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- mosfet - How can I use LTSpice with a PMOS? - Electrical Engineering . . .
Have you read the LTspice documentation? If you're defining a MOSFET instead of using a premade model, you'll need to have a good understanding of the model you intend to use, either Shichman-Hodges or one of the various BSIM models That's not something we can help you with here; that's the subject of anywhere from half a university course to an entire phd dissertation
- How does this MOSFET based motor driver designed work
Make sure the MOSFET's ON resistance is specified for Vgs <= your PWM drive voltage (i e read the datasheet) If you pick one where Rds (on) is specified at Vgs = 10V and you're driving it from 5V or less, it WON'T act as an on-off switch; it'll waste power, get hot, and won't drive the motor properly
- mosfet - How to design the gate resistor value? - Electrical . . .
Questions: 1) How to calculate the MOSFET input resistor? 2) What are the factors affecting the MOSFET input resistor calculation? 3) What will be the maximum, minimum resistor value possible and effect in the circuit if the resistor value is changed (Increased or decreased) ? Please let me know if any further info is required
- transistors - Short in MOSFET between Gate and Drain - Electrical . . .
When The Drain and Gate of a MOSFET are connected together, A two-terminal device known as a ''diode-connected transistor'' results if drain and gate is shorted then MOS will behave as a diode connected load and it will never go to triode region and can be used as resistive load offering a resistance equal to 1 gm if drain and source is shorted then MOS capacitor in which SiO2 will behave as
- Transconductance of a MOSFET - Electrical Engineering Stack Exchange
I am trying to understand this formula to find the transconductance of a MOSFET transistor, but I am not getting the passage from the second to the third line What happened there? Thank you
- Relationship between Vds and Vgs- MOSFET
The MOSFET acts like a voltage-controlled resistor This region is used for switching Saturation (Vgs > Vt and Vds > Vgs - Vt) -- current flows from drain to source The amount of current is proportional to the square of Vgs, and is (almost) independent of Vds The MOSFET acts like a voltage-controlled current source
- Do MOSFETs have voltage drop across source and drain when turned on?
Like diode and BJT having around 0 6V drop, is there any voltage drop across the MOSFET drain and source when the MOSFET is turned on? In the datasheet, they mention diode forward voltage drop, but I assume that it for the body diode only
- mosfet - How to find the Q point of the NMOS transistor in Voltage . . .
Only one of the two applies to this circuit, depending on whether the MOSFET is in the linear or saturation regions Guess that the MOSFET is in saturation, which means
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