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PostPosted: 12 Jun 2017 11:50 
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Joined: 07 Jun 2017 07:16
Posts: 3
What I thought would be a simple project is driving me nuts!
I'm trying to use a 6W 400mA solar panel to charge a portable usb battery charger for phones.
I'm using an LM2576T adjustable buck regulator. But whenever it's connected to the panel the panels voltage drops to 4-4.5 volts regardless of the duty cycle of the regulator.
I read that solar panels don't like having square waves pulled out of them so I tried arbitrarily large capacitances on the input but still nothing!!
What am I missing?


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PostPosted: 19 Jun 2017 11:15 
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Joined: 27 Jun 2010 12:07
Posts: 817
Location: England
This forum is for MikroElektronika products, not for general electronics.

You would be much better off here....
http://www.edaboard.com


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