Answer by Olin Lathrop for Solar panel charging circuit
It seems at a fundamental level, the panel puts out less power than the thing you are trying to power wants. That means you can't "convert" your way out of this. You can convert some combination of...
View ArticleClik here to view.
Answer by Yrjo Koyen for Solar panel charging circuit
If your 18V and 280mA are respectively Voc (open circuit voltage the solar cell can produce) and Isc (short circuit current), then that means the cell can produce 280mA of current at an output voltage...
View ArticleAnswer by Rick van Schijndel for Solar panel charging circuit
What you want is some kind of way to limit the current. There are buck converters which have a potentiometer to do this, which may or may no be sufficient for your purpose, as this is manual labor. If...
View ArticleAnswer by Damien for Solar panel charging circuit
First, you need to know more about your solar panel characteristics. 18V and 280 mA doesn't tell you much, is it open circuit voltage and short circuit current or is it values at maximum operating...
View ArticleAnswer by user3418620 for Solar panel charging circuit
The power bank is usually a bank of individual LiIon or LiPo cells in series (or parallel and series depending on the current they output). They have a specific charging profile with specific current...
View ArticleSolar panel charging circuit
Like so many else trying to charge a power bank from a solar panel:I've got a solar panel claiming 18V and 280 mA, so 5W and a 2800 mAh power bank expecting USB in so 5V 1A. The simple "circuit" I've...
View Article