For an SCR the average & rms values of current are I/4 & I/2 respectively. Calculate the average on-state current rating (ITAV). Take maximum RMS on-state current = 35 A.

To calculate the average on-state current rating (I_TAV), we can use the relationship between the average current (I_avg) and the maximum RMS on-state current (I_RMS_max).

Given:

– I_avg = I/4

– I_RMS = I/2

– I_RMS_max = 35 A

First, let’s find the relationship from the RMS current.

1. From the RMS value:

[

I = 2 times I_RMS = 2 times (I/2) = I

]

Here we have confirmed the relationship as consistent.

2. Now we can calculate the average current based on the provided average value:

[

I_{TAV} = I_{avg} = frac{I_{RMS} times sqrt{2}}{2} = frac{35 times sqrt{2}}{2} = 35 / (2/sqrt{2}) = 35 / 0.7071 approx 24.75 A

]

Therefore, the average on-state current rating (I_TAV) is approximately 24.75 A.