrew Zachar
andrew.d.zachar(at)gmail.com (andrew.d.zachar(at)gmail.com)
[quote][b]
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