Discrete audio amplifier project PT16.1 Miller compensation

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JohnAudioTech

JohnAudioTech

Күн бұрын

Пікірлер: 22
@davidahmad6090
@davidahmad6090 2 жыл бұрын
My goodness sir, I can get a better conceptual understanding of stability with just a handfull of your videos, compared to a whole semester of university. Great work as usual John, thanks again.
@coilsmoke2286
@coilsmoke2286 5 жыл бұрын
No Hurry On This Side Of The Screen either. I'm digging the process. Enjoying the conversation between both sides of YOUR brain for a change. Saves US from asking a bunch-a-questions. Very relaxing
@zodak9999b
@zodak9999b 5 жыл бұрын
The amplifier's really coming along nicely, John. I'm learning a some new things, too. It's also nice to see Snickers, since I seem to recall that we only got a meow last time. :)
@trulysachin
@trulysachin 3 күн бұрын
I watched your playlist twice and I am getting a lot each time. Thanks a lot for this playlist. One question though, could you explain the section of input stage CC where we have 3 resistor junction connection with a 47 cap tied to +ive rail.
@SciPunk215
@SciPunk215 5 жыл бұрын
Good stuff here.
@iblesbosuok
@iblesbosuok 5 жыл бұрын
Excellent experiment, sir, bloody excellent experiment. Under-damped, critical-damped to over-damped close loop control system mechanism performance. 22:47 is Snickers bored with everything? Let him wandering around in your neighborhood, sir. Cheers from Indonesia
@twotone3070
@twotone3070 5 жыл бұрын
"Hang on my probe lead just fell off" You don't know how many times I've used that line.
@williamhazelwood8288
@williamhazelwood8288 5 жыл бұрын
Keep it up
@laxr5rs
@laxr5rs 5 жыл бұрын
Good one. Thanks.
@twotone3070
@twotone3070 5 жыл бұрын
This great stuff.
@C0wb0yh3nk
@C0wb0yh3nk 5 жыл бұрын
HI John, maybe it's also a good idea to put a smal capacitor from your board ground to the heatsink. Your heatsink creates a big capacitor with respect to your board.
@nitescuvalentin6872
@nitescuvalentin6872 5 жыл бұрын
i hope you have a chapter on how to cool your amp, because i think it will need a hefty heatsink in order to get best performance from it.
@JohnAudioTech
@JohnAudioTech 5 жыл бұрын
As they say, no heat sink is too large!
@royrogers7644
@royrogers7644 3 жыл бұрын
Where did you put in those miller caps?
@johnneybot9542
@johnneybot9542 5 жыл бұрын
What do you do for a living besides spoil Snickers LOL I suggest you post these videos on the EEVBLOG "other blog" forum
@snaprollinpitts
@snaprollinpitts 5 жыл бұрын
the term you are looking for is "copper pour", not flood filled ground. mike
@JohnAudioTech
@JohnAudioTech 5 жыл бұрын
I must be thinking of paint programs where you can flood fill areas with colors.
@snaprollinpitts
@snaprollinpitts 5 жыл бұрын
@Prince Bumpkin within the electronics field, the term "copper pour" is correct. also the term flood filled ground is not found. I happen to be very fussy when it comes to English, and it's proper use. either you know the difference, or you don't.
@diymaster1121
@diymaster1121 5 жыл бұрын
Can you recommend me a decent quality class ab amplifier circuit that can give about 100w i would like to build my own amplifier but not too expensive.
@NotMarkKnopfler
@NotMarkKnopfler 5 жыл бұрын
I think you should also try a sine wave. I know why you're using a square wave to test your design, but real music and/or speech is not square. You may not see this problem at all using a sine wave. If that's the case, is it really a problem?
@johnyang799
@johnyang799 5 жыл бұрын
It's about testing stability. A stable amplifier is very important. You don't know what would cause it to oscillate and when it would. Pushing a little to the edge would be acceptable but lower than 47p would not be really acceptable in this case.
@johnyang799
@johnyang799 5 жыл бұрын
Having at least 45 degree of phase margin or more than 60 optimally is necessary. You can convert to percent overshoot.
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