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  1. PMOS LTSpice issue - All About Circuits

    Mar 9, 2025 · The PMOS circuit is powered by 14VDC and is using a 2n3904 to switch the Gate on the PMOS. The gate is going from 14v to 0 v, but the Drain is only going from 13.98v to …

  2. How and when to use a NMOS and PMOS as current source/sink …

    Feb 14, 2024 · Discussion on using NMOS and PMOS as current sources, sinks, or voltage sources in circuits, addressing challenges and pin configurations.

  3. PMOS CMOS strong 1 0 problem - All About Circuits

    May 10, 2008 · I have some problem regarding the strong or weak "1" "0" problem. the reason why PMOS produce weak 0, because the PMOS wil turn off at some point. the problem I dont …

  4. How do i calculate VDS? Is there an equation for it?

    Jun 20, 2022 · These are two MOSFETS NMOS (the lower one) and PMOS (the upper one) The colored triangle just means that they are in saturation My question is: Lets suppose we have a …

  5. PMOS and NMOS symbols - All About Circuits

    May 30, 2024 · The symbols in this link are shown for NMOS and PMOS for both Depletion and Enhancement mode. Those are the commonly used symbols. The question I had was how do …

  6. Threshold voltage interpretation in mosfet saturation biasing

    Apr 19, 2025 · 2.What is the meaning of absolute value in the PMOS saturation condition? We use absolute value for simplicity, we simply want to have the same equation for NMOS and …

  7. PMOS not turning OFF at higher Voltage | All About Circuits

    Jun 17, 2024 · The PMOS should provide voltage across this load for a very short period of time (100us-150us). During switching, I have observed that the MOSFET works absolutley fine …

  8. Buck Converter with PMOS - All About Circuits

    Feb 13, 2018 · That is, if I want to make the PMOS conducting, I have to apply any voltage between -4V to -20V across source and gate terminals. In a buck converter the source of …

  9. PMOS does not fully turn off - All About Circuits

    Oct 29, 2024 · HI. I am trying to design a CMOS Inverter. NMOS turns on and off as expected. However, PMOS does not fully turn off

  10. Importing power mosfet model into LTspice - All About Circuits

    Oct 10, 2016 · Hey all, I am somewhat of a newbie when it comes to using LTspice. I have a Pspice model of a power mosfet that I downloaded from the Infineon website and I want to …