Lecture 13: Continuous-Time (CT) Feedback and Control, Part 2

Additional examples today illustrate the use of feedback to reduce sensitivity to variable component parameters and crossover distortion in audio systems, and to control two unstable systems (magnetic levitation, inverted pendulum).

48mins

27 Jun 2017

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Lecture 11: Continuous-Time (CT) Frequency Response and Bode Plot

Bode plots are a simpler method of graphing the frequency response, using the poles and zeros of the system to construct asymptotes for each segment on a log-log plot. The Q factor affects the sharpness of peaks and drop-offs in the system.

53mins

27 Jun 2017

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Lecture 6: Laplace Transform

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Lecture 4: Continuous-Time (CT) Systems

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Lecture 3: Feedback, Poles, and Fundamental Modes

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Lecture 25: Audio CD

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Lecture 24: Modulation, Part 2

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Lecture 23: Modulation, Part 1

Efficient signal transmission and reception requires wavelengths matching the size of the antenna; for speech, this requires frequencies around the GHz range. Broadcast radio developed AM and FM to produce accurate reception of multiplexed signals.

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