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In lugnet.technic, Frank Filz writes:
> > (and in fact hearsay at the time of the 1.5 introduction was that this was
> > precisely why it was omitted, that they had too many field returns of the
> > 1.0 RCX with burned out bridge rectifiers... not that it was a cost savings
> > in manufacturing driven change)
>
> I'd be a little surprised at a bridge rectifier which couldn't accept DC. Many
> electronic appliances have them these days so that it doesn't really matter
> what kind of wall wart you use, so long as the voltage is in the right range.
> The wall wart can supply AC or DC, and it doesn't matter what the polarity of
> the DC is.
The main problem comes from the heat generated. This isn't a problem, unless
you're driving motors fairly constantly with your RCX, but can eventually
cause the diodes to break down.
Of course, when one half of the rectifier goes, you can always reverse the
supply polarity & use the other half, until it goes too!
ROSCO
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Message is in Reply To:
 | | Re: Powering motors from the mains
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| (...) I'd be a little surprised at a bridge rectifier which couldn't accept DC. Many electronic appliances have them these days so that it doesn't really matter what kind of wall wart you use, so long as the voltage is in the right range. The wall (...) (22 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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