Subject:
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Re: Long term effect of PWM on train motors?
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 21 Jul 2004 15:37:17 GMT
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Viewed:
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1096 times
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Guido-
I wouldn’t get too concerned with the “long term” affects of PWM on LEGO train
motors for a variety of reasons:
1. TLC already uses PWM in the RCXs
2. LEGO train motors don’t last all that long anyway (we kill a lot of them
running trains 5 hours a day, 6 days a week, for 12 weeks at our annual SDMRRM
show just using DC). By comparison, the HO scale club across the walkway
wouldn’t wear out 1 motor over the same period.
3. The cost and way-cool benefits of PWM via DCC far outweigh the costs of
replacing motors.
4. Getting the voltage right using off-the-shelf DCC controllers is a bigger
issue just using PWM itself.
BTW, I don’t like the idea of using 1 train in non-DCC mode that most DCC
controllers allow. This tends to overheat motors (a primary cause of failure)
and makes a audio racket.
-Ted
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Message is in Reply To:
 | | Long term effect of PWM on train motors?
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| Hi, I went through a lot of postings concerning PWM (Pulse Width Modulation) in this newsgroup. My conclusion is that it is possible. However, I haven't seen any description of the longterm (after) effects of PWM on the motor itself. So I have a few (...) (20 years ago, 21-Jul-04, to lugnet.trains)
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