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about USB Remote Battery

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Offline es_maam

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about USB Remote Battery
« on: 10 / January / 2009, 09:16:24 »
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Hi everyone:
I'm working on my usb remote for A 590 but I have a question:
How do you get a voltage between 3.7V and 4.5V with a battery?.
Actually I don't know if 3,7 and 4,5V are the minimum values...In that case...what are the maximum ones?
Anybody knows if you can use one of 6V without problems?
Thanks!!!
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Offline zeno

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Re: about USB Remote Battery
« Reply #1 on: 10 / January / 2009, 10:30:19 »
A normal (computer) USB connection provides 5 volts across the power pins, so that is definitely safe. 4 rechargeable AAA or AA cells will give you that (the 4-cell packs that R/C people use in their models typically deliver 4.8-5.0 volts). 
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Offline dom-a

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Re: about USB Remote Battery
« Reply #2 on: 10 / January / 2009, 10:44:27 »
I used 2 x 3v button cells and a voltage regulator.
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