All Questions
Tagged with nmos circuit-analysis
22
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Transistor failure in multi channel high frequency AC signals
[Intro]
To begin with, I am an undergraduate electrical engineering student working on my senior project. I wanted to make a wireless charging pad like that of Tesla's wireless charging platform and ...
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A simple NMOS circuit simulation. Is there a way I can use KCL to find Id instead of doing Id equation?
I know the traditional way to solve this, you find Vgs then you try to find Id.
But for this circuit, we already can figure out the current flowing through the 2K and 3K by doing KVL(assuming I1). Is ...
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Multism simulation for NMOS type circuit, why I am not getting the expected graph?
I am trying to simulate my circuit for one of the question problems. The question looks like this
I have written a MATLAB script to see the expected graph
...
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55
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Finding the mode of a MOSFET
I'm trying to determine the state of MOSFET \$T_1\$ in the following circuit:
We are given that the threshold voltage \$V_\mathrm{T}\$ is \$1.5\ \mathrm{V}\$ and that every voltage source is \$5\ \...
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Parameter \$k\$ for MOSFET
Is the parameter \$k\$ used for the whole circuit or for every MOSFET in the circuit?
For example the circuit has 2 MOSFETS and \$k = 1mA/V^2\$. If I want to find the \$Id_1\$ and \$Id_2\$, is k = 0.5 ...
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3
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Understanding the RDS(on) of an N-MOSFET
I need to calculate the time for C1 to discharge below 60 V using the following constant current sink if it is initially charged to 565 V (MOSFET's VGS(th): 4 V).
At first, I looked at the MOSFET as ...
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How can I find \$\small V_{GS}\$ in this question?
My attempt:
DC ANALYSIS
Using voltage divider: $$V_{G0}=\frac{200\ \mathrm{k\Omega}}{300\ \mathrm{k\Omega}} \cdot 3\ \mathrm{V} = 2\ \mathrm{V}$$
By KCL $$I_{D0}=I_{D1}=I_{B}=I_{D}=1\ \mathrm{mA}$$
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Will the saturation current through one of these NMOS circuits always be greater than the other?
Is there a definitive way to know for all cases if an NMOS would have a greater saturation current if a resistor R is connected to 1) the drain side or 2) the source side?
The assumption is that the ...
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NMOS Cascode Logic
I have following problem and I ask you ,if possible, any help to resolve it.
Size the following circuit so that it achieves a 100 ps delay (50-50) using 0.25 μm devices, while driving a 100 fF load ...
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How to determine which terminal of a MOSFET is source, drain or gate [duplicate]
I am a student and for my next exam, as part of the tasks, I need to identify which terminals (pins) of P and N type mosfet are gate, source and drain. I have an example photo here, but if possible, I ...
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How to analyze this MOSFET H-bridge circuit?
In my university electronics course project, I am asked to analyze an H-bridge circuit. It is a simple H-bridge in which the motor is represented with a 37 ohm resistor and thus has no diodes.
The ...
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88
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Design a circuit to determine NMOS parameters
I am studying electronics independently, so this question is perhaps obvious for an engineering student.
I know that, for the ALD1106 MOSFET, we can assume a typical \$V_t = 0.7 V\$. How could I ...
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Understanding the working of a NAND GATE using NMOS Transistors
I'm having incredible difficulties understanding how the "Switching Behaviour" (not sure if that's the correct English translation- in German it is "Schaltverhalten") for NMOS and PMOS transistors ...
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Can ground and voltage terminals be connected by a wire?
Helo, I am working on an assignment for a circuit analysis class. I have always been a bit fuzzy about the following: Can I assume that the two top terminals are the same node, the two ground ...
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Trying to have NMOSs in parallel while passing current through only one at a time
If I wanted to have a bias current I1 going through M1 or M2 and I want M1 to alternate between on off (M1 on/M2 off, M1 off/M2 on) would this work? I simulated this with spice and for the first ...
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