Electronic Feedback Systems (1985)
By James K. Roberge
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Description
Electronic Feedback Systems presents material that practicing engineers need for the effective design and analysis of electronic and electromechanical systems that utilize feedback. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
| Name | Description | Released | Price | ||
|---|---|---|---|---|---|
| 1 | VideoLecture 1: Introduction and Basic Concepts | This lecture covers the definition of a feedback system, the closed loop gain, block diagrams, loop transmission, desensitivity, and impedance modification via feedback. | 5/17/2013 | Free | View in iTunes |
| 2 | VideoLecture 2: Effects of Feedback on Noise and Nonlinearities | This lecture covers attenuation of noise applied following amplification, moderation of nonlinearities located in the forward path, intentional inclusion of a nonlinearity in the feedback path, demonstration of a nonlinear audio amplifier with added noise | 5/17/2013 | Free | View in iTunes |
| 3 | VideoLecture 3: Introduction to Systems with Dynamics | This lecture covers first and second order systems, transient response, a demonstration illustrating approximating a higher-order system as a first or second order one, realtionships between step response and frequency response, and Bode plots. | 5/17/2013 | Free | View in iTunes |
| 4 | VideoLecture 4: Stability | This lecture covers stability, special case of linear systems, behavior of first, second, and third-order systems as a function of loop-transmission magnitude, Routh Criterion, root-locus analysis, and sample construction for a second-order system. | 5/17/2013 | Free | View in iTunes |
| 5 | VideoLecture 5: Root Locus | This lecture covers the location of closed-loop poles, rules that speed construction of the root-locus diagram, and examples of these things. | 5/17/2013 | Free | View in iTunes |
| 6 | VideoLecture 6: More Root Locus | This lecture covers additional examples, root locus contours, the location of closed-loop zones, and a demonstration of a band-pass and a rejection amplifier. | 5/17/2013 | Free | View in iTunes |
| 7 | VideoLecture 7: Stability via Frequency Response | This lecture covers Nyquist Criterion, development by mapping from s-place to the gain-phase plane, relative stability, closed-loop frequency response, and the Nichols Chart, including illustration with a 3-dimensional chart. | 5/17/2013 | Free | View in iTunes |
| 8 | VideoLecture 8: Compensation | This lecture covers examples of peaking determination, phase margin, gain margin, crossover frequency, the relationship between phase margin and peaking, indicators of relative stability, and compensation by changing the loop-transmission magnitude. | 5/17/2013 | Free | View in iTunes |
| 9 | VideoLecture 9: More Compensation | This lecture covers the use of a dominant pole and the advantage for regulators, and lead and lag compensation. | 5/17/2013 | Free | View in iTunes |
| 10 | VideoLecture 10: Compensation Example | This lecture covers compensating a gain-often amplifier, demonstration of performance that results with various types of compensation, and a summary of the advantages and disadvantages of four compensating techniques. | 5/17/2013 | Free | View in iTunes |
| 11 | VideoLecture 11: Feedback Compensation | This lecture covers the topology and exact loop transmission of feedback compensation, simplification for the case of large minor-loop transmission magnitude, and a popular operational amplifier configuration that uses feedback compensation. | 5/17/2013 | Free | View in iTunes |
| 12 | VideoLecture 12: Feedback Compensation of an Operational Amplifier | This lecture covers practical considerations, single-pole compensation including demonstrations, two-pole compensation, and a demonstration of improved desensitivity compared with one-pole compensation. | 5/17/2013 | Free | View in iTunes |
| 13 | VideoLecture 13: Operational Amplifier Compensation (continued) | This lecture covers potential minor-loop stability problems, slow roll-off compensation, and compensation that includes a zero with a demonstration of improvement with capacitive loading. | 5/17/2013 | Free | View in iTunes |
| 14 | VideoLecture 14: Linearized Analysis of Nonlinear Systems | This lecture covers the operating-point expansion, designing an example magnetic levitator, modeling compensation, and a practical way of determining system parameters. | 5/17/2013 | Free | View in iTunes |
| 15 | VideoLecture 15: Describing Functions | This lecture covers the derivation of the describing function, the approximation used, analysis of an oscillator, and the conditions for stable amplitude. | 5/17/2013 | Free | View in iTunes |
| 16 | VideoLecture 16: Describing Functions (continued) | This lecture covers analysis and a demonstration of a function generator, introduction to conditional stability, and a demonstration using amplifiers with two-pole compensation. | 5/17/2013 | Free | View in iTunes |
| 17 | VideoLecture 17: Conditional Stability | This lecture covers required types of loop transmissions and nonlinearities, confirmation by Bode and root-locus analysis, nonlinear compensation, and demonstrations of a conditionally-stable system with a saturating nonlinearity. | 5/17/2013 | Free | View in iTunes |
| 18 | VideoLecture 18: Oscillators (Intentional) | This lecture covers the Wienbridge topology and control of its amplitude by limiting, the quadrature oscillator, the use of a slow loop for amplitude stabilization in order to maintain spectral purity, and demonstrations. | 5/17/2013 | Free | View in iTunes |
| 19 | VideoLecture 19: Phase-locked Loops | This lecture covers applications and modeling of phase-locked loops, types of phase detectors, and demonstrations. | 5/17/2013 | Free | View in iTunes |
| 20 | VideoLecture 20: Model Train Speed Control | This lecture covers designs for a favorite toy, numerous deminstractions that illustrate basic problems, and practical (or impractical) considerations. | 5/17/2013 | Free | View in iTunes |
| 20 Items |
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