Lecture 10 - Cascaded Filter and Stability.pptx

Lecture 10 - Cascaded Filter and Stability.pptx - BMEN 3350...

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BMEN 3350 – Biomedical Component and System Design Lecture 10 Cascaded Filters and Stability
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BMEN 3350 – Lecture 10 Practice – Finding Transfer Functions What is the transfer function for the following Sallen-Key Filter?
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BMEN 3350 – Lecture 10 Transfer Functions – Cascaded Filters What is the transfer function for the following active cascaded low-pass filter?
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BMEN 3350 – Lecture 10 Transfer Functions – Cascaded Filters What is the transfer function for the following passive cascaded low-pass filter?
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BMEN 3350 – Lecture 10 Why Are Active Filters Different? The term as long as z in2 is considerably larger than z out1 . Since R 0 is very small (<10Ω for most op amps), this holds true in most cases and the term can be neglected.
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BMEN 3350 – Lecture 10 Cascading Active and Passive Filters Based on what we just discussed, which would be the more valid way to cascade an active and passive high-pass filter?
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