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Active Filters: High Pass
Last Updated on: Thursday, May 15, 2008 09:53 AM

Active Filter -- Main Page
Circuits Designed by Dave Johnson, P.E. :

  • HIGH PASS ACTIVE FILTER COLLECTION
    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.
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Active 2nd Order Filters:   (electronic circuit added 7/03)

Akerberg-Mossberg AM Second Order Highpass inverting:   (electronic design added 6/07)

Basic Introduction to Filters:   Application Notes on active, passive and switched capacitor filters, document in PDF format (app note added 4/02)

Berka-Herpy BH Second Order Highpass non-inverting:   (electronic design added 6/07)

Butterworth Filter:   (project / circuit added 9/06)

Butterworth Filters:   (electronic circuit added 7/03)

Chebyshe Volt Bandpass Filter:   (electronic circuit added 7/03)

Chebyshe Volt/Butterworth Filters:   (electronic circuit added 7/03)

First Order Highpass I non-inverting:   (electronic design added 6/07)

First Order Highpass II non-inverting:   (electronic design added 6/07)

First Order Highpass III inverting:   (electronic design added 6/07)

First Order Highpass IV inverting:   (electronic design added 6/07)

Fliege Second Order Highpass non-inverting:   (electronic design added 6/07)

Highpass Filters Use Modified Equalelement Design:   05/24/01 EDN-Design Ideas / (added 5/03) Using a modified equal-element design for a lumped-circuit lowpass filter has several advantages over the well-known equal-element design (Reference 1 and Reference 2). The modified design exhibits superior passband performance with only modest degradation of stopband selectivity. Moreover, the ....

KHN Inverting Input Second Order Highpass inverting:   (electronic design added 6/07)

KHN Non-Inverting Input Second Order Highpass non-inverting:   (electronic design added 6/07)

Mikhael-Bhattacharyya MB Second Order Highpass non-inverting:   (electronic design added 6/07)

Multiple Feedback MFB Second Order Highpass inverting:   (electronic design added 6/07)

Sallen-Key SK Second Order Highpass I non-inverting:   (electronic design added 6/07)

Sallen-Key SK Second Order Highpass II non-inverting:   (electronic design added 6/07)

Twin-T Second Order Highpass non-inverting:   (electronic design added 6/07)

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