Mosfet - Samenvattingen, Notities en Examens
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EECS 170c Final Examination Questions with 100% Correct Answers - University of California, Irvine
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University of California, Irvine EECS 170c Final Exam Questions with 100% Correct Answers 
 
 
EECS 170C	Final Examination 
 
Please note: 
 
1.	Examination is open book and notes. 
2.	Two problems. Problems carry different weights. 
3.	Problem 1 answers must be entered into CANVAS to get credit. 
4.	Maximum time is 2 hours. 
5.	All the answers must be added in the tables provided. 
6.	Please write your name on each page you submit. 
 
 
 
Problem 1 (25 points.) Following is given for the circ...
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EE 310 Electronic Circuit Design 1 Experiment 5 Active Biasing of the MOSFET Amplifie
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EE 310 Electronic Circuit Design 1 
Experiment 5 
Active Biasing of the MOSFET Amplifier 
 
Introduction: 
The purpose of this lab is extremely simple, build a current source and understand why 
Integrated Circuit (IC) designers use them. The type of current source that will be constructed in 
this experiment is called a Current Mirror. A Current Mirror is a circuit designed to copy a 
current through one active device by controlling the current in another active device of a circuit, 
keeping th...
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MOSFET QUESTIONS & ANSWERS SOLVED 100% CORRECT!
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A D-MOSFET can operate in the - Depletion-mode or enhancementmode 
When an n-channel D-MOSFET has lo> loss, it - is operating in the enhancement- mode 
The voltage gain of a D-MOSFET amplifier is dependent on - All of the above 
Which of the following devices revolutionized the computer industry? - E-MOSFET 
The voltage that turns on an EMOS device is the - Threshold voltage 
Which of these may appear on the data sheet of an enhancement- mode MOSFET? - All the above 
The VGSon of an n-channel...
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MOSFET - NIDA QUESTIONS & ANSWERS SOLVED 100% CORRECT!
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An Enhancement-mode MOSFET acts like a normally _______ switch. - Answer-open 
What separates the metal gate electrode from the semiconductor substrate material in a MOSFET? - 
Answer-an insulating layer 
In which MOSFET device is the channel already constructed to be the same doping as the source and 
drain? - Answer-PMOS Depletion-Mode 
A Depletion-mode MOSFET acts like a normally _______ switch. - Answer-closed 
What is the symbol for an Enhancement-mode MOSFET? - Answer-A (sorry no picture) ...
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MOSFETS QUESTIONS AND ANSWERS
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What are the conditions for the cut-off region? - Vgs ≤ Vt 
What's the equation for the cut-off region? - Ids = 0 
What's the equation for Id in the FET linear (resistive) region? - Id = β(Vgs-Vt)Vds 
What are the conditions for linear (resistive) region? - Vg ≤ Vt and Vds << (Vgs-Vt) 
What's the equation for Id in the FET triode region? - Id = β[(Vgs-Vt)Vds-Vds²/2] 
What are the conditions for triode region? - Vgs > Vt and Vds≤(Vgs-Vt) 
What's the equation for Id in the FE...
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MOSFET - NIDA Test | Questions solved 100% Correct/Verified Solutions
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An Enhancement-mode MOSFET acts like a normally _______ switch. - ANSWER 
open 
What separates the metal gate electrode from the semiconductor substrate 
material in a MOSFET? - ANSWER an insulating layer 
In which MOSFET device is the channel already constructed to be the same 
doping as the source and drain? - ANSWER PMOS Depletion-Mode
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MOSFET exam Questions with well explained answers
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Calculate threshold voltage (4 steps) - 1) calculate C'ox 2) Inversion voltage 3) Depletion voltage 4) 
threshold 
Accumulation condition - Small -ve voltage induce opposite charge in silicon, +ve accumulation of 
silicon due to holes, applied voltage - sum of v drop and band bending in silicon, difference in fermi 
levels qV 
Depletion condition - Small +ve voltage induces opposite charge, v drop oxide depends on 
capacitance 
Inversion condition - Large +ve voltage, increase depletion width, ...
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MOSFETS test 2| Questions solved 100% Correct/Verified Solutions
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A D-MOSFET can operate in the - ANSWER Depletion-mode or enhancement- 
mode 
When an n-channel D-MOSFET has lo> loss, it - ANSWER is operating in the 
enhancement- mode
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MOSFETS test | Questions solved 100% Correct/Verified Solutions
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What are the conditions for the cut-off region? - ANSWER Vgs ≤ Vt 
What's the equation for the cut-off region? - ANSWER Ids = 0 
What's the equation for Id in the FET linear (resistive) region? - ANSWER Id = β(Vgs-Vt)Vds 
What are the conditions for linear (resistive) region? - ANSWER Vg ≤ Vt and Vds << (Vgs-Vt)
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EC8351- Electronic Circuits- I
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What is a Q-point? [N/D– 16] 
The operating point also known as quiescent point ( Q-point) identifies the transistor collector 
current and collector-emitter voltage. When there is no input signal at the base, it defines the DC 
conditions of the circuit. 
2. What is the impact of temperature on drain current of MOSFET? [N/D– 16] 
The impact of temperature on drain current of MOSFET is, the drain current varies with 
temperature; the change in ID in temperature range for N-channel is ove...
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