- Im I stupid or can't the Prizm calculate this?
- 13 Feb 2016 05:38:19 am
- Last edited by lirkaren on 14 Feb 2016 03:32:25 pm; edited 1 time in total
I got a filter that looks like this:
--------R1----|------R2----|-------
U_in...........L1.............L2........U_out
---------------|-------------|-------
The dots should not be in the illustration but using "space" didn't work...
R1=R2=13 Ohm
L1=L2=25 mH
U_in(t)=1.0*sin(314*t)
I wanted to calculate the angel of U_out in proportion to U_in in radians.
U_L1 = U_in * (ZL1//(R2+ZL2)) / (R1+ZL1//(R2+ZL2)) = 0.234 + j0.283
U_L2 = U_L1 * (ZL2 / (R2+ZL2) = -0.063 + j0.179
The angle for U_L2 = Atan(0.179/(-0.063) = 1.13 rad. This awnser is wrong.
If I go to setup and Complex Mode and set it to r∠θ and enter (-0.063)+0.179i I gives me the right angle of 1.9 rad.
I am guessing that it's me that is stupid but I don't have another calculator to confirm it, so can anyone help me with what I am doing wrong?
Thanks!
--------R1----|------R2----|-------
U_in...........L1.............L2........U_out
---------------|-------------|-------
The dots should not be in the illustration but using "space" didn't work...
R1=R2=13 Ohm
L1=L2=25 mH
U_in(t)=1.0*sin(314*t)
I wanted to calculate the angel of U_out in proportion to U_in in radians.
U_L1 = U_in * (ZL1//(R2+ZL2)) / (R1+ZL1//(R2+ZL2)) = 0.234 + j0.283
U_L2 = U_L1 * (ZL2 / (R2+ZL2) = -0.063 + j0.179
The angle for U_L2 = Atan(0.179/(-0.063) = 1.13 rad. This awnser is wrong.
If I go to setup and Complex Mode and set it to r∠θ and enter (-0.063)+0.179i I gives me the right angle of 1.9 rad.
I am guessing that it's me that is stupid but I don't have another calculator to confirm it, so can anyone help me with what I am doing wrong?
Thanks!