mosfet

When RLC is in a resonance state that means the total impedance seen by Vs is just Rs. I see no use in this information. This problem kinda confuses me because there's no current flowing into the gate of this transistor so there would be no voltage drop in Rs so the amplitude at the gate would...

Here is the circuit: Here is the solution (taken from the book RF microelectronics by Behzad Razavi): My attempt: First i tried to find the gain expression for this circuit, i noticed that M2 is in diode configuration so in the small signal model M2 is equivalent to a resistor (=...

I am trying to use a monostable 555 timer circuit to control a peristaltic pump. But, the timer duration is not consistent. I replaced the fet and motor with LEDs and the timer behaves as expected (on for ~10s with the pot at 1 Mohm). What else do I need to have the timer drive the fet properly...

Dear all, can anyone share TL072 op-amp LT Spice Model with me (probably better if placed in zip file ) ? I am trying to simulate a TL072 to produce 1MegaHertz sine wave :) Thank you for your help :)

Below is Triangular Modulation Output of a Triangle input wave HI all, I have been trying to understand modulation and demodulation circuitry as part of my hobby :) The modulation circuit above works fine but when I connect the output of the modulator to the demodulator (as shown by blue...

I am wondering if it would be possible to swap out the MOSFETs on the picoUPS-100 by Mini-Box for higher-powered ICs. I know it would void the warranty, but it would be great to get a little more juice out of the device...

Referring to website link at here , this circuit tries to replicate the waveform of input voltage and make it to a high frequency, I try to simulate the circuit in LT Spice but the output is weird. May I know the solution to this? Below is my attached LT Spice for your convenience. Thank you...

Both of this graph show mosfet and but in switching mode As i look at the graph below I notice for mosfet the drain source amplitude is higher than the gate voltage amplitude . However , bjt , collector voltage amplitude is only reach at the same amplitude of base voltage amplitude. From this...

I'm looking to use an optocoupler+MOSFET to switch "undefined" DC power sources; the opto I'm looking at is FOD817D and the MOSFET is FDPF55N06. The power sources may range from 5V (USB power) to 24V, but I could see this being used to switch as high as 36V at some point in the future, and...

Dear all, I am looking for a circuit that can on an led by pressing the same button for 3 times? Thank you for reading and have a nice day:)

Hi all, I'm trying to drive a RFP30N06LE N-Channel MOSFET with TC4420 MOSFET Driver. The MOSFET is used to switch a [1W LED][1]. The input to the MOSFET driver is provided by the 5V from an Arduino Nano. But my circuit is not working: it seems that the VDD somehow leaks to the input of the...

Hello Hello I am using a MOSFET driver circuit with SI2303 as p-channel mosfet and SI2302 as n-channel mosfet. I have given control signal (of 5V) on the gate of n-channel mosfet to turn-on and off the p-channel mosfet. However, the p-channel mosfet is not getting off and I am constantly...

I'm working on a remote start system for an older gm diesel vehicle and so far everything has worked great, but I've hit a stump that I just cant figure out. The engineers who designed the ignition switch of my truck though it would be a good idea to run starter solenoid power though the...

Hello, I have a question regarding operational amplifiers. Whenever I search for some datasheets of high gain and high-speed Op Amps ( BW higher than 50MHz), I mostly find that they are made of bipolar transistors rather than mosfet. Why is it so? I've done some research and I've found that...

Hello, I have a dumb question about the working principle of a normal mosfet. When it is used as a switch, when we apply a gate voltage higher than the threshold it will output the voltage present at the source. It happens because it is working on its linear region. When we use a mosfet in a...

I using the MOSFET IRFB3004PBF switching. 56.2V is a source voltage coming from the charger and 48 is the nominal voltage of the batter. switch S1 is for switching Vgs. Vgs=5 v. Rgs=10k ohms (connected to the gate terminal and battery ground). battery is 13s3p Nominal=48v Peak=54.6v Will MOSFET...

Hello everyone. I am working on a project that involves the use of MOSFETs to turn a matrix of electromagnets on/off. The project is quite complex and involves several different circuits, but for facilitating this specific discussion, I have simplified the circuit to focus on this specific...

The other day I got the following exercise on one of my exams: For those who don't speak German, for transistor 1 lambda is 0, but not for the others. The backgate-effekt should be neglected alltogether. I drew the following small signal equivalent circuit (ignore the black texts for now)...

I want to buy a MOSFET in the rating of 600V/20A. I also want to buy MOSFET driver for that. I have to use it with Arduino Uno for controlling purpose. But I can't select which one to buy. Can anyone suggest me a good MOSFET + MOSFET Driver?

Hi all, I refer to this website at here . This circuit should give a complementary square waveform (R1 square wave & R2 inverted square wave). However, I did get a good square wave across R2 but R1 did not get any square wave. Does anyone know how to fix this? I have attached my LT spice below...