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Hello,
I want the frequency response of F(s,Iabc).
I don't see why that don't to display.
Do you can to help me.
Thank you very much
Solved! Go to Solution.
There are two ways to get a subscript:
If you want a subscript in a variable name, type "I.abc"
If you want to address an element of a vector, type "I[abc"
In your sheet you define i from 0 to 100 (an index variable) so don't type sx(i) {this defines a function}, type "sx[i", and sx becomes a vector of frequencies.
You need to read the help files about units--you're putting thrm in in some places and not others.
Hello Julia,
I see several culprits in your worksheet:
#1 you haven't defined the variable Iabc. And you're using it on both sides of your equation.
#2 you're using min and max as avariable. These are however, MathCad functions and shouldn't be overwritten.
#3 the same applies to your function s(i). s is a unit in MathCad.
Hope this helps
Raiko
I have corriged the errors that you say to me but that don"t work.
Why ? Please
Hi
I've checked your new sheet but I don't understand what you are trying to do. Is I a fixed value such as I = 4 A? Is abc an index? And is Iabc a vector (7th element in vector I) or is it a literal index? It will work when you define Iabc properly.
Also, in your function F(sa, Iabc) you're calling sa which isn't defined.
Raiko
I try to reproduce the example on page 3-4 of this extract : ssm2040 filter analysis part 1 'write that in google and the first site internet.
Can you help me, please.
Thank you very much
Hello Julia,
sorry I didn't answer your question, but I was off for a few daysw.
Glad that Fred lent a helping hand
Raiko
There are two ways to get a subscript:
If you want a subscript in a variable name, type "I.abc"
If you want to address an element of a vector, type "I[abc"
In your sheet you define i from 0 to 100 (an index variable) so don't type sx(i) {this defines a function}, type "sx[i", and sx becomes a vector of frequencies.
You need to read the help files about units--you're putting thrm in in some places and not others.
A last question :
I want the cutoff frequency fc(Iabc) and
why f(sa,Iabc) is not the same curve as on page 4 ! In the documentation it comes down to 1 * 10 ^ -5!
Thank's for your help
Fc(Iabc) , i want frequency of 50KHz.
Please, Thank's you
julia svenina karlsson wrote:
Fc(Iabc) , i want frequency of 50KHz.
That's a job for a solve block.
You are a king, thank you Fred