Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. How can a JFET be used as a constant current source? Explain from the drain characteristics.
As the VDS voltage is increased from 0 to a few volts, the current will increase as determined by ohm's law and the plot of ID versus VDS will appear as shown below.
The relative straightness of the graph reveals that for the region of low voltage level referred to as VP. The depletion region will widen, causing a noticeable reduction in the channel width. The reduced path of conduction causes the resistance to increase and the curve in the graph to occur. The more horizontal the curve the more the resistance, suggesting that the resistance is approaching infinite ohms. If VDS is increased to a level where it appears that the two depletion regions will touch. A condition known as pinch off will result. The level of VDS that establishes this condition is referred to as pinch off voltage. The term pinch off is a misnomer which actually means that the value of ID has become 0 A. this is hardly the case as the ID still maintains a saturation level defined as IDSS. In reality a very narrow channel still exists, with a current of very high density. The fact that ID does not drop off to 0 at pinch-off and maintains a saturation level is verified by the fact : the absence of the drain current would remove the possibility of different potential levels through out the n channel material to establish the varying levels of reverse bias along the p-n junction. The result would be a loss of depletion region distribution that caused pinch off in the first place.
The fact about the constant current IDSS can be used to make a JFET a constant current source as its current value remain constant. The JFET is thus a very versatile device and can be used as a current source with much stabler characteristics than a zener diode current regulator.
LKI Load Register pair Immediate Instruction This instruction is used to copy or load 16 bit data specified in the instruction directly into the register pair. The i
define
Explain the two types of materials that are formed after doping. Depending on the impurity added, extrinsic semiconductors can be then subdivided in two types of class: N-ty
reading type of cro probe
Change Management in Power Distribution: Organisational change might be described as an organisation-wide effort to augment the effectiveness of an organisation through str
defination
Q. Describe about transmission-line voltage regulation? The transmission-line voltage regulation (TLVR) is the ratio of the per-phase voltage drop between the sending-end and r
Critical Rate of Rise of Current The maximum rate of increase of current during on state which the SCR can tolerate is called the critical rate of rise of current f
Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize th
Build an intersection traffic light using the LED's as in the diagram below Day Use the LED's on the trainer (port 11) Main Street and Side Street alternate. Mai
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd