Description

3 Rail Block Detector x 10

This project is used in 3 rail o-gauge train layouts to detect when a train is in a specific block of track. This is accomplished by using an isolated outside rail and when the axle of the train completed the circuit will de-bounce input and switch independent output circuits. This is usefully in automatic crossing gates, signal, semaphores and more. by having the relays isolated the same block can trigger multiple relays activating multiple accessories with different voltage requirements.

Schematic and Layout

Screenshot 2024-01-20 at 10.48.31 PM.png

Jan 21,2024

320 views

3 Rail Block Detector x 10

2 Layers PCB 72.4 x 175.3 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen

Block Detection Circuit for O gauge three rail train layouts

320

Published: Jan 21,2024

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