Hi,
Maybe both are correct.
May one shows trueRMS while the other shows average current.
You have to decide which one is the correct method.
Example:
* If you want to calculate the dissipated power in the indutor's wire --> use RMS
* If you want to calculate the magnetic force of the same inductor --> use average
Another example.
Lets say you have a
* stable supply voltage with value = Vs
* an about ideal resistor with value = R
* and an about ideal switching device, that switches the resistor at the power supply ON and OFF with a duty cycle of d_c
Then
I_avg = d_c × V /R
But
I_RMS = sqrt(d_c) × V / R
At 0% d_c both currents show the same value.
At 100% d_c both currents show the same value.
At 50% duty cycle I_RMS shows a 41% higher value than I_avg ....but both values are correct.
If you measure the current to calculate the power dissipation of a
* resistor --> use I_RMS
* zener --> use I_avg
Klaus