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 08:56:34 GMT
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Viewed:
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742 times
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Rob Hendrix wrote:
> 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.
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 and a few relais, where the
power is sent to transistor base * collector. The transistor triggers a
relais, which controls the actual track current (no other components
involved, no voltage drop) Perhaps a few diodes before the transistors
to prevent them from getting damaged by high negative voltages.
(Just an amateur electronics here... this will need to be refined!)
Will see if I can draw something up, but won't be until monday.
--
Jan-Albert van Ree
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Message is in Reply To:
 | | Re: New page about #4548 Train Controller.
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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 (...) (22 years ago, 27-Jul-02, to lugnet.trains)
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