Hello everybody,

I am doing decoupling analysis for one power net.How to calculate the Peak Transient current ?

Total input current combined for all the DDR IC is 792.00mA .

Got the answer

Maximum Transient Current:

A short-lived oscillation/decay in a system caused by a sudden change of voltage or current expressed as a function of time exponentially. The universal time constant formula is given by-

Change= (Final-start)(1-e-t/τ)

ITransient = Imax (1- e-t/τ)

Where,

τ= L/R

e= eular’s number ≈ 2.7182818

e.g. t=1 sec , τ= 1

Itransient = Imax(1- e-1)= Imax* 0.6321 ≈ 0.5*Imax

I think this is correct .

Got the answer

Maximum Transient Current:

A short-lived oscillation/decay in a system caused by a sudden change of voltage or current expressed as a function of time exponentially. The universal time constant formula is given by-

Change= (Final-start)(1-e-t/τ)

ITransient = Imax (1- e-t/τ)

Where,

τ= L/R

e= eular’s number ≈ 2.7182818

e.g. t=1 sec , τ= 1

Itransient = Imax(1- e-1)= Imax* 0.6321 ≈ 0.5*Imax

I think this is correct .