Publicité

Feedback.ppt

25 Mar 2023
Publicité

Contenu connexe

Publicité

Feedback.ppt

  1. POSITIVE AND NEGATIVE FEEDBACK
  2. FEEDBACK MECHANISMS
  3. WHAT IS FEEDBACK? Feedback is the process in which part of the output of a system is returned to its input in order to regulate its further output.
  4. NEGATIVE FEEDBACK  Have you ever been scolded for not cleaning your room?  Cleaning your room is how you respond to being scolded.  A negative feedback system involves the detection of an undesirable condition and the response to make that condition ideal. Negative Feedback + _
  5. NEGATIVE FEEDBACK Basic structure: INPUT DETECTION RESPONSE OUTPUT SHUT OFF
  6. NEGATIVE FEEDBACK  Negative feedback occurs when the output of a system acts to oppose changes to the input of the system  A thermostat is an example of a negative feedback system
  7. A thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. Room temp is below the setpoint Room temp is above the setpoint Room temp increases Room temp decreases Set point is reached Set point is reached THERMOSTAT
  8. POSITIVE FEEDBACK  A positive feedback loop occurs when the output of a system acts to enhance the changes to the input of the system.  Acts to increase the magnitude of response or disturbance  Often referred to as a viscous cycle or runaway  Amplification
  9. POSITIVE FEEDBACK
  10. OTHER KINDS OF FEEDBACK Feed-forward  Not technically feedback, but similar.  The system responds in anticipation of a change
Publicité