UrbanPro

Take GATE Coaching from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

What are the properties of negative feedback in closed loop system?

Asked by Last Modified  

Follow 0
Answer

Please enter your answer

Teacher And Engineer

They are commonly used in process, micro-computer and amplifier systems. In general feedback is the process by which a fraction of the output signal, either a voltage or a current, is used as an input. If this feed back fraction is opposite in value or phase to the input signal, then the feedback is...
read more
They are commonly used in process, micro-computer and amplifier systems. In general feedback is the process by which a fraction of the output signal, either a voltage or a current, is used as an input. If this feed back fraction is opposite in value or phase to the input signal, then the feedback is said to be Negative Feedback, or sometimes degenerative feedback. Negative feedback opposes or subtracts from the input signals giving it many advantages in the design and stabilisation of control systems. For example, if the systems output changes for any reason, then negative feedback affects the input in such a way as to counteract the change. Feedback reduces the overall gain of a system with the degree of reduction being related to the systems open-loop gain. Negative feedback also has effects of reducing distortion, noise, sensitivity to external changes as well as improving system bandwidth and input and output impedances. Feedback in an electronic system, whether negative feedback or positive feedback is unilateral in direction. Meaning that its signals flow one way only from the output to the input of the system. This then makes the loop gain, G of the system independent of the load and source impedances. As feedback implies a closed-loop system it must therefore have a summing point. In a negative feedback system this summing point or junction at its input subtracts the feedback signal from the input signal to form an error signal, which drives the system. If the system has a positive gain, the feedback signal must be subtracted from the input signal in order for the feedback to be negative as shown. read less
Comments

Related Questions

Should I join rank improvement batch of made easy or panacea institute if my gate rank is 4436 from self study.
Both are good. However, please avoid institutes like Gate Forum. They will offer low tuition fee and huge discounts. However, the GATE course material is of poor quality and faculties is mostly freshers.
Indrajeet
Which year I will do preparation for Gate coaching?
The best time to start GATE coaching is 3rd year.
Amit
0 0
7
My GATE rank is 4000. Should I join rank improvement batch of made easy or full course of panacea coaching. Please suggest.
Both Made Easy and Panacea are reputed institutes. You can choose the course depending on your availability for classes. However, being an ex-employee of the overseas education wing of GATE forum, I would...
Indrajeet
What are advantages of taking GATE coaching?
Through GATE there are many jobs
Meenakshisundarams
1 0
5
Can a ECE Student attempt GATE CSE Paper I'm from ece and wanted to attempt gate but im interested to choose my career in software background so i wanted to attempt CSE paper. Is it possible and is it ok to write so?
Why do you want to attempt GATE CSE Paper. If you want to enter Software industry, learn coding, prepare for interviews and directly join a company, instead of spending 2 years doing Masters, and then...
Hemanth

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Losses in a Transformer
The transformer is a Static device, i.e., It has no moving parts so by common sense it must have the highest efficiency among all the other electrical machines and also higher than that of rotating machines.The...

Types of Survey
Surveying Surveying is defined as a measurement of any two relative positions on the Earth or below the Earth or above the Earth. Types of Surveying On the basis of whether the the curvature of the...

How to Secure All India Rank 1 in Competitive Exams
Master Key for Engineering Satya Prakash Yadav is the Engineering Math’s and Aptitude faculty for ESE GATE and PSUs. He has done his B.Tech in Computer Science & Engineering and has a strong...

All about entropy
Entropy, the measure of a system’s thermal energy per unit temperaturethat is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a...

Drag And Its Classifications
Introduction Drag is the enemy of flight and its cost. One group of those forces is aerodynamic forces that split into two forces: Lift force or lift, and Drag force or drag. A pre-requisite to aircraft...

Looking for GATE Coaching ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Take GATE Coaching with the Best Tutors

The best Tutors for GATE Coaching Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more