/diy/ - Do It Yourself

>>1554620
You can switch almost 2 amps with cheap bjts at much more than the frequency the dude asked.

>>1442926
>>1442900
I'm making a psu and I was trying to size up the transistors. I would need to know how much each would dissipate and thought understanding how to fully describe the system was a good exercise.
>>1442900
I read the datasheet and aplication notes, what you are saying is not what I'm asking. And the aplication notes have the pnp example but again, they do not give anything to explain it.
>>1442926
I was going to use the block diagram but got stumped there too.
>>1442896
I was going to do that, but I decided to try to understand it, using math. I want to learn (not only gather experience from tests and measurements; which is also very useful.).
>>1442904
>it works because the computer says it works
no shit, I know it'll increase the current capacity, I want to know which paremeters affect that.