No it couldn’t, without these hours of lectures, you would be completely lost watching that video (even though it is awesome, but these things take time to understand and masterize)
Would have been great for revision! But as enginstud says you have to become fluent in the language and that takes time. Amazing that 50 years on, it is still all so familiar…
Great work Phil, Thank you. Im looking forward to signing up to future courses with you. You are an excellent source of information and its application. I always highly recommend you to anyone seeking knowledge and a clear explaination.
Thank you very much, Dean! Also thanks a lot for recommending the videos to others :) Currently quite busy with work and making videos but am still working on the FPGA/advanced hardware design course.
Phil, you are simply amazing dude. I am the one who wants to be an embedded system engineer so I have interest for both hardware and software. You are the best . Notifications are open !
Hello!! Great video! A question: how did you measure the gain of the input stage and the voltage gain stage? Using a very very small input in order to not reach the supply rails in the output?
I think it might have been useful, to compare the major ballpark "specs" of the opamp you created to a real-world jellybean part, like ua741 or lm358; to give some context to how much better (or worse?) a bog standard IC can be.
I thought I knew everything about opamps, but I was wrong! This is the first time I see someone really using discrete transistors instead of an IC 😥😎. Pretty impressive work for such a basic topic!! Thank you Phil for your efforts!
Excellent video. Hope you will cover stability of such an opamp soon. I'd love to see second order compensation methods like TMC. They are a great advantage of discrete opamps.
Awesome video! Maybe you should do a dedicated series of videos regarding how to use opamps (the first half of this video), as your explanations are very clear and precise. And maybe some follow-up videos going deeper into the opamp of stages. For example, we hear about long tail pair difference amplifier but not much explanation about how they work.
Phil's a legend. Great work, Great explanations, nice matter of fact approach to some quite difficult subject matter. He makes it accessible in a way that we rarely see.
Im here because im confused about something I realized in an opamp schematic. It was my understanding that one input could accept a positive or negative input voltage, however when I looked at the schematic it was only npn transistor on both input. Npn transistors wont turn on with a negative voltage. So either there is npn and pnp opamps or im missing a trick
I try to understand the internals of am OpAmp since WEEKS, still not there. But maybe I will build a similar board, using this nice "dual transistors" in 6-pin packages to get as well matched pairs as possible. Thanks for all your gorgeous videos, you are one of my the leading advanced teachers here on RU-vid.
Hi, do you know anything that deals with the design of an operational amplifier? do you know where I can find the version with a differential nmos pair and not pmos?
Clipping is undesirable unless you want a gnarly overdrive sound, haha! Would be an interesting way to make a hard-clipping circuit or a fuzz of some kind. However, with the usual 9V power rails in a guitar pedal, that would be insanely loud. Great video Phil!
Thank, Jose! Haha yeah would probably sound pretty rough the way it's clipping there but who knows. Definitely wanna make a video on overdrive/distortion in the near future though :)
