Subject:
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Re: Proper power supply for a 1.0?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Thu, 23 Aug 2001 23:32:55 GMT
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Viewed:
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1775 times
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Da Byte wrote:
> In lugnet.robotics.rcx, Dean Husby writes:
> > "James J. Trobaugh" wrote:
> >
> > > What is the proper voltage for a external power supply for a 1.0 RCX? Can I
> > > use the power supply that goes with the 9v train speed regulator? I believe
> > > the train transformer outputs 12VAC.
> > >
> > > jt
> >
> > I've used the Train Transformers with great success. If you look close at your
> > RCX you'll notice 9-12~
> > Anything from 9 to 12 volts AC or DC will work fine. Though to prevent your
> > RCX's Diode Bridge from burning out AC is better. (Shares the load) I've had
> > RCX's power for weeks on the train transformers with no problems. Just be aware
> > that the RCX output will jump to around 9.3 volts. No danger to LEGO items but
> > any custom items might not like it.
> >
> > Dean
> > --
> > Dean Husby
> > LUGNET Member #320
> > TFM's LEGO Workshop - www.akasa.bc.ca/tfm
> > The Vancouver LEGO Club - www.akasa.bc.ca/vlc/
>
> I'd like to be cutting in to this transformer conversation, since ...
> I'd like to know what kind of adapter I could use (and how) for supplying my
> RCX with power, since it has no inlet.
> I have tried to use DC adapters for 6, 9, and 12 Volts, all without success.
> I connected them to the plates inside the battery compartment (with the
> right polarity), but the RCX didn't even squeek. None of them supplied more
> than 1.25 Ampères of current, however. What is the solution to this (except
> for buying an RCX from the RIS 1.0)?
First off have you connected the right two plates? First, I'd suggest using a 9 volt
battery to find the right two plates. The RCX has built in reversed polarity so with
a 9volt battery you won't damage anything.
THEN ONLY USE 9 volts (regulated) for the input. I've done this with my Scout and it
works fine.
I actually use a 9 volt regulator package that makes sure I don't go over. I also
have a relay and a 9 volt battery to hold the memory when the power is off.
You may notice that there is a little slit at the bottom of your RCX where a ribbon
cable can snake out of the battery box from the RCX with the battery lid on. LEGO
has done this for the 1.5 and Scout. So I'll bet they do the same thing.
Hope That helps.
Dean
--
Dean Husby
LUGNET Member #320
TFM's LEGO Workshop - www.akasa.bc.ca/tfm
The Vancouver LEGO Club - www.akasa.bc.ca/vlc/
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Message is in Reply To:
 | | Re: Proper power supply for a 1.0?
|
| (...) I'd like to be cutting in to this transformer conversation, since ... I'd like to know what kind of adapter I could use (and how) for supplying my RCX with power, since it has no inlet. I have tried to use DC adapters for 6, 9, and 12 Volts, (...) (23 years ago, 23-Aug-01, to lugnet.robotics.rcx)
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