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Airfield series circuit communications lighting system and method

  • US 5,926,115 A
  • Filed: 06/21/1996
  • Issued: 07/20/1999
  • Est. Priority Date: 06/21/1996
  • Status: Expired due to Term
First Claim
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1. A control system for a lamp in an airfield lighting system including an electrical circuit comprising a plurality of transformers, each transformer having a primary winding and a secondary winding, wherein the primary windings of the plurality of transformers are connected in series, the circuit being adapted to conduct an electrical current through the series-connected primary windings and at least one transformer of the plurality of transformers being adapted to provide operational power to the lamp, the control system comprising:

  • a master controller which applies an electrical control signs to the circuit;

    a remote controller, connected to the secondary winding of the one transformer, said remote controller comprising;

    means for receiving the electrical control signal from the secondary winding of the transformer as transmitted through the transformer from the primary winding of the transformer,a switch, coupled to the transformer secondary winding and responsive to a switching signal, to selectively energize the lamp,control means, responsive to the received electrical control signal, for generating the switching signal to control the lamp,means responsive to the received electrical signal for generating an acknowledge message, andmeans for applying the acknowledge message to the secondary winding of the one transformer to convey the acknowledge message to the master controller through the series-connected primary windings.

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