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Author Topic: Shared Power Supply  (Read 680 times)

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Offline z.s.tar.gzTopic starter

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Shared Power Supply
« on: May 26, 2010, 05:43:40 AM »
I need to use the same power supply for both my servos and my mcu.
Right now my basic system is:  Solar > LDO Regulator > Supercapacitors > Servos -and- > Charge Pump > mcu and ir sensors.

When I run it though I don't get the full 5.0V out of the charge pump for the mcu. If I use batteries for the servos and seperate them from the power then I get 5.0V on my charge pump which makes everything fine for mcu timing and whatnot.

Is there any way I can fix this to where I only have to use the capacitors?
Save yourself the typing. Just call me Zach.

Offline Cristi_Neagu

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Re: Shared Power Supply
« Reply #1 on: May 26, 2010, 06:29:08 AM »
You'll have to tell us for what maximum voltage the capacitors are rated for. Even with an LDO, you need at least 5.6V to get a stable 5V after it.
Also, what voltage does the solar panel outputs?

 


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