Subject:
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Re: Train Depot DCC Update
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 15 Mar 1999 22:28:59 GMT
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Viewed:
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1385 times
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In lugnet.trains, Matthew Bates writes:
> In lugnet.trains, Martin Legault writes:
>
> > Didn't open a motor yet but with the description I would say that it is a
> > thermistor (thermal resistive device). Better find a way to live it in place.
>
> I suppose I could try soldering wires to it and thereby put it between the DCC
> decoder output and the motor. Does it need to be thermally coupled to the
> motor though or is the heat of the current passing through it sufficient?
>
> Matt
Hard to say, some are able to heat by themself and some need external heat
source, but the first type normaly stay "open" as long as there is power
applied to them while the second type slowly became less resistive when they
cool down, so if there is a good thermal path betwen it and the motor you
should make sure that there is still one.
Martin
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Message has 2 Replies:
 | | Re: Train Depot DCC Update
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| Soete Ludo wrote: Hi, I read your answer to Matt Bates concerning the lego train motor. It's so that if you overload the speed regulator that the voltage will drop down due to an internal cirquit into the voltage regulator. This is a LM317 and (...) (26 years ago, 16-Mar-99, to lugnet.trains)
| | | Re: Train Depot DCC Update
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| <snip every thing> After opening my first lego motor, I took a look at that rounded part. Just with my technical knowledge (didn't perform anytest on it) I defenetivly say it is a thermistor and it doesn't have to be heated by the motor, just the (...) (26 years ago, 16-Mar-99, to lugnet.trains)
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Message is in Reply To:
| | Re: Train Depot DCC Update
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| (...) I suppose I could try soldering wires to it and thereby put it between the DCC decoder output and the motor. Does it need to be thermally coupled to the motor though or is the heat of the current passing through it sufficient? Matt (26 years ago, 15-Mar-99, to lugnet.trains)
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