Subject:
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Re: RCX Blowed up?
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 31 Oct 2000 21:28:53 GMT
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Viewed:
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850 times
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"Eelco Kooiker"wrote:
> What is wrong with my RCX? When I remove the batteries and wait some • hours,
> will it work then? (I hope)
> Are there anymore people who has this problem? Is it fixable? Or do I have
> to buy a new RCX before saterday?
>
> Regards, and still hoping,
>
>
Al rihgt ,
something about powersupply's,
The vallue written on a AC (alternating current)powersupply is the
effective-value (that means its the amount of energy of it) .
When AC is rectified and become DC after the rectifierbridge ther is a
condensator (elco) for filtering out the ripple (120Hz or 100Hz in Europe)
the it's truely DC and the we are talking about the top-value (amplitude) of
the AC-voltage.
Are you following me ?
This means that the DC-voltage is 1.41 (square root(2)) higher than the
effective-value.
Sample 12V AC becomes 12 * 1.41 = 16.9V DC minus the voltagelost over the
rectifiers (diode's) 2 * 0.7V = 15.5V.
The core of the RCX is working on 5V that means that the power regulator
must "eat " 10.5V !!
If you chose a AC-powersupply the take one with a outputvoltage from 8 to 9V
AC (8V is better you have then about 9.8V DC)
Regards
and hoped to cleer out somethings about this.
Rik Bos
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Message has 1 Reply:
 | | Re: RCX Blowed up?
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| (...) Doesn't Lego Sell the same power adapter for RCX as they do for Trains? I've been using that one with no problems so far... Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 31-Oct-00, to lugnet.robotics)
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Message is in Reply To:
| | RCX Blowed up?
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| Today I was using NQC for the first time using RCX Command Center. Because I have a 1.0 RCX I thought: I have two original Lego-adapters and why shouldn't I use one? So, for the first time I have the RCX, I used a powersuply. After some playing I (...) (24 years ago, 31-Oct-00, to lugnet.robotics)
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