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Author Topic: 240 volts in the U.K.  (Read 5168 times)
richg
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« Reply #15 on: February 21, 2012, 10:29:56 PM »

rogertra

If it is HO scale it probably runs on DC  not  AC.

Bob

I've not got mine set up but I was under the impression that DCC was 16 VAC to the track and it was converted to DC via the DCC chip.  Or have I got it completely wrong?

Yes, about 16 VAC to the track. The decoder changes this to DC for the light options and to operate the Integrated circuits on the decoder. The digital info is extracted from the waveform.
The decoder sends pulse power to the motor, PWM. A multimeter will see DC voltage. A Scope shows you the actual pulses like the link shows you.
Take time to store the below link in Favorites and take time to absorb what the link shows you.

http://www.awrr.com/dccintro1.html

Rich

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rogertra


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« Reply #16 on: February 22, 2012, 12:02:27 AM »


Yes, about 16 VAC to the track. The decoder changes this to DC for the light options and to operate the Integrated circuits on the decoder. The digital info is extracted from the waveform.
The decoder sends pulse power to the motor, PWM. A multimeter will see DC voltage. A Scope shows you the actual pulses like the link shows you.
Take time to store the below link in Favorites and take time to absorb what the link shows you.

http://www.awrr.com/dccintro1.html

Rich


So I was correct, 16 VAC!

Excellent link Rich, thanks very much.  It will come in very handy once I get some track down.
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