videos on how 555 comparator works?

[Mbira]

Hi folks,
I've been here a long time, but I'm a hack. I can build stuff from schematics, but I can't design anything. I'm trying to change that and so I've decided to actually try and learn electronics (what a concept, haha). I like building modular synths and so I'm starting by trying to really understand the inner workings of a 555. I understand the big picture of what the chip itself does, but I'm trying to understand how the descrete transistors that make up each comparator works. To be clear, I literally just watched this video on how transistors work and this is the level I'm hoping to be working in:


Can anyone ideally point me to a video or documentation that would describe every step of the descrete comparators in a 555 (or anything similar. I found this, but it's in Italian ( I think):

Thanks!

 

[Mbira]

A friend shared this link that goes in to the inner workings of a comparator. I'm glad to see that it's as complicated as it seemed!
https://ch00ftech.com/2012/06/20/22...pOWU64K_UAy-usSdjQ_aem_xqSGBYEsyEB3_8a3-y0L2g

 

[CJ]

This is what you want right here>

 

[Mbira]

This is what you want right here>

Unfortunately not. I'm not looking for circuits that use the 555. I was specifically wondering about how the internal discrete components in the 555 are working-specifically the comparator sections within the 555.

 

[Philbo King]

The comparators inside are like any comparator. They saturate to the positive rail when Vin+ > Vin-, or saturate to the negative rail otherwise.

Maybe this link will help.

https://www.build-electronic-circuits.com/555-timer/

You might find a datasheet somewhere that breaks the block diagram into indivdual transistors in a schematic, but unless you are at engineer-level at analysing circuits I doubt if it'll help you much.