What do you mean by the term feedback

What do you mean by the term feedback? And describe various types of feedback.

E

Expert

Verified

Feedback is a method whereby some proportion of the output signal of a system is passed (that is, fed back) to the input. This is frequently employed to control the dynamic behavior of the system.

Types of feedback:

a) Negative feedback: This tends to decrease output (however in amplifiers, stabilizes and linearizes the operation). Negative feedback feeds part of a system's output, inverted, to the system's input; usually with the outcome that fluctuations are attenuated.

b) Positive feedback: This tends to raise the output. Positive feedback, sometimes termed to as the cumulative causation, is a feedback loop system in which the system responses to perturbation in the similar direction as the perturbation. In contrary, a system which responds to the perturbation in the opposite direction is termed as a negative feedback system.

c) Bipolar feedback: This can either raise or decrease the output.

   Related Questions in Electrical Engineering

  • Q : What is IIL Explain what do you mean by

    Explain what do you mean by IIL? Describe about it in detail.

  • Q : Characteristics of windows Explain the

    Explain the characteristics of windows?

  • Q : Find out the value of phase for values

    For the electrode amplifier interface model outlined within given figure, illustrate that the maximum phase shift introduced within a signal at the amplifier interface happens at a frequency equivalent to the geometric mean of the pole and zero frequencies as √(

  • Q : RAM and kinds of RAM Describe the term

    Describe the term RAM. State various kinds of RAM?

  • Q : Level-Sensitive Scan Design and

    Describe the Level-Sensitive Scan Design and System-level busses.

  • Q : Find range of cancellation voltage A

    A pressure transducer having a Wheatstone bridge construction has the properties listed in the table below. The transducer is exited using a constant current source having an adjustable range and temperature coefficient. The zero pressure offset of the transducer must

  • Q : Benefits of ARCHIVELOG mode and NO

    What are the benefits of operating a database in ARCHIVELOG mode over operating this in NO ARCHIVELOG mode?

    Answer: Whole database recovery from disk failure is prob

  • Q : Attributes of digital logic families

    Describe the attributes of the digital logic families?

  • Q : Scan concepts used for testing Specify

    Specify some of the advanced scan concepts that are used for the testing.

  • Q : Prove phase shift is similar at pole

    The steady state transfer function of the certain electrode amplifier interface model demonstrated below is specified as:

    1564_ste</span></p>
                                        </div>
                                        <!-- /comment-box -->
                                    </li>
   
   </td>
	</tr>
</table>



                                    
                                    
                                </ul>
                                <!-- /user-comments-list -->
                            </div>
                        </div>
                    <div  class=

    Discover Q & A

    Leading Solution Library
    More Than 13,68,890 Solved problems, classrooms assignments, textbooks solutions, papers, essays
    No hassle, Instant Download
    Start Discovering

    18,76,764

    Questions
    Asked

    21,311

    Experts

    9,67,568

    Questions
    Answered

    Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

    Submit Assignment

    2015 ©TutorsGlobe All rights reserved. TutorsGlobe Rated 4.8/5 based on 34139 reviews.