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Low voltage warning light
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user9253

Joined: 28 Mar 2008
Posts: 1908
Location: Riley TWP Michigan

Posted: Wed Dec 29, 2021 8:44 am Post subject: Re: Low voltage warning light

Here is a link to a homemade low voltage indicator circuit:

https://www.homemade-circuits.com/low-battery-indicator-circuit-using-two/

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_________________
Joe Gores

nuckolls.bob(at)aeroelect
Guest

Posted: Thu Dec 30, 2021 10:57 am Post subject: Low voltage warning light

At 10:44 AM 12/29/2021, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com>



 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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