File:Stop-at-platform relay for railway models as-built 02.jpg

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Description Here is my approach to automatically stop analog DC trains at station platform, wait for a preset delay, and then resume movement. The as-built circuit controls two independent platforms on a single circle track (fully bidirectional), or two independent platforms on two lines (not truly bidirectional). The circuit is purely analog, sensing current in the approaching track segment ("sensing track") and interrupting current path to the next track segment ("stopping track"). Schematic below is for one channel. The relays are for changing direction only; they may be omitted in unidirectional circles. One R-Y-B "traffic light" provided for the demo.
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Source Own work
Author Retired electrician
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Schematic, one channel
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current04:14, 16 April 2022Thumbnail for version as of 04:14, 16 April 20222,400 × 2,400 (1.06 MB)Retired electrician (talk | contribs)== {{int:filedesc}} == {{Information |Description=Here is my approach to automatically stop analog DC trains at station platform, wait for a preset delay, and then resume movement. The as-built circuit controls two independent platforms on a single circle track (fully bidirectional), or two independent platforms on two lines (not truly bidirectional). Schematic below is for one channel. One R-Y-B "traffic light" provided for the demo. |Source={{own}} |Date=2022-04=15 |Author= [[User:Retired e...

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