High pass filters
- Thread starter skanes 1
- Start date
It will vary for various filters (ie. 1st order, second order etc...)
If you google high pass filter transfer function, you can find what it is you are looking for.
http://www.lmgtfy.com/?q=high+pass+filter+transfer+function
If you google high pass filter transfer function, you can find what it is you are looking for.
http://www.lmgtfy.com/?q=high+pass+filter+transfer+function
A high pass filter is simply running your output in series with a capacitor. The reason for this is that the impedance ("resistance") for a capacitor is:
(jωC)^-1
Remember that ω = 2∏f. Therefore, the impedance of a capacitor goes extremely low as the frequency goes extremely high, thereby allowing high frequencies to pass through OK. If you have a low frequency, your impedance will be come extremely high, thereby "cutting off" your output.
(jωC)^-1
Remember that ω = 2∏f. Therefore, the impedance of a capacitor goes extremely low as the frequency goes extremely high, thereby allowing high frequencies to pass through OK. If you have a low frequency, your impedance will be come extremely high, thereby "cutting off" your output.
