Hello everyone, just got side tracked and I wanted to build a 'big' solar charger for my video camera that requires 2.1 amps at 5v.
I bought a solar panel from Maplin down Christchurch for 15 quid it was a 2.4w at 12v (works out to be about 0.2 Amp). My idea was for it to be converteed down to 5v so i can feed it in to a power bank i hope to buy from ebay.http://www.ebay.co.uk/itm/10000mAh-External-Battery-Charger-Power-Bank-2-USB-For-Ipad-iPhone-4-4S-MID-HTC-/270939385624?pt=LH_DefaultDomain_3&hash=item3f153eef18
My initial idea was to put the 12v solar panel into a 5v regulator I know it wouldn't be efficient but it would charge...
In reality when I hooked it up to a multi-metre and I was receiving around 18v. Though so high i plugged it in to a low drop out regulator to see what I would get. I didn't get any voltage on the other side. I was wondering if any one had any ideas on what I could do do bring the 12-20v solar panel to a steady voltage regardless of current at the moment at 5v.
Thank you for reading Trevor Boultwood