Subject:
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Re: New page about #4548 Train Controller.
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Newsgroups:
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lugnet.trains
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Date:
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Sat, 27 Jul 2002 01:19:29 GMT
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Viewed:
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801 times
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We have been experimenting with an external bridge rectifier for our Rail
Racer events. The only drawback is that the one we picked out (lack of
electronics experience) draws 1.5 volts away from the output going to the
track. Not a big fairness problem when one is used for each track. But
very noticeable when it comes to racing the big boys. I'm sure there is a
better way. I'd like to see some new info on this as well.
Rob
National Rail Racer 2002 Champion
Midsouth Lego Train Club
www.msltc.org
"Scott Lyttle" <datafx7@yahoo.com> wrote in message
news:Gzv7nL.GH6@lugnet.com...
> I haven't looked at the schematic, but would it be possible to add some • type
> of rectifier in there? (I'm not an electrical engineer, but I remember
> something about a rectifier allowing current to pass "one way"...
>
> And I think I know exactly what application you're wanting it for...
>
> By the way James, some of the Lego people at Brickfest liked the Rail • Racers...
>
> -Scott
>
> In lugnet.trains, James Trobaugh writes:
> >
> > Sonnich,
> >
> > Nice site, good info. I want to figure out how to keep the controller • from
> > going in reverse, I just want it to only go forward no matter which way • the
> > knob is turned. Any clue on how do this?
> >
> > jt
> >
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Message has 2 Replies:
 | | Re: New page about #4548 Train Controller.
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| (...) You probably used one with regular diodes, where each diode gives a 0.7 voltage drop, which is standard. You could try Skottky diodes which IIRC give a 0.3 voltage drop each, leaving you with 8.4v. Other way would be to use some transistors (...) (22 years ago, 27-Jul-02, to lugnet.trains)
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Message is in Reply To:
| | Re: New page about #4548 Train Controller.
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| I haven't looked at the schematic, but would it be possible to add some type of rectifier in there? (I'm not an electrical engineer, but I remember something about a rectifier allowing current to pass "one way"... And I think I know exactly what (...) (22 years ago, 26-Jul-02, to lugnet.trains)
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