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

Pdc, disadvantages of shunt&series clippers

disadvantages of shunt&series clippers

Determine the current and voltage for n-channel jfet, Q. An n-channel JFET ...

Q. An n-channel JFET with A = 300 V, P = 2 V, and I DSS = 10 mA is to be operated in the active mode. Determine i D when v DS = 10 V and v GS =-0.5V.

#choke coil, #what is the procedure of the choke coil experiment

#what is the procedure of the choke coil experiment

Factors affecting to high technical losses, Factors Affecting to High Techn...

Factors Affecting to High Technical Losses Large Scale Rural Electrification Large scale rural electrification programmed undertaken in the country resulted in long LT li

System diagram of complex programmable logic device, The system diagram for...

The system diagram for the proposed unit is shown below. The system operates on the principle of Time to Rate Conversion. Signals from the heart beat sensor are amplified

What do you mean by interference, Q. What do you mean by interference? ...

Q. What do you mean by interference? An information-bearing signal often becomes contaminated by externally generated interference and noise and/or by internally generated nois

Find the expression for the no-load speeds, Q For a three-phase, fully cont...

Q For a three-phase, fully controlled, recti?er-fed, separately excited dc motor, corresponding to ideal no-load operation, find the expression for the no-load speeds. Comment on w

What is cd-rom, Compact Disc - Read Only Memory. A CD-ROM is any compact di...

Compact Disc - Read Only Memory. A CD-ROM is any compact disc which having computer data. These discs can store enormous amounts of data (up to 640 megabytes). If there is a large

Dc charging and discharging circuit, The circuit shown below is a DC chargi...

The circuit shown below is a DC charging and discharging circuit. a.  At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for and .

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