dreamyboy_999
Member level 2
I am using a current sense amplifier in a solar harvesting circuit which uses a SEPIC converter in order to adjust the amount of power drawn from the solar panel. I am using a 28m sense resistor and the voltage drop across the resistor at some operating point is 1.2 mv. I have used a multimeter to measure the voltage drop which I guess gives the average or DC component. when I multiply it by the gain of the amplifier , it is different from the output of the amplifier (again I use a multimeter to measure the output). I have tested with current sense amplifier with a pure DC signal and it is quite accurate...but I have this problem in my solar harvesting circuit.....