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SIGNALING AND REMOTE CONTROL TRAIN OPERATION

  • US 20140299715A1
  • Filed: 03/06/2014
  • Published: 10/09/2014
  • Est. Priority Date: 08/17/2005
  • Status: Active Grant
First Claim
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1. A power supply for a model railroad layout, comprising:

  • an AC transformer arranged to provide an adjustable-voltage AC track power signal and a fixed AC accessory voltage signal;

    a pass device coupled to the AC transformer for controllably phase modulating the fixed AC accessory voltage signal to form an altered AC accessory voltage signal;

    a relay arranged for connection to a model railroad track, the relay coupled to the AC transformer to receive the adjustable AC track power signal, and coupled to an output terminal of the pass device to receive the altered AC accessory voltage signal; and

    a microprocessor, the microprocessor having a first output arranged for controlling the pass device for controllably phase modulating the AC accessory voltage signal for encoding a desired digital command word, and the microprocessor having a second output for controlling the relay for switching between the AC track power signal and the altered AC accessory voltage signal.

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