| 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.
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									| Active 2nd Order Filters: | 
								
									| Basic Introduction to Filters: 
									application notes on active, passive and 
									switched capacitor filters, document in PDF 
									format | 
								
									| Butterworth Filters: | 
								
									| Chebyshe Volt / Butterworth Filters: | 
								
									| Chebyshe Volt Bandpass Filter: | 
								
									| Highpass Filters use Modified Equalelement 
									Design: EDN-Design Ideas / (added 5/03) 
									PDF contains multiple circuits - scroll to 
									find this circuit. |