I know there is lot of question asked about this topic before, I read them but there are some limitation on those circuits which make me ask this one.
I want to do analysis of main voltages(220/50Hz) in MATLAB. I want to visualize the harmonics and the change of the wave effect with Inductive and capacitance load. I have expeience in Digital electronics and little knowledge of analogue electronics.
I looked for this circuit from xoscope but this circuit is made for voltages less then 150 volts. I want to attenuate 220 voltages
is it possible? What would be the possible solution for this type of problem. How op-amp can help me in this problem?
and what are the maximum output voltage limitation to give input to sound card? I think max 1 volt but what are possible ranges? -1 to 1 or 0 to 1? I am little confused and fear to test with my sound card without authentic suggestion. Is there some good tutorial or some recomended study material with precisely bound to this topic?
This question may seem basic but I am asking this because I am not sure about my experience of sound card and I cannot afford to burn my sound card with making some circuit which I do not know what it does. Thanks