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

Calomel electode, Explain the construction and working of Calomel electrode...

Explain the construction and working of Calomel electrode

What do you mean by sign bit, Q. What do you mean by Sign Bit? The sign...

Q. What do you mean by Sign Bit? The sign bit is like simple as it gets 0 denotes a positive number and 1 denote a negative number and flipping the value of this bit flips the

Explain the architecture of 8085, Explain the Architecture of 8085. Ø  ...

Explain the Architecture of 8085. Ø  ALU Ø  Interrupt control Ø  Serial I/O control Ø  Timing and control unit Ø  Instruction Register & Decoding

Compute the induced emf, Compute the induced emf: If a coil of 150 tur...

Compute the induced emf: If a coil of 150 turns is linked with a flux of 0.01 wb while carrying a current of 10 Amp, compute the inductance of coil. Now, if current is reverse

Wien bridge, How i prepare a wien bridge for my college assignemen?

How i prepare a wien bridge for my college assignemen?

Explain memory mapped i/o scheme, Explain Memory Mapped I/O Scheme. Me...

Explain Memory Mapped I/O Scheme. Memory Mapped I/O Scheme: In such scheme there is only one address space. These address space is defined as all possible addresses which m

Explain about simplex communication, Q. Explain about Simplex communication...

Q. Explain about Simplex communication? Simplex communication: Microphone and the earphone are transducer elements of the telephone communication system. Microphone converts

Customer relationship management software, Customer Relationship Management...

Customer Relationship Management Software CRM software products are most varied and variable in cost and functionality. The significant CRM software application includes: a

Electromagnetic fields and waves, QUESTION: Electromagnetic Fields and Wave...

QUESTION: Electromagnetic Fields and Waves (a) Illustrate with help of diagrams the Cartesian, Cylindrical and Spherical coordinate systems. (b) Lay down the assumptions fo

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