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Feedback Systems(By Thomas Lee)
Introduction:
A solid understanding of feedback is critical to good circuit design, yet many practicing
engineers have at best a tenuous grasp of this important subject. We agree with MIT Professor
Jim Roberge’s feeling that “feedback is so fundamentally important that analog
engineers who don’t understand it should be legally barred from circuit design.” This
chapter is intended as but a brief overview of the foundations of classical control theory,
that is, the study of feedback in single-input, single-output, time-invariant, linear continuous-
time systems. |
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