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Why Mosfet is called Mosfet?
asked
Mar 19, 2018
by
anonymous
Why Mosfet is called Mosfet?
mosfet
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asked
Mar 19, 2018
by
anonymous
What is the transconductance of a MOSFET?
What is the transconductance of a MOSFET?
transconductance
mosfet
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asked
Mar 19, 2018
by
anonymous
What is meant by pinch off voltage in MOSFET?
What is meant by pinch off voltage in MOSFET?
pinch
off
voltage
mosfet
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asked
Mar 19, 2018
by
anonymous
What is channel length modulation in MOSFET?
What is channel length modulation in MOSFET?
Last answer:
Shortening of lenght of the inverted channel region with increase in drain bias for large drain biases due to which current increases with drain bias and output resistance decreases is called channel length modulation in MOSFET.
channel
length
modulation
mosfet
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asked
Mar 19, 2018
by
anonymous
What is meant by body effect in MOSFET?
What is meant by body effect in MOSFET?
body
effect
mosfet
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asked
Mar 19, 2018
by
anonymous
What is the use of a Mosfet?
What is the use of a Mosfet?
use
mosfet
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5
asked
Mar 19, 2018
by
anonymous
What is the work of MOSFET?
What is the work of MOSFET?
work
mosfet
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asked
Mar 19, 2018
by
anonymous
In MOSFET, the polarity of the inversion layers is the same as that of?
In MOSFET, the polarity of the inversion layers is the same as that of?
Last answer:
In MOSFET, the polarity of the inversion layers is the same as that of majority carriers in the source.
mosfet
polarity
inversion
layers
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asked
Mar 19, 2018
by
anonymous
Is the input impedance of MOSFET more than BJT and FET?
Is the input impedance of MOSFET more than BJT and FET?
Last answer:
Yes, the input impedance of MOSFET more than BJT and FET.
input
impedance
mosfet
bjt
fet
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asked
Jun 18, 2018
by
anonymous
A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case
A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case thermal resistance of 1.00 C/W, and a junction-to ambient thermal resistance of 600 C/W. If the ambient temperature is 300o C, then the maximum allowable power dissipation in the device will be A) 1.52 W B) 1.72 W C) 1.92W D) 2.00 W
Last answer:
A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case thermal resistance of 1.00 C/W, and a junction-to ambient thermal resistance of ... 300o C, then the maximum allowable power dissipation in the device will be 2.00 W
power
mosfet
maximum
junction
temperature
specification
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asked
Jun 18, 2018
by
anonymous
When does the Body bias effect occur in an n-channel MOSFET?
When does the Body bias effect occur in an n-channel MOSFET? A) When the Source voltage is less the Bulk voltage B) When the Source voltage is equal to or greater the Bulk voltage C) When the Drain voltage is equal to the Bulk voltage D) When the Gate voltage is equal to the Bulk Voltage
Last answer:
When does the Body bias effect occur in an n-channel MOSFET? A) When the Source voltage is less the Bulk voltage B) When the Source voltage is equal to or greater the Bulk voltage C) ... voltage is equal to the Bulk voltage D) When the Gate voltage is equal to the Bulk Voltage
body
bias
effect
n-channel
mosfet
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asked
Mar 19, 2018
by
anonymous
A MOSFET has how many terminals?
A MOSFET has how many terminals?
Last answer:
A MOSFET having three terminals 1st one is Gate (insulated), 2nd one is Source and 3rd one is Drain.
mosfet
terminals
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3
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asked
Mar 19, 2018
by
anonymous
How can we check a Mosfet?
How can we check a Mosfet?
mosfet
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asked
Mar 19, 2018
by
anonymous
MOSFET uses the electric field of?
MOSFET uses the electric field of?
Last answer:
MOSFET uses the electric field of gate capacitance.
mosfet
uses
electric
field
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asked
Sep 22, 2017
by
anonymous
Why MOSFET is used for low power applications?
Last answer:
MOSFET have high current losses due to High on state resistance. Hence MOSFET is used for low power applications.
mosfet
applications
low
power
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asked
Sep 22, 2017
by
anonymous
Why paralleling of mosfet is easier?
Last answer:
Because of positive temperature coefficient of mosfet the paralleling of mosfet is easier.
mosfet
paralleling
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asked
Sep 15, 2017
by
anonymous
Explain the series and parallel operation of MOSFET. Which is suitable and why ?
Explain the series and parallel operation of MOSFET. Which is suitable and why?
Last answer:
Series operation of MOSFET: To increase voltage handling capability MOSFETs are connected in series. When the MOSFETs are connected in series each MOSFET should turn on and turn off ... on and turn off time and transconductance. Each MOSFET should share current equally.
mosfet
series
parallel
operation
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asked
Sep 15, 2017
by
anonymous
why IGBT is preferred as a power switch over both power BJT and MOSFET?
Last answer:
Because it has a higher switching frequency and heat tolerance.
igbt
bjt
mosfet
power
switch
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asked
Sep 13, 2017
by
anonymous
why igbt is used instead of bjt and mosfet?
Last answer:
ON state losses of IGBT is less as compared to MOSFET and BJT.
igbt
bjt
mosfet
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asked
Sep 10, 2017
by
anonymous
why mosfet is voltage controlled device?
Last answer:
already answered here is mosfet current controlled device?
mosfet
voltage
controlled
device
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asked
Sep 10, 2017
by
anonymous
why mosfet is used for high frequency?
Last answer:
MOSFET provides better efficiency at high frequency and its high speed switching losses are less hence MOSFET is used for high frequency.
high
frequency
mosfet
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asked
Dec 7, 2017
by
anonymous
parallel operation of mosfet can be done more easily as compared to thyristor. why?
parallel operation of MOSFET can be done more easily as compared to thyristor. why?
Last answer:
Parallel operation of MOSFET can be done more easily as compared to thyristor because the resistance of MOSFET is increases with increase in temperature. MOSFET have the positive temperature coefficient. In ... the parallel operation of MOSFET can be done more easily as compared to the thyristor.
mosfet
thyristor
parallel
operation
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asked
Apr 28, 2018
by
anonymous
The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at
The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of (A) 1.5V (B) 2.5V (C) 3.5V (D) 4.5V
Last answer:
The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of 2.5V
threshold
voltage
n-
channel
enhancement
mode
mosfet
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asked
Apr 28, 2018
by
anonymous
Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ?
Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ? (A) forward conduction (B) latching (C) forward blocking (D) reverse breakdown
Last answer:
Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ? (A) forward conduction (B) latching (C) forward blocking (D) reverse breakdown
thyristors
bjt
mosfet
igbt
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asked
Feb 3, 2018
by
anonymous
Operating frequency of power MOSFET is higher than that of power BJT. Justify the statement.
Operating frequency of power MOSFET is higher than that of power BJT. Justify the statement.
Last answer:
Power MOSFET have high turning on and turning off capability high switching speed of MOSFET is due to the high rate of change of drain voltage. The switching losses of power MOSFET ... lower frequency. Hence, operating frequency of power MOSFET is higher than that of power BJT.
mosfet
bjt
frequency
operating
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asked
Feb 2, 2018
by
anonymous
Justify the statement. Antiparallel diode is connected across MOSFET.
Justify the statement. Antiparallel diode is connected across MOSFET.
Last answer:
In MOSFET current is flow from drain to source but when the load is inductive the current may flow in opposite direction. To avoid the opposite flow of current and to protect MOSFET the antiparallel diode is connected across MOSFET.
antiparallel
diode
mosfet
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25
asked
Dec 7, 2017
by
anonymous
Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.
Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses.
Last answer:
MOSFET is metal oxide field effect transistor. MOSFET is a voltage controlled device. MOSFET is majority carrier device. MOSFET are of two one is n-channel MOSFET and p-channel MOSFET. Gate, ... . Hence, power MOSFET is operated at high enough gate-source voltage to minimize the conduction losses.
mosfet
power
gate
source
voltage
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752
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26
asked
Sep 29, 2017
by
anonymous
is IGBT costlier than BJT and MOSFET?
Last answer:
Yes IGBT is costlier than BJT and MOSFET.
igbt
bjt
mosfet
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27
asked
Sep 15, 2017
by
anonymous
what is depletion type MOSFET?
What is depletion type MOSFET?..........
Last answer:
Depletion MOSFET: Depletion MOSFET is a MOSFET in which the channel already exists. If we apply a voltage between drain and source then the drain current will flow even if the gate to source ... in figure. The drain current will be reduced as the gate to source voltage made more negative.
depletion
type
mosfet
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28
asked
Sep 15, 2017
by
anonymous
what is enhancement MOSFET?
What is enhancement MOSFET?...............
Last answer:
Enhancement MOSFET: There are two types of MOSFET one is enhancement MOSFET and second is depletion MOSFET. In enhancement MOSFET channel is created by applying threshold voltage between gate and source ... mode. The enhancement MOSFET will not conduct if the gate to source voltage is zero.
mosfet
enhancement
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29
asked
Sep 10, 2017
by
anonymous
is mosfet current controlled device?
Last answer:
No, MOSFET is not the curent controlled device. The current between drain and source which is drain current is controlled by applying a voltage between gate and source hence MOSFET is a voltage controlled device.
mosfet
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167
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asked
Aug 6, 2017
by
anonymous
what is MOSFET ?
what is MOSFET ?
Last answer:
MOSFET is a type of Field Effect Transistor (FET). It is a voltage controlled transistor. MOSFET have very high input impedance. It can be use with very low current circuits. It is very fast ... of Nano ampere. There are two types of MOSFET one is enhancement mode and second is depletion mode.
mosfet
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31
asked
May 2, 2020
by
anonymous
State advantages of MOSFET.
State advantages of MOSFET.
Last answer:
Advantages of MOSFET * MOSFETs provide greater efficiency while operating at lower voltages. * Absence of gate current results in high input impedance. * High switching speed. * They operate at lower ... due to lower resistance of channel. * They are easy to manufacture. * They are portable.
state
advantages
of
mosfet
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32
asked
Aug 12, 2019
by
aku
Plot Vgs vs Vds characteristics of a common source mosfet
common
source
mosfet
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33
asked
Aug 3, 2019
by
anonymous
What parameters are to be considered when choosing a MOSFET?
What parameters are to be considered when choosing a MOSFET?
parameters
mosfet
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asked
Jul 25, 2019
by
anonymous
Describe with neat sketch the construction and working principle of MOSFET.
Describe with neat sketch the construction and working principle of MOSFET.
Last answer:
Construction and working principle of MOSFET: A) Depletion type MOSFET: Construction: The N-channel depletion type MOSFET is formed on P-type silicon substrate with two heavily ... accumulation of electrons and hence more current. Thus the MOSFET is a gate voltage controlled device.
mosfet
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35
asked
Jul 25, 2019
by
anonymous
State the applications of MOSFET
State the applications of MOSFET
Last answer:
Applications of MOSFET: i) Switching-mode-power-supplies (SMPS) and linear power supplies. ii) Brushless DC motor drives iii) Solid state DC relay iv) Automobile applications v) Stepper motor controller vi) Lighting controls vii) Solenoid drivers viii) Robotics ix) Induction heating
mosfet
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51
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1
answer
36
asked
Sep 5, 2018
by
anonymous
Compare JFET with MOSFET.
Compare JFET with MOSFET.
Last answer:
Particulars JFET MOSFET 1) Type Voltage controlled device Voltage controlled device 2) Mode of operation Operates only in depletion mode Operates in depletion and enhancement ... 6) Gate connection Not isolated from substrate Isolated by SiO2 layer from substrate
compare
jfet
mosfet
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71
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37
asked
Sep 5, 2018
by
anonymous
Describe the operation of N channel enhancement type MOSFET with diagram.
Describe the operation of N channel enhancement type MOSFET with diagram.
Last answer:
As its name indicates, this MOSFET operates only in the enhancement mode and has no depletion mode. It operates with large positive gate voltage only. It does not conduct when the ... of charge carriers attracted to the positive gate. Thus drain current is controlled by the gate potential.
operation
n-channel
enhancement
type
mosfet
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38
asked
Mar 10, 2018
by
anonymous
Explain switching model of MOSFET.
Explain switching model of MOSFET.
switching
model
mosfet
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60
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39
asked
Feb 19, 2018
by
anonymous
Explain MOSFET gate drive circuit and totem pole configuration.
Explain MOSFET gate drive circuit and totem pole configuration.
Last answer:
MOSFET gate drive circuit: The turning on and turning off of MOSFET can be controlled from gate to source voltage signal. If the gate to source voltage of MOSFET exceeds threshold ... this configuration, the two switches (transistors) are used in totem pole arrangement with a comparator.
mosfet
gate
drive
circuit
totem
pole
configuration
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266
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40
asked
Feb 6, 2018
by
anonymous
Explain the formation of parasitic BJT and parasitic diode in Power MOSFET.
Explain the formation of parasitic BJT and parasitic diode in Power MOSFET. Can parasitic diode be used in same power electronics applications?
Last answer:
Parasitic Diode: The parasitic diode is in between drain and source. The MOSFET structure itself contains parasitic diode or body drain diode. This parasitic diode allows the reverse flow of current when the ... of MOSFET as a BJT collector. Parasitic BJT operates in the cut-off region.
parasitic
diode
bjt
power
mosfet
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2.4k
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41
asked
Nov 14, 2017
by
anonymous
Explain difference between enhancement MOSFET and depletion type MOSFET.
Explain difference between enhancement MOSFET and depletion type MOSFET.
Last answer:
In enhancement MOSFET channel is not initially exists but in depletion MOSFET channel is already exists. In case of depletion MOSFET if the voltage is applied between drain and source the drain current will flow ... a channel. depletion MOSFET & enhancement MOSFET
depletion
mosfet
enhancement
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338
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42
asked
Nov 10, 2017
by
anonymous
Compare BJT, MOSFET and IGBT .
Compare BJT, MOSFET and IGBT .
Last answer:
BJT MOSFET IGBT BJT is a current controlled device. MOSFET is a voltage controlled device. IGBT is a voltage controlled device. The input impedance of BJT is low. ... is minority carrier device. MOSFET is majority carrier device. IGBT is minority carrier device.
compare
bjt
mosfet
igbt
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351
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43
asked
Sep 23, 2017
by
anonymous
Does MOSFET have a second breakdown problem?
Last answer:
No MOSFET do not have a second breakdown problem.
mosfet
second
breakdown
problem
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65
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1
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44
asked
Sep 23, 2017
by
anonymous
MOSFET are current controlled or voltage controlled devices?
Last answer:
MOSFET are voltage controlled devices.
mosfet
controlled
device
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116
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3
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45
asked
Sep 22, 2017
by
anonymous
What are the two types of mosfet?
Last answer:
MOSFETs are of two types namely 1) enhancement type MOSFET or E-MOSFET 2) depletion type MOSFET or D-MOSFET
mosfet
types
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76
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2
answers
46
asked
Sep 22, 2017
by
anonymous
Can MOSFET operate at very high frequency?
Last answer:
Yes MOSFET can operate at very high frequency.
mosfet
frequency
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80
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1
answer
47
asked
Aug 13, 2017
by
Zeeshan
what are the uses of MOSFET ?
what are the uses of MOSFET ?
Last answer:
Choppers and inverters and where high switching frequency is required.
mosfet
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80
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48
asked
May 25, 2020
by
anonymous
Why there is decrease in supply voltage with increase in drain current in voltage controlled current source circuit using op amp and mosfet?
Why there is decrease in supply voltage with increase in drain current in voltage controlled current source circuit using op amp and mosfet?
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21
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0
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49
asked
May 25, 2020
by
anonymous
Why is there an infinite capacitor in a mosfet amplifier?
Why is there an infinite capacitor in a mosfet amplifier?
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