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'Keep-Alive' Circuit For My Porters & Critters
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 Posted: Wed May 1st, 2019 03:25 pm
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man7sell
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Video test of the keep alive.

https://youtu.be/arM4SlFrtCM



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 Posted: Fri May 3rd, 2019 12:47 pm
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Si.
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Hi Paul  :wave: :dt:



Very neat & sooooper compact wiring on your DIY 'Keep-Alive' !  :thumb:

(yes, perhaps smaller resistors next time !)

Well worth 'doing it oneself'.  :)



Those Million $$$ super-capacitors, from expensive RS, Digikey & Mouser etc. ...

... are just pennies, from China on eBay.  :cool:



Those commercial 'Keep-Alives' must have gold-bars inside them !!  :shocked:  ;)



:!::!::!::!::!:



Si.




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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Fri May 3rd, 2019 01:01 pm
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Si.
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These   1.5 Farad 2.7 Volt   'super-capacitors' cost me £1.49p inc. P&P on eBay !  :thumb:


... More Info. & a LINK > > >



:brill:



Si.




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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Fri May 3rd, 2019 02:09 pm
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man7sell
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Si. wrote:


These   1.5 Farad 2.7 Volt   'super-capacitors' cost me £1.49p inc. P&P on eBay !  :thumb:


... More Info. & a LINK > > >



1.5 Farads should be a great keep-alive storage, mine are only 1 Farad so you should get 50% more :brill:

Good price too.

I got all my components from an online electronics supplier here.

Still a little more than yours on eBay.

Paul




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 Posted: Tue May 14th, 2019 06:27 pm
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man7sell
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Forgot to set the DC mode off.

This is what happens when you remove power from the track.

Funny  :P


https://youtu.be/1yyVVMhrb6Q


Paul




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 Posted: Thu May 16th, 2019 08:04 am
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Helmut
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Quite logical.

When CV29 bit2 is set,
the decoder checks the input for DC-level,
when there is no DCC signal.

As the DC input is zero,
the motor power signal is set to zero accordingly,
and stops the loco.




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 Posted: Sat Feb 6th, 2021 03:30 pm
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Stan S
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Have you ever added a Keep-Alive to a non-sound Bachmann Porter?








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