S08_Lecture10 - Lecture 10 ECE 324 Electronics II Doug...

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February 22, 2008 Electronics II ©2008 Douglas Looze 1 Lecture 10 ECE 324 Electronics II Doug Looze
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February 22, 2008 Electronics II ©2008 Douglas Looze 2 Announcements Homework 2 available Due Monday, March 3 Project 1 available on course website Prelab next Tuesday @ 2:30 PM Lab Tuesday or Wednesday
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February 22, 2008 Electronics II ©2008 Douglas Looze 3 Last Time Generic feedback configuration A i x o x β s x - Amplifier (forward transfer function) A Feedback network Loop transfer function A Closed loop transfer function (feedback) 1 o f s x A A x A = = +
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February 22, 2008 Electronics II ©2008 Douglas Looze 4 Feedback advantages illustrated Gain sensitivity Other advantages Noise reduction Reduce distortion Bandwidth increase (today) Modify resistances (today) Disadvantages Gain reduction Stability
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February 22, 2008 Electronics II ©2008 Douglas Looze 5 Generic feedback configuration A i x o x β s x - Amplifier (forward transfer function) A Feedback network Loop transfer function A Closed loop transfer function (feedback) 1 o f s x A A x A = = + 1 1 i s x x A = +
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February 22, 2008 Electronics II ©2008 Douglas Looze 6 Today Bandwidth of ideal feedback Series-shunt connection
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S08_Lecture10 - Lecture 10 ECE 324 Electronics II Doug...

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