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                           AeroElectric-List Digest Archive
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                     Total Messages Posted Thu 12/30/21: 1
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Today's Message Index:
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     1. 10:57 AM - Re: Re: Low voltage warning light  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 10:57:05 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Low voltage warning light

At 10:44 AM 12/29/2021, you wrote:
>
>Here is a link to a homemade low voltage indicator circuit:
>https://www.homemade-circuits.com/low-battery-indicator-circuit-using-two/

   These are functional after a fashion. They don't exploit
   the performance of a precision (stable) voltage
   reference . . . and they don't drive the full
   constellation of led/incandescent lamps and/or
   digital data ports.

   I'm working an upgrade of the original AEC9005
   LV warn/battery management module that will use
   modern surface mount parts and 'package' by
   soldering the board to the solder-cups of a
   d-sub connector.  Surface mount will greatly
   shrink the real estate on the ecb. This will
   get us more bare-boards per coupon on the low
   cost, fast turn prototype service I use. Makes
   the individual boards a lot less expensive.

   I should have a sketch of the schematic to
   share shortly . . . I'm in the middle of
   a fabrication project in the mess-making shop
   that needs to get done asap . . . but this
   ol' dog needs to sit down and rest the
   feet from time to time . . . chance to do
   some fun stuff and herd electrons.


   Bob . . .

   Un impeachable logic: George Carlin asked, "If black boxes
   survive crashes, why don't they make the whole airplane
   out of that stuff?"

 

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