Patent ID: 7091706

Claim:
A power control system for a model train traveling on a track, comprising: a transformer operatively coupled to the track to supply an operating voltage thereto; at least one accessory associated with at least one of the model train and the track; and a voltage regulator operatively coupled to the at least one accessory to supply a regulated voltage thereto derived from the operating voltage, the voltage regulator comprising: a load control unit having an output coupled to the accessory, the load control unit being responsive to a load control signal for controlling delivery of the regulated voltage to the accessory; a feedback unit coupled to the output of the load control unit and adapted to provide a feedback signal indicative of the regulated voltage at the output; and a controller responsive to said feedback signal and adapted to generate the load control signal such that the regulated voltage substantially corresponds to a reference voltage level, the controller being further responsive to a user command to define the reference voltage level.