First quadrant or class a chopper, Electrical Engineering

Assignment Help:

First Quadrant or Class A chopper

A chopper  two mode operation of class  A chopper  can be explained as follow.

 

561_first.PNG

                                                             Figure class A  chopper  circuit  V0- I0 characteristic

Mode I 

When  the chopper switch  is on V0= Vs  and current  flows in the direction  in this mode  V0 and I0  will be  positive.

Mode II

When the chopper SW  is OFFF V0 = 0 (Since  diode  act like short Circuit). Now  the inductor present in the load releases its energy and  maintain the current in  the same direction through  the freewheeling diode FD.  Again the V0  and I0 will be  positive. This  operation is shown in by the hatched area in figur.

 

 


Related Discussions:- First quadrant or class a chopper

Common control switching system, Q. Common control switching system? C...

Q. Common control switching system? Common Control Switching System: A functional block diagram of a common control switching system is displayed in Figure. Control functions

EDC, why biasing of bjt transistor is essential?

why biasing of bjt transistor is essential?

Electric Optic Device, Transmission Through a LiNb0 3 Plate Examine the tr...

Transmission Through a LiNb0 3 Plate Examine the transmission of an unpolarized He-Ne laser beam (?o= 633 nm) normally incident on a LiNb0 3 plate (ne = 2.29, no = 2.20) of thickn

Wcdma, what is that mean and explain

what is that mean and explain

Describe soldering materials and their uses, Describe soldering materials a...

Describe soldering materials and their uses. The process of joining two or more metals is termed as soldering. An alloy of two or more metals of low melting point utilized for

Commutation in dc machines, Currents induced in armature conductors of a d....

Currents induced in armature conductors of a d.c. generator are alternating. To make their flow unidirectional in the external circuit, we need a commutator. Moreover, these curren

Illustrate the working of full wave rectifier, Illustrate the working of fu...

Illustrate the working of full wave rectifier using bridge rectifier. How is it different from centre tapped Rectifier ? Illustrate Avalanche and Zener breakdown. Draw & explain

What is the size of ports in 8255, What is the size of ports in 8255? P...

What is the size of ports in 8255? Port-A : 8-bits Port-CU : 4-bits Port-B : 8-bits Port-CL : 4-bits

Triggering capabilities of logic analyser, trigger capabilities of logic an...

trigger capabilities of logic analyser that differentiate it from other devices???

Duty cycle of the system, The report should contain all of the information ...

The report should contain all of the information detailed below together with your analysis of the circuit and any conclusions. The report should contain the code for your simulati

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