Subject:
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Re: LEGO train wire inductors and DCC
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 27 Jan 2005 01:06:02 GMT
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Viewed:
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1420 times
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In lugnet.trains, Ted Michon wrote:
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Anyone know the value of the inductors molded into the LEGO track connector
wires? Considering the recommendations against (parallel wired) capacitors on
the inputs to DCC decoders, then (seried wired) inductors would create a
similar problem degrading the DCC signalling performance.
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Hi !
The devices you are referring to are RFI suppressors. They are simply little
blocks of ferrite surrounding the wire to add a miniscule (a few hundred
nanohenries at most) amount of inductance to the wire so high frequency doesn’t
get radiated. The frequencies of interest are typically above 10MHz as required
for FCC and CE compliance amongst others. The inductance of these devices will
have very little if any effect on DCC.
JB
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Message has 1 Reply:
Message is in Reply To:
 | | LEGO train wire inductors and DCC
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| Anyone know the value of the inductors molded into the LEGO track connector wires? Considering the recommendations against (parallel wired) capacitors on the inputs to DCC decoders, then (seried wired) inductors would create a similar problem (...) (20 years ago, 26-Jan-05, to lugnet.trains, FTX)
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