Subject:
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Re: LEGO Capacitors use on Trains?
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 8 Feb 2001 01:33:48 GMT
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Viewed:
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878 times
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In lugnet.trains, Martin Legault writes:
> there is some spec for the capacitor on TLC web site
> http://www.lego.com/dacta/elab/default.htm
>
>
>
> Specifications:
>
> 1 F (Farad) 2.5 volt electrolytic capacitor
> Operating voltage 2.5 normal
> Charging voltage maximum 4 volt
> Maximum charging and discharging current 0-250 mA
> Red LED indicator when fully charged at 2.5 volt
> Protected against reverse polarity; capacitor will not fully charge
> Charged to 2.5 V the capacitor will store about 3.125 J of energy
>
> the regulator (I tested 2) have output voltage of 3.0-3.1 Volts on setting #1
> and 4.2-4.3 volts on setting #2.
>
> At 3Volts the ligth is not brigth at all.
>
> the suggestion to use the capacitor was good but not working with that
> capacitor, again sorry to bring bad news.
>
> Martin
For those who
1) aren't electrical engineers,
2) don't mind using the occasional non-LEGO solution
and
3) have some soldering experience,
What _would_ be an appropriate specification for a capacitor to do the job
described? Just in case someone might like to try it out..
Kevin
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Message has 1 Reply:
 | | Re: LEGO Capacitors use on Trains?
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| (...) There is no good solution, unless you want to run your train at full speed for interval period in order to charge a big capacitor at 8-9Volts, then reduce the speed of the train and let the capacitor feed the ligth. Using that method the ligth (...) (24 years ago, 8-Feb-01, to lugnet.trains)
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Message is in Reply To:
| | Re: LEGO Capacitors use on Trains?
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| there is some spec for the capacitor on TLC web site (URL) 1 F (Farad) 2.5 volt electrolytic capacitor Operating voltage 2.5 normal Charging voltage maximum 4 volt Maximum charging and discharging current 0-250 mA Red LED indicator when fully (...) (24 years ago, 7-Feb-01, to lugnet.trains)
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