Author Topic: power supply  (Read 1414 times)

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Offline dellagdTopic starter

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power supply
« on: March 11, 2009, 06:16:09 AM »
Quote
Now I must point out that this schematic (and the following tutorial instructions) is for if you decided to use an RC battery pack (or an assembly of batteries equal to 6V or greater). But if you went with the battery holder method, you must make the following changes:

why would we need to make the changes?
is there any difference between a 6v RC pack and 4 batteries put together(1.5x4=6!)
as far as I can see, there is no difference between the 2????
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Offline dellagdTopic starter

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Re: power supply
« Reply #1 on: March 11, 2009, 06:33:37 AM »
ok, now I get it, but can I subsitute 4 AA for a 6v battery pack/RC pack?
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Offline Trumpkin

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Re: power supply
« Reply #2 on: March 11, 2009, 08:50:42 AM »
You could use the 4xAA pack with out the 9 volt but the batteries would not last very long. If you are using a rechargable battery pack such as an NiMH pack you do not need the 9 volt battery because rechargable packs usually have enough mah for the electronics and servos. Just as a note, if you use motors you would want to use a seperate battery pack because motors make a lot of electrical noise.
« Last Edit: March 11, 2009, 08:57:31 AM by Trumpkin »
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Offline chelmi

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Re: power supply
« Reply #3 on: March 11, 2009, 10:05:02 AM »
ok, now I get it, but can I subsitute 4 AA for a 6v battery pack/RC pack?

If you use non rechargeable AA batteries, then the answer is yes (as you said 4*1.5 = 6). But they wont last very long.
If you use rechargeable batteries then 4 batteries wont be enough since a rechargeable AA battery provides 1.2V. That's why 6v battery packs are made of
5 cells.

Offline dellagdTopic starter

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Re: power supply
« Reply #4 on: March 11, 2009, 01:50:25 PM »
ok thanks
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