Alt-BEAM Archive
Message #00264
To: TurtleTek@aol.com, beam@corp.sgi.com
From: "Darcy Dueck" ddueck@hotmail.com
Date: Sun, 07 Feb 1999 16:52:55 MST
Subject: [alt-beam] Re: Current vs. Voltage
>To: dilbertpete@hotmail.com, beam@corp.sgi.com
>Mime-Version: 1.0
>Subject: Re: Current vs. Voltage
>
>> I am deciding to whether or not to add another solar panel to my
>> photovore, and I want to know one simple question.
>>
>> Which is better current or voltage to run my motors?
>>
>> Thanks in advance
>
>Greetings Pete and List,
>
>I had a similar question a few weeks ago and got similar answers. What
you may
>need to know is that if both solar cells aren't the same, the bot will
>actually move slower. I don't know if this is the same with connecting
them in
>series but it is when connecting in parallel. I don't know why this
>information isn't mentioned more often.
>Now, I have a few questions about this that never got answered the last
time:
>1)First of, Is this true? Or is it just another "BEAM myth"?
>2)If it's true, then why is it a mistake so often made? I see tons of
bots
>with mis-matched cells connected in parallel on "My bot" sites.
>3)Why does this happen? I guess the formula isn't "output current is
sum of
>cell currents", eh?
>4) Supply any other information you think we may need.
>
>Many Thanks,
>TurtleTek
>"Yu, shall I tell you what knowledge is? When you know a thing,
> say that you know it. When you do not know a thing, admit you
>do not know it. This is knowledge."
> - K'ung-fu Tzu (Confucius)
>
>PS: I'm about to open my new BEAM site in a few days. I'll be sure to
tell the
>list when I have.
>
Well, here goes.
If you hook up multiple solarcells (be sure they are the same type) in
series, you will get more voltage, but the current produced will be the
same. Likewise, if you hook them up in parallel, the voltage of the
solarcells will remain the same, but the current will be x times greater
(x is the number of cells).
_______________________________________________
Darcy Dueck
Red Deer, Alberta, Canada
ddueck@hotmail.com
http://www.geocities.com/eureka/concourse/5371/
______________________________________________________
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