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This is a collection of
inverting and non-inverting active high pass filter circuits. I included
one, two three, four and six pole filter circuits. You can change the
component value ratios shown to achieve any frequency cut-off you may need. The
circuit does not specify an operational amplifier. The circuits should be
used to select the needed resistor and capacitor components for a particular
frequency knee and slope.
Click on Drawing Below to view PDF version of Schematic
