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

What is peripheral component interconnect, What is a PCI bus? Periphera...

What is a PCI bus? Peripheral Component Interconnect: PCI bus was developed through Intel and introduced in 1993. This is geared specifically to fifth- and sixth-generation sys

Explain extrinsic semiconductor, Explain Extrinsic Semiconductor. Extr...

Explain Extrinsic Semiconductor. Extrinsic Semiconductor: An intrinsic semiconductor is able to conduct some current even at room temperature but as this is not helpful for t

The filter capacitor , It is needed to use a half-wave rectifier for a dc p...

It is needed to use a half-wave rectifier for a dc power supply that gives an average dc output voltage of 15 V and a maximum ±1V ripple is permitted. The rectifier feeds a load of

FLIP-FLOPS, HOW ARE FLIP-FLOPS USED IN BINARY COUNTERS

HOW ARE FLIP-FLOPS USED IN BINARY COUNTERS

Factors which affect the inductance of an inductor, Factors which affect th...

Factors which affect the inductance of an inductor include:  i)  The number of turns of wire (N) - more turns the higher the inductance ii)  The cross-sectional area of the

3-phase bridge inverter, 3-phase  Bridge Inverter In 3-phase bridge in...

3-phase  Bridge Inverter In 3-phase bridge inverter six thyristors an six diodes are used as shown in figure  a capacitor at input terminal is connected so that the input volta

Opto couplers, Is there an opto-coupler that has a blocking voltage, VRRM, ...

Is there an opto-coupler that has a blocking voltage, VRRM, of greater than 800 volts? Perhaps, 1200 or 1600 volts? The manufacturer?

Transformers, What is the difference between “Insulating,” “Isolating,” and...

What is the difference between “Insulating,” “Isolating,” and “Shielded Winding” transformers? Can Acme Transformers be reverse connected? . Can Transformers develop Three Phase po

Develop the equivalent circuits, (a) contains a freewheeling diode Dm, comm...

(a) contains a freewheeling diode Dm, commonly connected across an inductive load to provide a path for the current in the inductive load when the switch S is opened after time t (

ERT, What are the applications for solar PV system? Explain one of the appl...

What are the applications for solar PV system? Explain one of the application with neat schematic diagram.

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