What is meant by pinch off voltage in MOSFET?

Question

asked Mar 19, 2018 by anonymous

71 views

Please log in or register to answer this question.

← Prev Question Next Question →

Related questions

asked Sep 5, 2018 by anonymous

Define pinch off voltage and drain resistance of FET.

Last answer: 1 . Pinch-off Voltage: It is the value of the drain to source voltage VDS at which the drain current ID reaches its constant saturation value. Any further increase in VDS does not have any ... drain to source voltage to the change in drain current. It is also called AC/dynamic drain resistance.

0 like 0 dislike

53 views 1 answer

1

asked Mar 19, 2018 by anonymous

What is meant by body effect in MOSFET?

0 like 0 dislike

50 views 0 answers

2

asked Jun 18, 2018 by anonymous

The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply frequency of

The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply frequency of A) 10 kHz B) 10 Hz C) 5 kHz D) 5 Hz

0 like 0 dislike

154 views 0 answers

3

asked Feb 14, 2018 by anonymous

Explain the principle of ON OFF control and phase control of AC voltage controller with suitable circuit and waveforms.

Explain the principle of ON-OFF control and phase control of AC voltage controller with suitable circuit and waveforms.

Last answer: The integral cycle control (on-off control) and phase angle control are the two types of AC voltage controller. The principle of ON-OFF control: The on-off control is also called an integral cycle ... control. In phase control, the switch is on for some period of each cycle.

0 like 0 dislike

2.9k views 1 answer

4

asked Aug 8, 2017 by anonymous

what is gate turn off thyristor (GTO)?

Draw the structural diagram of GTO. Explain briefly the switching behavior of GTO with the help of appropriate voltage and current waveform.

Last answer: Gate Turn Off Thyristor (GTO) Conventional Thyristor can be turned on with gate terminal but can not turn off from gate terminal. But in case of Gate Turn Off Thyristor (GTO), we can turn it on and off ... subdivided as storage period (Ts), fall period (Tp) and tail period (Tt).

0 like 0 dislike

1.6k views 1 answer

5

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

0 like 0 dislike

110 views 1 answer

6

asked Dec 7, 2017 by anonymous

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.

2 like 0 dislike

752 views 1 answer

7

asked Sep 10, 2017 by anonymous

why mosfet is voltage controlled device?

Last answer: already answered here is mosfet current controlled device?

1 like 0 dislike

125 views 1 answer

8

asked Mar 19, 2018 by anonymous

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.

0 like 0 dislike

244 views 2 answers

9

asked Mar 19, 2018 by anonymous

What is the transconductance of a MOSFET?

0 like 0 dislike

49 views 0 answers

10

asked Mar 19, 2018 by anonymous

What is the use of a Mosfet?

0 like 0 dislike

44 views 0 answers

11

asked Mar 19, 2018 by anonymous

What is the work of MOSFET?

0 like 0 dislike

60 views 0 answers

12

asked Mar 19, 2018 by anonymous

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.

0 like 0 dislike

99 views 1 answer

13

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

0 like 0 dislike

70 views 1 answer

14

asked Mar 19, 2018 by anonymous

Why Mosfet is called Mosfet?

0 like 0 dislike

50 views 0 answers

15

asked Mar 19, 2018 by anonymous

Is the input impedance of MOSFET more than BJT and FET?

Last answer: Yes, the input impedance of MOSFET more than BJT and FET.

0 like 0 dislike

284 views 1 answer

16

asked Mar 10, 2018 by anonymous

What is meant by extra high voltage transmission?

Last answer: HT & LT two types transmission in industrial line

0 like 0 dislike

91 views 1 answer

17

asked Mar 10, 2018 by anonymous

What is meant by flash over voltage?

0 like 0 dislike

53 views 0 answers

18

asked Mar 10, 2018 by anonymous

What is meant by a voltage surge?

0 like 0 dislike

50 views 0 answers

19

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

0 like 0 dislike

114 views 1 answer

20

asked Mar 19, 2018 by anonymous

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.

0 like 0 dislike

159 views 3 answers

21

asked Mar 19, 2018 by anonymous

How can we check a Mosfet?

0 like 0 dislike

50 views 0 answers

22

asked Mar 19, 2018 by anonymous

MOSFET uses the electric field of?

Last answer: MOSFET uses the electric field of gate capacitance.

0 like 0 dislike

63 views 1 answer

23

asked Mar 20, 2018 by anonymous

The fuse blows off by?

Last answer: The fuse blows off by melting.

0 like 0 dislike

52 views 1 answer

24

asked Sep 10, 2017 by anonymous

thyristor can be turned off by?

Last answer: Thyristor can be turned off by making anode potential equal to cathode potential or by making anode potential less than cathode potential.

1 like 0 dislike

97 views 1 answer

25

asked Jun 18, 2018 by anonymous

How is the GTO turned off?

How is the GTO turned off? A) By using a commutation circuit B) By applying reverse gate pulse C) By using a latch-up circuit D) By reverse anode current pulse

Last answer: How is the GTO turned off? A) By using a commutation circuit B) By applying reverse gate pulse C) By using a latch-up circuit D) By reverse anode current pulse

0 like 0 dislike

86 views 1 answer

26

asked Mar 6, 2018 by anonymous

SCR turned off when the anode current falls below?

Last answer: SCR turned off when the anode current falls below holding current.

0 like 0 dislike

512 views 1 answer

27

asked Sep 21, 2017 by anonymous

how can we turn on and turn off GTO?

Last answer: GTO can be turned on by providing positive pulse to the gate terminal and it can be turn off by providing negative pulse to gate terminal.

0 like 0 dislike

72 views 1 answer

28

asked Sep 21, 2017 by anonymous

can we turn off thyristor using Gate?

Last answer: No we cannot turn off normal thyristor using Gate.

0 like 0 dislike

69 views 1 answer

29

asked Sep 23, 2017 by anonymous

MOSFET are current controlled or voltage controlled devices?

Last answer: MOSFET are voltage controlled devices.

3 like 0 dislike

116 views 3 answers

30

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.

1 like 0 dislike

134 views 1 answer

31

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.

1 like 0 dislike

139 views 1 answer

32

asked Aug 6, 2017 by anonymous

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.

0 like 0 dislike

78 views 1 answer

33

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

0 like 0 dislike

3.0k views 1 answer

34

asked Aug 3, 2019 by anonymous

What parameters are to be considered when choosing a MOSFET?

0 like 0 dislike

44 views 0 answers

35

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

1 like 0 dislike

76 views 2 answers

36

asked Aug 13, 2017 by Zeeshan

what are the uses of MOSFET ?

Last answer: Choppers and inverters and where high switching frequency is required.

0 like 0 dislike

80 views 1 answer

37

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.

1 like 0 dislike

2.4k views 1 answer

38

asked May 14, 2018 by anonymous

Pinch off voltage of a J FET is the drain to source voltage above which drain current.

Pinch off voltage of a J FET is the drain to source voltage above which drain current. • Increases • Decreases • Remains constant • Becomes zero

Last answer: Pinch off voltage of a J FET is the drain to source voltage above which drain current Remains constant

0 like 0 dislike

93 views 1 answer

39

asked Feb 3, 2018 by anonymous

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.

2 like 0 dislike

692 views 1 answer

40

asked Feb 2, 2018 by anonymous

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.

1 like 0 dislike

127 views 1 answer

41

asked Sep 29, 2017 by anonymous

is IGBT costlier than BJT and MOSFET?

Last answer: Yes IGBT is costlier than BJT and MOSFET.

0 like 0 dislike

2.6k views 1 answer

42

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.

0 like 0 dislike

78 views 1 answer

43

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.

0 like 0 dislike

53 views 1 answer

44

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.

1 like 0 dislike

434 views 1 answer

45

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.

1 like 0 dislike

110 views 1 answer

46

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.

1 like 0 dislike

108 views 1 answer

47

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.

1 like 0 dislike

167 views 1 answer

48

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.

1 like 0 dislike

97 views 1 answer

49

asked Jun 15, 2020 by anonymous

Define with respect to FET:- (i) Static drain resistance (ii) Dynamic resistance (iii) Trans conductance (iv) Pinch-off voltage

Last answer: (i) Static drain resistance- It is the ratio of drain source voltage (ΔVDS) to the drain current (ID) at constant gate-source voltage. It can be expressed as, Rd = (VDS)/(ID) at ... of charge carrier and the value of drain current reaches its constant saturation value is called pinch off voltage.

0 like 0 dislike

25 views 1 answer

50

What is meant by pinch off voltage in MOSFET?

Please log in or register to add a comment.

Please log in or register to answer this question.

0 Answers

Related questions