Pole quality factor (Q) enhancement technique for notch filters
An enhanced pole quality factor (Q) notch filter section circuit includes an active biquadratic notch filter section and a pole quality factor enhancement amplifier responsive to the output of the biquadratic notch filter section for providing at the input of the biquadratic notch filter section neg...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An enhanced pole quality factor (Q) notch filter section circuit includes an active biquadratic notch filter section and a pole quality factor enhancement amplifier responsive to the output of the biquadratic notch filter section for providing at the input of the biquadratic notch filter section negative feedback in pass and stop bands of frequencies and positive feedback in the transition range of frequencies between the pass and stop bands of frequencies. |
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