high pass filter using opamp

[rp276]

if a capacior is inserted in the negative feedback in series with the resistance...how the highpass filter will behave. please explain?

 

[kam1787]

there is lots of documentaion on HP filters if you Google it. Maybe try Google first, and then ask for help in understanding the article

http://www.electronics-tutorials.ws/filter/filter_6.html

http://www.swarthmore.edu/NatSci/echeeve1/Ref/FilterBkgrnd/Filters.html

http://www.radio-electronics.com/info/circuits/opamp_high_pass_filter/op_amp_highpassfilter.php

**broken link removed**

**broken link removed**

http://www.bowdenshobbycircuits.info/opamp.htm

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there is lots of documentaion on HP filters if you Google it. Maybe try Google first, and then ask for help in understanding the article

http://www.electronics-tutorials.ws/filter/filter_6.html

http://www.swarthmore.edu/NatSci/echeeve1/Ref/FilterBkgrnd/Filters.html

http://www.radio-electronics.com/info/circuits/opamp_high_pass_filter/op_amp_highpassfilter.php

http://www.electronicproducts.com/Op_Amp_High_Pass_Butterworth_Filter_Calculator.aspx

http://www.ece.tamu.edu/~kentesar/ELEN457/ELEN457_4.pdf

http://www.bowdenshobbycircuits.info/opamp.htm

 

[keith1200rs]

if a capacior is inserted in the negative feedback in series with the resistance...how the highpass filter will behave. please explain?

If there is no DC path between the output and the inverting input then the answer is "very badly". The opamp will saturate at one rail or the other.

Keith