|
Posted on:
|
Attached files:
-
test.JPG
4.9 KB, 1351 downloads
Hi folks, I know that, in case of low pass filter, or high pass filter, the cut off frequency is equal to 1/2*pi*RC. So how about if I have a R and C in parallel? does it behave as a low pass filter? does it have the same freq? Thx, Thomas
|
Posted on:
|
>So how about if I have a R and C in parallel? does it behave as a low >pass filter? Without additional series element? No. Or is the input driven by a current source?
|
Posted on:
|
The voltage at the input and the voltage at the output are equal inthis circuit.
|
Posted on:
|
Attached files:
-
test.JPG
5.9 KB, 1110 downloads
So if the R//C does not have any influence on the frequency, how about this circuit? How can we calculate the cut off freq of it? Thanks
|
Posted on:
|
In the last circuit both resistors must be calculated as parallel.
Watch this topic
Disable multi-page view