Designing Power MOSFET Circuits - Circuit Tips and Tricks
Why Electrical Engineering Stack Exchange recommends it
Electronics Stack Exchange users link it when asking about MOSFET gate drive, heating, and power dissipation calculations in practical switching circuits.
Recommended by 1 people across 1 different months, 2021 to 2025.
What it is
A 20-minute tutorial from MicroType Engineering on selecting and designing with power MOSFETs. It covers the key equations needed for practical circuits, such as gate drive and power dissipation, without heavy derivations.
What people said
Recommends SystemTheory · 2021-07 · Electrical Engineering Stack Exchange · on “Why does a MOSFET's temperature shoot up when the gate isn't at the correct voltage?”
This video may be helpful to solve your application challenges Designing Power MOSFET Circuits - Circuit Tips and Tricks: [this video]
Cites Ice n Fire · 2024-12 · Electrical Engineering Stack Exchange · on “Why is the current used in calculating the dissipating power 25A?”
In this video [this video] , the guy calculated the dissipating power for a mosfet [LINK] by using I = 25A. Why is it 25A? I can't even find 25 in its datasheet [LINK] .
Cites Berentis · 2025-01 · Electrical Engineering Stack Exchange · on “Making a SPDT switch using MOSFET”
Just as a forewarning, I am a hobbist not a qualified EE. One difference I see between the two circuits is the location of R67 between the pico 3.3v and the mosfet gate. My understanding is the mosfet gate has some internal capacitance which can spike the current being pulled from the output pin. D7 has no such protection. I believe the first circuit is pulling two much current from the pico, in an initial spike, causing it to reset or at least drop the output voltage on D7. My thoughts come from a video I saw recently on power mosfet circuits. [this video]