Re: Reactance measurment and current sources
- From: john <conphiloso@xxxxxxxxxxx>
- Date: Tue, 25 Sep 2007 10:19:32 -0700
On Sep 24, 9:27 pm, john <conphil...@xxxxxxxxxxx> wrote:
Hi,
Are you really using 6H inductors? Where did you get
them? What's their internal resistance and ac loss?
Did you know their ac resistance is much higher than
their DC resistance? That's the whole poor Q thing.
Yes, I am using 6H inductors. I got them from soem comapny in
california . I do not remember the name. The DC resistance is 2.5kohm.
I do not know the AC loss. But the plan was to get high impedancw from
them at 10kHZ.
So, 2 x pi x f x L = 370Kohm, the intended load is between 1 to
10kohm , so most of the current will go to the load not inductors.
Now, I need to measure the current in both branches.
Also, did you know you can make simulated inductors
from opamps? As for me, I like to make auto-zero
servo loops when I have to kill a DC offset error.
Can you advice in detail that how to do it efficiently?
Thanks
John
.
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