Measuring a MOSFET’s Miller Plateau - Workbench Wednesdays

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[mahmoudgaber]

I watched several videos about Miller capacitance, but I've enjoyed this one the most

[klausziegler]

A unique video that experimentally explains what you only see in diagrams. Thank you for this excellent channel.

[astoops]

A good explanation. Something for me to consider (better) than I have in the past. Thanks.

[azyfloof]

I'm using MOSFETs in a new design for the first time ever, so this was useful! Gonna be measuring some switching voltages tomorrow 🥰

[Hindu]

Very nicely explained!! Really understood the Miller plateau well!! Thanks a lot!

[John-riu]

Good video for basic understanding of MOSFETs.. good video.

[RexxSchneider]

Is there a follow to this? As a brief demo of the Miller plateau, it's okay, but what most folks really want to see are some concrete examples. It's reasonable to skip the "bunch of maths", but then why not simply connect a multi-turn pot of about 250Ω as a gate resistor and show how you would optimise the switching for a given mosfet and load? You could easily use the Arduino to switch the mosfet faster and faster in order to see how it heats up and demonstrate the upper limit of the gate drive resistor.

[adrienferreira]

Thank you very much sir, it couldn't be clearer.

[bluesteelbass]

Interesting to see slowly turning it on versus slamming it on, both with probing the curcuit and radiated energy. Would have really liked to see the results with different resistor values. That active probe most certainly would give infinitely more accurate results compared to everyday 1/10x probes, which would be even more beneficial to see. Does rise and fall times listed in the datasheet coorelate completely with the input and output capacitance? What other things would you consider for rise and fall times to optimize switching speed? Look forward to a follow up video on this subject

[angerwurst]

Awesome video!
Thank you!
There is one thing I dont understand yet,
on 7:51 the gate (orange) seems to be instantly charged over a 3k resistor, but the mosfet is reacting with an time offset, did you maybe insert a picture taken with the probe on the wrong side of the charging resistor, directly on the signal generator?

[SparkyLabs]

It kind of failed to actually explain what happens but hey, so long as the giant power pro box is in shot that's that matters to the producers.

[jazzjohn]

What's the make/model of the hall effect current probe? Thanks.

[softa]

Hi, I need help, this is a digital temperature sensor on the pellet burner electronics. Everything works well but I need a little diversion on electronics. The thing is that at some point I need to tell the electronics that some temperature has been reached and if creativity has not been reached. How to influence that temperature via a sensor. There are three wires on the sensor: green, brown and white. Green is electronically connected under one connector and brown and white are connected together under the other connector. So, three wires, two connectors. Thanks.

[Learnelectronics]

Hello brother Ilike your video thank you very much

[chedidkamal]

no first ?, ok I'll "transmit" it

[jamich]

Is there no better way to explain how mosfet works ? this is fast and complicated.