samiran_dam
Full Member level 2
Dear all,
I want measure the input capacitance of an inverter for the vinput range of 0 to 3.3 V
I am following the approach mentoined below:
1. at the input of the inverter I connect a dc voltage in series with a ac source.
2. then I am doing a parametric analysis (sweeping the dc value from 0 to 3.3 V) under which I am doing an ac analysis
3. Then I plot the imaganiray part of the V(F)/I(F) and multiply it with a certain frequency value to get the inverse of the capacitance value
the expression I am using in cadence spectre is: value(imag((VF("/net028") / IF("/VG/PLUS"))) 1)
is the method correct?
I want measure the input capacitance of an inverter for the vinput range of 0 to 3.3 V
I am following the approach mentoined below:
1. at the input of the inverter I connect a dc voltage in series with a ac source.
2. then I am doing a parametric analysis (sweeping the dc value from 0 to 3.3 V) under which I am doing an ac analysis
3. Then I plot the imaganiray part of the V(F)/I(F) and multiply it with a certain frequency value to get the inverse of the capacitance value
the expression I am using in cadence spectre is: value(imag((VF("/net028") / IF("/VG/PLUS"))) 1)
is the method correct?