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Mr. Bugs

If it follows the logic for model train DCC then there would be AC current coming down both rails. The left has the data and (+) AC power while the right rail has the (-) AC power. The data from the left rail instructs chip and then converts what is left of the upper part of of the sine wave to DC and powers the motor. The right (-) rail is converted to DC/rectified to fill in where the (+) AC pulse left gaps. This configuration sends clean data and delivers a relatively smooth pulse of power to the motor and other electrical accessories.


Maltese
 

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While waiting for the guys who did the video to respond...each car has a "receiver" looking for a certain frequency. When it hears its frequency it does what it is told...like having five portable radios in the same room on the same station.

The hand controller does not handle the voltage, the box does. The same voltage is sent all the time roughly while the signal to the car tells a device in the car how much voltage to allow through to the motor...thus speed control.

...I now await a well-rounded correction from Tropi or Astro which I probably deserve.


 
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