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

Clipper, merits amd demerits of series and shunt clipper

merits amd demerits of series and shunt clipper

Circuit theory, matlab program for verifying maximum power transfer

matlab program for verifying maximum power transfer

Standby mode, Standby mode:In this mode, one processor is active and other ...

Standby mode:In this mode, one processor is active and other is on standby, both software and hardware wise. Standby processor brought online when active processor fails. A vital r

Define successive approximation digital to analog converter, Define Success...

Define Successive Approximation Digital to Analog Converter? Successive approximation ADCs transform analog signals to digital data by comparing the incoming analog signal alo

Find the resistance of 1 km of copper cable, Find the resistance of 1 km o...

Find the resistance of 1 km of copper cable having a diameter of 10 mm if the resistivity of copper is 0.017 x 10 -6 Ωm.

Transformer of distribution, Transformer of distribution: Let be the t...

Transformer of distribution: Let be the transformer of distribution of the Face(Figure) 3 connected to the primary between phase a and c of a three-phase network of 23 kV. Bot

Level4, What are the three modes of operation of rotating machines

What are the three modes of operation of rotating machines

Techniques and resources in problem base learning, Techniques and resources...

Techniques and resources Different techniques and resources were used in different areas of the problem during the course of the project. The most important of them was th

Aggregate technical and commercial loss, Aggregate Technical and Commercial...

Aggregate Technical and Commercial Loss It is unfortunate in that addition to T&D losses, there is also a loss in revenue because of non-realisation of billed demand which lea

Plagiarised Content, Your site is full of plagiarised content even though y...

Your site is full of plagiarised content even though you claim to be and I quote "Plagiarism Free". You should not be charging for this content, the site and service is a fraud.

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