Explain the drain characteristics of jfet with external bias, Electrical Engineering

Assignment Help:

Q. Explain the drain characteristics of JFET with external bias?

It gives relation between Id and Vds for different values of Vgs.(which is called the running variable). The above drain characteristic graph can be used for explanation.

It is seen that as the negative gate bias voltage is increased:

(i) pinch off voltage Vp is reached at a lower value of Vds than when Vgs=0.

(ii) value of Vds for breakdown is decreased.

          It is seen that with Vgs=0,Id saturates at Idss and the characteristics shows Vpo=5v When an external bias of -1v is applied ,gate-channel junction still require -5v to achieve pinch-off .It means that Vds=4v is now required instead of previous 4v.


Related Discussions:- Explain the drain characteristics of jfet with external bias

Explain the architecture of ss7, Q. explain the architecture of SS7 and com...

Q. explain the architecture of SS7 and compare with seven-layer OSI architecture. Ans: A block schematic diagram of CCITT no. 7 signalling system is displayed in figure. Sig

By which ferroelectric materials are characterised, Ferroelectric materials...

Ferroelectric materials are characterised by (A) Very high degree of polarisation. (B) A sharp dependence of polarisation on temperature. (C) Non-linear dependence o

Control system, I need some help for doing the assignment

I need some help for doing the assignment

Matrix, create a matrix of 5x6. with identical columns and rows ranging fro...

create a matrix of 5x6. with identical columns and rows ranging from 200 to 1000 in equal increments

What do you understand by solid modeling, What do you understand by solid m...

What do you understand by solid modeling and wireframe modeling in CAD systems? Explain and compare the both modellings. Describe the following 1. Boundary representation 2.

Meters and measurements, The subject of electrical measurements is such a l...

The subject of electrical measurements is such a large one that entire books have been written on the topic. Only a few basic principles will be introduced here. Practical measurem

De multiplexing address data bus, De multiplexing Address Data Bus (AD 7 - ...

De multiplexing Address Data Bus (AD 7 - AD 0 ) As it is already discussed that  lower  order address bus (A 7 - A 0 )  is multiplexed  with data bus (D 7 - D 0 ). Hence  pins

Impact of diversity, Both GSM and DECT use GMSK, but with different Gaussia...

Both GSM and DECT use GMSK, but with different Gaussian filters (BGT = 0.3 in GSM, BGT = 0.5 in DECT). What are the advantages of having a larger bandwidth time product? Why is the

DC motor, why DC motors use field winding instead of armature winding

why DC motors use field winding instead of armature winding

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