HPF , BPFand BSP

Theory of high pass filter:
High pass filter allow to pass the wanted high signal and blocked to the low unwanted signal.
Explains of its:

LC high pass filterFrequency response of LC high pass filter
It is just opposite to Low pass filter .It has capacitor in series and inductor in parallel .The capacitor allow to the high signal and blocked to the low signal .The inductor allow to the low signal and blocked to the high frequency .So its out put is high frequency signal.For this uses the proper value of capacitor and inductor .
Theory of band pass filter:
In LC band pass filter it allow to the certain bandwidth signal and blocked to the below and above to this bandwidth signal.
Explains of its:

LC band pass filterfrequency response of LC band pass filter
Functions of cap actor and inductor it only allow to pass the certain bandwidth of frequencies.We must choose the proper value of these.
Theory of band stop filter:
It blocked to the certain wanted bandwidth of frequencies and allow to pass the below and above to it .

Band stop filterFrequency response of band stop filter
Note:There are other type of filter ,but their working principles is similar .If you are try to construct desire filter you must pays to attention about value of capacitor ,inductor ,resister, its cutoff frequencies, efficiency ,gain and uses of its.

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