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MOSFET has high input impedance and offer input signal isolation from the circuit
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Why jfet called as fet?
FET is a field effect transistor, abbreviated to FET. There are two basic types of FET: a junction FET abbreviated to JFET and an insulated gate FET , abbreviated to IGFET. The most common type of IGFET is a metal-oxide silicon FET, Known as a MOSFET. Modern microprocessors may contain tens of millions of MOSFETs.
Can we replace a thyristor by a mosfet?
No because a mosfet does not work the same as a thyristor. In a thyristor the current flows even when the gate pulse is removed, until the current stops. That is not the case for a FET.
What happens if very high voltage is applied to the gate of the n and p channel MOSFET?
punchthru, resulting in destruction of the FET
What is a mosfet amplifier?
what is a mosfet amplifier
In modern electronic multimeter a fet or mosfet is preferred over bjt because?
Because of its much higher input impedance. When measuring voltage, that makes the voltmeter appear to the circuit as if it's not there, so the presence of the voltmeter doesn't change the operation of the circuit.
Why you use FET?
FET's improve the switching frequency from KHZ to MHZ.. FET can be used as temperature sensor.. and mosfet is used as a switch..
Which semiconductor power device is not a current triggered device?
Power FET
What are the classifications of FET?
mosfet, JFET ,these are again divded into many typesdepending upon their material they are made of
Why jfet called as fet?
FET is a field effect transistor, abbreviated to FET. There are two basic types of FET: a junction FET abbreviated to JFET and an insulated gate FET , abbreviated to IGFET. The most common type of IGFET is a metal-oxide silicon FET, Known as a MOSFET. Modern microprocessors may contain tens of millions of MOSFETs.
Can we replace a thyristor by a mosfet?
No because a mosfet does not work the same as a thyristor. In a thyristor the current flows even when the gate pulse is removed, until the current stops. That is not the case for a FET.
What happens if very high voltage is applied to the gate of the n and p channel MOSFET?
punchthru, resulting in destruction of the FET
Why fet operated in reverse bias?
you want to keep the channel electrically isolated from the gate (jfet) or substrate (mosfet) so that it operates as a fet, don't you? if it was forward biased it would just be a diode with no field effect.
What is depletion mosfet?
A depletion mode MOSFET is a FET that is on with no gate bias, and requires a negative bias (with respect to the source) to stop conducting. The channel is normally conductive and with a negative gate bias the channel becomes "depleted" of charge carriers, hence the name depletion mode MOSFET. This is contrary to enhancement type MOSFET's that are non conductive with zero volts gate bias and become conductive when there is a positive bias on their gate.
Why should a JFET be operated with only reverse bias on the gate?
If the gate-channel junction of a JFET was not reverse biased the JFET would just act as a forward biased diode across that junction and the gate would cease to have any control over the channel conductance. For the same reason in a MOSFET the substrate-source/channel/drain junction must remain reverse biased. The MOSFET could not act as a MOSFET.
What is a mosfet amplifier?
what is a mosfet amplifier
In modern electronic multimeter a fet or mosfet is preferred over bjt because?
Because of its much higher input impedance. When measuring voltage, that makes the voltmeter appear to the circuit as if it's not there, so the presence of the voltmeter doesn't change the operation of the circuit.
Other name of voltage to current converter?
a FET, or Feild Effect Transistor. In a FET, the value of the current depends upon the value of the voltage applied at the gate and drain so it is known as a voltage controlled device. For example: In a MOSFET the current from drain to source depends upon the width of the depletion layer which in turn depends upon the voltage applied on the gate.
