Bypass / Blocking Diodes

red31 wrote:


So increases in the sun can not increase current while voltage stays the same?

So the current I measure while shorting a panel is not current flow since there is no voltage?

One more time: If the current goes up, the voltage MUST also go up.....if the load resistance stays the same.

Now....if there is a controller at work, such that the initial current flow was limited so as to keep the voltage up to a certain point.....then as the input voltage rises because of more sunlight input, the controller allows more current to flow and keeps the voltage at the output the same. You can't directly relate output current to input voltage IF there is active electronics in between.

And in your second question, there is some voltage present it's just so small that you can't measure it. In that case, the load resistance is almost zero and it takes almost zero voltage to make current flow, up to the capacity of the input device....ALMOST zero voltage but not zero.