avihaio
Junior Member level 2
Hi,
I'd like to measure currents of ~20uA-2mA using an optocoupler.
The problem is that I never find how the optocoupler works under low uA forward currents.
I need it for an isolated measure of the current in the secondary side of a flyback where the only voltage I have is the output voltage of the converter
I'm looking for suggestion for a linear optocoupler who can do this and how to know from the datasheet if it can measure these currents.
Also suggestions to alternatives can be good.
Thanks
I'd like to measure currents of ~20uA-2mA using an optocoupler.
The problem is that I never find how the optocoupler works under low uA forward currents.
I need it for an isolated measure of the current in the secondary side of a flyback where the only voltage I have is the output voltage of the converter
I'm looking for suggestion for a linear optocoupler who can do this and how to know from the datasheet if it can measure these currents.
Also suggestions to alternatives can be good.
Thanks