Making Transistors Easy.. With Op-Amps!

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Today we're looking at how our op-amp golden rules can make those annoying things about transistors disappear completely! No more VBE drop, No more temperature problems!
By putting a transistor in the feedback loop of an Op-Amp, the negative feedback will enable us to monitor what the output of the transistor is, and the op-amp will compensate for any variations or unkown quantities in the transistor. Making our transistor designs much easier to manage!
Schematic: drive.google.c...
Patreon Video: / 57948865

Опубликовано:

29 сен 2024

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Комментарии : 25

@alfredtambunan8961 Год назад

This is new but genius way to solve many of my problems. Thank you Great Teacher...!

@timothykraft9245 10 месяцев назад

Great explanations. So clear. Thank you.

@zeiram8230 2 года назад

Wow. Op amps are better at biasing transistors than I was in school. 😆

@TheAudioPhool 2 года назад

me too :(

@thomasgauntt 2 года назад

Maybe the most underrated electronics channel on RU-vid

@dannyroessler 2 года назад

true, I learn so much here, no blingbling, just a bit of math

@oseyedian 9 месяцев назад

This was a really interesting and informative video. Thank you very much fine sir.

@MrAlFuture 2 года назад

Wow, you're the tutor I wish I had at uni! Your videos are really great. I like how most new concepts you introduce you describe in terms of solving a problem you've just illustrated. Thank you!

@TheAudioPhool 2 года назад

Thanks so much! I always try and set everything in the context of something you can actually do, i feel like it makes everything easier to grasp. I can't learn something unless i can imagine what it's actually doing!

@ernestbean2998 Год назад

It would have been great to have these vidios at colledge

@Enigma758 Год назад

I made the 2nd circuit with an LM324 (rail to rail), 2n3906 PNP, 1k Rc, 1k pot on the emitter, 5v supply. While the circuit works, I can't get an emitter voltage below 1.3v when I set my vref below that (however if I configure the LM324 as a buffer, it tracks the voltage below 1.7v very close to low rail just fine though). Any ideas why the ~1.3v limit?

@yurkshirelad 11 месяцев назад

Brilliant!!

@martindowney7915 2 года назад

Great explanation, love the chanel

@twobob 2 года назад

Very nice. I swear you added the 50Hz hum for the voiceover on purpose ;)

@MrBanzoid 2 года назад

Most useful and clearly explained. Thank you. Duly subscribed!

@marcelpost4052 2 года назад

amazing content, thank you very much for your clear and practical demonstrations. I have almost watched all your videos, but I wonder if you have made such a clear video on the why's and hows of designing a power supply for an opamp. Keep up the good work! :-)

@TheAudioPhool 2 года назад

I'm literally making that video as we speak!

@marcelpost4052 2 года назад

@@TheAudioPhool Great minds think alike! Hahaha.. Please don't rush it. I know how tempting it is to hit upload and then later come to the realisation I should have edited that or added this. Your video series is already a treasure trove of information and your enthusiasm is very inspiring, so we're happy to wait for the final product, take your time.

@ccv3237 Год назад

I love op-amps in general, and your detailed explanations. These are very useful devices.

@richtigpopichtig4563 2 года назад

A video on simple capacitive touch plates would be very awesome.

@TheAudioPhool 2 года назад

That does sound like fun tbh. I'll put it on my list!!

@G-Arslan 2 года назад

Hi, thank you very much for these videos mate. I wonder if the op-amp driven class b amplifier had any other imperfections other than the requirement of high slew rate op-amp at high frequencies