Subject:
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Re: Automatic RCX Battery Recharging
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 24 Sep 2002 10:11:44 GMT
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Viewed:
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2734 times
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> > I agree that there are much faster charging methods, but the slow one has
> > the advantage of simplicity (this was implied in the original question)...
> that's true, (if you think 1 8-pins IC + 1 Mosfet is not simple)
For you and me, that's simple... but even procurement of parts other than
plain vanilla ones may be a nightmare for someone who isn't more or less in
the electronics business (At least it is here in France)
> >
> > I wonder too how to design a connector with contacts that reliably carry 4
> > to 10 A currents and enable precise voltage measurement,
>
> Good question, I never asked my self.
> But it seems no problem at all, I've very bad contacts, (you can even
> hear and or see them sometimes when the charge process is going on).
> I guess bad contacts are burned clean or something like that. The method
> is patented and as far as I know there isn't any charge algoritme that
> beats it. Look here for more information
> http://www.galaxypower.com/
Thanks for the pointer.
> all this operated
> > by a robot with not-so-strong motors ?
> Are you afraid of destroying the motors sue to the charge process ?
> Because it's a current method, you can keep the voltage below a desired
> value.
No, (The RCX itself would probably be fried long before the motors!), I
meant that lego motors may not be powerful enough to engage good quality
connectors.
But as bad contacts seems no problem... I should probaply do some experiments !
Thanks,
Philo
www.philohome.com
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Message has 1 Reply:
 | | Re: Automatic RCX Battery Recharging
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| In order to protect the RCX from any type of power problems, would it make sense to disconect the RCX from the batteries first and have it run from an alternate power supply? or would this make it too complicated? I know little about electronics, is (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: Automatic RCX Battery Recharging
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| (...) that's true, (if you think 1 8-pins IC + 1 Mosfet is not simple) (...) Good question, I never asked my self. But it seems no problem at all, I've very bad contacts, (you can even hear and or see them sometimes when the charge process is going (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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