Regarding a phototransistor such as the KTIR0821DS can someone kindly explain what the anode and cathode are for exactly?
Seems like one of those things that are simple if you know how, and I will probably kick myself once I know it, but I thought it was to power the component. I understand that light acts as the base, but the anode and cathode do not seem to power it, as a power line through these seems to make no difference to its operation.
Also wondering how I can make it operate so that there's more of a difference in voltage output depending on light.
Basically I'm just trying to figure out how they work exactly.
Seems like one of those things that are simple if you know how, and I will probably kick myself once I know it, but I thought it was to power the component. I understand that light acts as the base, but the anode and cathode do not seem to power it, as a power line through these seems to make no difference to its operation.
Also wondering how I can make it operate so that there's more of a difference in voltage output depending on light.
Basically I'm just trying to figure out how they work exactly.