Second quadrant or class b chopper, Electrical Engineering

Assignment Help:

Second Quadrant or Class B Chopper

Class B  chopper  is shown in figure in this  type of  chopper load  must contain  a dc source E ( may  be battery or a DC motor)  and inductances the  operation of classes B chopper as follows.

 Mode I

When SW  is on V0 = 0 but current will  be flowing  through  inductance L and  chopper SW  due to E as shown in figure in this mode inductance L stores energy.

Figure  shown the polarity of inductance  and direction of load  current.  It is clear  from this  figure that this  polarity's same as in directed but the  current is  flowing in reverse direction. Hence  is negative.

 Mode II

When SW  is off V0=  { E+ L  di0/dt}  exceeds the Vs  therefore  diode  D becomes forward  biased and current  flow   load to source  through diode D.  Again the load  voltage  is positive but current is in negative direction. In  this mode  inductance releases energy and the  polarity is shown in figure.

Hence  the Vo -I0  characteristics  is shown  in figure  that lie in second  quadrant.


Related Discussions:- Second quadrant or class b chopper

Water flow mangemen using embeded technogy, what is the method to do this p...

what is the method to do this project and what material used for?

Conducting material, #question.classification of conducting material.

#question.classification of conducting material.

high frequency electronic ballast - power supplies , Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE   High Frequency   Electronic Ballast

What is schokleys equation, Q. What is Schokleys Equation. Find out a relat...

Q. What is Schokleys Equation. Find out a relation between Vgs and Ids? Schokleys Equation is used for defining the relation between the Gate source voltage and the Drain curre

What speed would the machine be capable of converting energy, Q. An element...

Q. An elementary two-pole rotating machine with uniform air gap, as shown in Figure, has a stator-winding self-inductance Lss of 50 mH, a rotor-winding self-inductance Lrr of 50 mH

Draw a labeled block diagram of the encoder, Question: (a) The convers...

Question: (a) The conversion of a time varying analog audio signal into digital form is carried out using an electronic circuit known as a (signal) encoder. Draw a labeled bl

How to remove the LSB from the audio recording?, Using the audiorecorder() ...

Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize the

Signal in hart protocol, What is the significance of "4-20 mA" signal in ha...

What is the significance of "4-20 mA" signal in hart protocol? Ans) the HART protocol is an old Frequency Shift Keying way of distribution data, typically from highway sensors.

Ac circuits, AC Circuit: This topic explain the basic concepts of sing...

AC Circuit: This topic explain the basic concepts of single and three-phase ac system. Unit provides the thorough analysis and derivations as required by topics. Here we find

Illustrate about crossbar exchange, Q. Explain crossbar exchange, with all ...

Q. Explain crossbar exchange, with all call processing steps and diagrams. Ans: The basic concept of crossbar switching is to provide a matrix of n x m sets of contacts with

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd