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In lugnet.lego, Philippe Hurbain wrote:
> In lugnet.lego, Brian Davis wrote:
> > In lugnet.lego, Philippe Hurbain wrote:
> >
> > > A practical value is about 1A - NXT motor driver itself
> > > limits the current around 1A too.
> >
> > Ah, thank you - so running two stalled train motors would exceed the NXT output,
> > but running one train motor up to a stall conditions should be fine. Out of
> > curiosity, along with the output limitations on the NXT (1 A) and RCX (500 mA),
> > does anyone have the output limitations (voltage and current) on the train
> > transformer?
>
> The linear regulator inside is a 1.5A version if I remember well, but I may be
> wrong. Cross posted to lugnet.trains trying to get train guru opinion...
The Australian LEGO wall wart is marked 10V @ 7VA on the secondary. I don't
recall all the stuff I learnt about the relationship between VA and W, but that
seems to me to indicate about 0.7A. I believe this generally reduces as load
increases, but again I don't recall all that stuff... Philo?
M>ltc uses a home-built 3A transformer for our displays.
ROSCO
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Active threads in NXT programmable brick
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