Feedback: More than Loud Noise and Joysticks

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Presentation transcript:

Feedback: More than Loud Noise and Joysticks James Wnorowski

What is Feedback? When you put a microphone too close to a speaker? Force Feedback Joysticks? Something else entirely?

Stability Which pendulum is stable, and why? Both placements are in equilibrium. What happens if I push each mass a little to the side?

Demo The first time, I just let the flashlight fall The second time, I moved my hand so that it was under the flashlight, preventing it from falling This is an example of Negative Feedback

Feedback, Revisited

Review To make systems stable, we use Negative Feedback. Joystick an example of Negative Feedback. Speaker / Microphone combination an example of Positive Feedback.