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

Colpitts oscillator, how does a colpitts oscillator works an also explain t...

how does a colpitts oscillator works an also explain the principle

Digital Electronics, Design a MOD-6 synchronous counter using T Flip-Flops....

Design a MOD-6 synchronous counter using T Flip-Flops.

Vector calculus in electromagnetic theory, can you please briefly explain a...

can you please briefly explain about significance of the word direction in vectors with some valid points

Explain in brief the functions of clock generator chip, Explain in brief th...

Explain in brief the functions of the clock generator chip, 8284. 8284 Clock generator: The 8284 is an ancillary element to the microprocessors. Without any clock generato

Working of harmonic distortion analyzer, Q. Explain with the help of a bloc...

Q. Explain with the help of a block diagram the working of harmonic distortion analyzer. OR Write short note on Harmonic distortion analyzer. Sol. Several methods h

Composition of fet, Composition of FET The FET (field-effect transisto...

Composition of FET The FET (field-effect transistor) can be constructed from several semiconductors, silicon being by far the most common. Several FETs are made with conventio

Electromechanical energy conversion, derived expression for reluctant torqu...

derived expression for reluctant torque in rotating electrical machine

3-phase 3 wire meter, 3-Phase 3 Wire Meter A 3-phase 3 wire meter has ...

3-Phase 3 Wire Meter A 3-phase 3 wire meter has 2 elements of each category on the other hand of 3 elements as in the case of 3-phase 4 wire meter. The primary principle of op

Sbb instruction , SBB Instruction This  instruction is used to subtrac...

SBB Instruction This  instruction is used to subtract the contents of register  or memory  location  with carry  flag from accumulation. The results  of operations is stored

Define the time constant of the circuit, A coil of inductance 0.04 H and re...

A coil of inductance 0.04 H and resistance 10? is connected to a 120 V, d.c. supply. Verify (a)  The final value of current     (b)  The time constant of the circuit (c)

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