Mad I.D.
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- Aug 21, 2009
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Hi.
I'm using coaxial cables to transfer power from the power supply to the device (IC under test). Since there is danger from resonance peaks in the supply's output impedance, I'm trying to model the whole system and find the solution (in form of additional damping).
For e.q, my coax is 50 ohms with 101pF/m. Let's say I'm using 1m of it. From Zo=sqrt(L/C) i calculate that L is 250nH. DC resistance/km is also given. Can I just model the cable as L&R in series, and C at the end to ground?
I'm really not sure if the model is correct and unfortunately didn't manage to google anything useful.
Thank you.
I'm using coaxial cables to transfer power from the power supply to the device (IC under test). Since there is danger from resonance peaks in the supply's output impedance, I'm trying to model the whole system and find the solution (in form of additional damping).
For e.q, my coax is 50 ohms with 101pF/m. Let's say I'm using 1m of it. From Zo=sqrt(L/C) i calculate that L is 250nH. DC resistance/km is also given. Can I just model the cable as L&R in series, and C at the end to ground?
I'm really not sure if the model is correct and unfortunately didn't manage to google anything useful.
Thank you.