Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hello !
ok...I will pay more attention next time... (That's the first time I use a step-down converter on board...)
But now I have to make this board working changing the less component possible.
Can anyone confirm this : (?)
- (in a Simulator...) > lowering the Ct capacitor to around 220pF...
So they even mount a false board (with value wrong value) to take picture of it ?
if this is the case, I don't qualify this product as open source (as they claimed...)
- - - Updated - - -
not really, but now, I know almost all value seems to be wrong...
I believed this schematics, I had all...
Good morning all !
As I said, I know the data sheet. I mean : I know there is a good example in it. (5V 500mA, example you join here, can do the trick...)
But the Olim** board looked like easy to reproduce.
It seems "open-source" is not really "open".....
I was believing a commercial board...
for information :
https://www.olimex.com/Products/Duino/PIC32/PIC32-PINGUINO-OTG/resources/PIC32-PINGUINO_AND_OTG.pdf
How can they have this power supply working ??
oh... unfortunately, my board is already done.
Powering by USB is fine. That's my bad side... I know...
- - - Updated - - -...
This supply must power a µC (PIC32 at 3.3V with LT1117 converter) and (at least) a TFT at (or giving for) 300mA at 5V.
I think 500-600mA should be the minimum for future development.
Dear treez, thank you !
I knew it was a LTSpice file since I opened it.
It's seems to be "more accurate" as you said. I see it's an "emulation of the MC33063". I'm also not really familiar with "electronics simulator".
;-)
Can I reveal here the real board ? (because it's a commercial link)
The last revision of the datasheet AND photos seems to show us a 10µH inductor. I'm feeling better because I pointed ( I think) the good component.
But with the results: I'm completely lost !
Hi ! thank you to take the point,
- My input voltage is 12VDC (but may be 24 in the future...)
- Yes, sorry for the mistake, it's 10µH :
https://industrial.panasonic.com/cdbs/www-data/pdf/AGM0000/AGM0000CE13.pdf
ref: ELL6PG100M
And fortunately I know the datasheet. But it seems the couple...
Hello community !
I'm an hobbyist doing some stuff at home.
I have a question regarding this schematics coming from a commercial product.
I made (or I took) the same circuit at home, but I don't have 5V at the ouput but only 1,7V.
After that I putted those value into many "online MC33063...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
