Week 9 Ch 8,

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Week 9 Ch 8,

• Magnitude and phase response
• Properties
• Cascade and feedback composition

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Week 9 Ch 8,

• Magnitude and phase response
• Properties
• Cascade and feedback composition

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1. Magnitude and phase response
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Examples
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p/2
-p/2
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p/2
-p/2
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Week 9 Ch 8,

• Magnitude and phase response
• Properties
• Cascade and feedback composition

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2 Properties
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Corollary 1
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Corollary 2
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Corollary 1
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Corollary 2
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Week 9 Ch 8,

• Magnitude and phase response
• Properties
• Cascade and feedback composition

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Increasing bandwidth by proportional negative
feedback
Suppose open loop frequency response is
So 3 db bandwidth is given by
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-
The closed loop frequency response is
whose 3 db bandwidth is