Subject:
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Re: Fairmont Speeder, small track powed motorcar
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Newsgroups:
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lugnet.trains, lugnet.parts
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Date:
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Mon, 28 Feb 2005 20:18:25 GMT
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Viewed:
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2154 times
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In lugnet.trains, Mathew Clayson wrote:
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For those interested. Inside is a current limiting resistor and diode to
supply correct polarity low DC current to a rechargable battery and motor.
The track charger supply is rated at 6v using a 4 cell battery. The motor
spins while charging, and continues to run off the battery for a minute or so
after charging. With the car picking up current from the track, this is fine
for hands off running. It’s a bit ackward for controlling the car, as it only
runs forward, and takes a minute to stop.
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A correction to the above. The cars run off of 3 volts max, not 6 volts! And the
rechargable device is not a battery, but a specalized capacitor.
http://www.coiltronics.com/products_supercapacitors.asp These caps have
amazing storage capacity, but are rated at 2.5v and 3v surge. The series diode
drops the 3 volt input down to ~2.5 volts.
I plan to use a 5volt version with a bridge diode and 3.5v voltage regulator for
some light up passenger cars.
Mat
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Message has 1 Reply:
 | | Re: Fairmont Speeder, small track powed motorcar
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| (...) What happens when you run it off 9V as you do? Is the capacitor getting overvoltage? Would this have an effect on long term durability? I had been thinking of playing iwth these to try to make a people mover using Racers track but without much (...) (20 years ago, 28-Feb-05, to lugnet.trains, lugnet.parts, FTX)
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Message is in Reply To:
| | Re: Fairmont Speeder, small track powed motorcar
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| (...) Thanks Rob, A few of them? Let me know if you want to sell one. 8) I'd like to build a hi-rail truck as well. Or I could switch the Speeder over to a bit charG chassis, and use the 5213 for the hi-rail. This was a fun proof of concept, to see (...) (20 years ago, 24-Feb-05, to lugnet.trains, FTX)
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