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.
okay I finally agreed with simulation
I'm confident with some basic math , so I found output current (seen by cap and resistor) is exactly as inductor current.
what I cannot find is the "flying cap" current, if fany of you got an idea ... helpfull
1657552954
funny.... when flying cap ESR value...
As I said, I'm not very confidend with coupled unductor, that's why I finally change simulation model from coupled inductor (with K spice factor fixed to 1) to a inline Xformer .
And I don't know why, simulation isn't the same now....
I push two package , first one with coupled inductor, the...
well... maybe, by simulation I cannot point out flaws. I'm not very confident with coupled inductor and there "magic"
what I see , is a much lower current ripple seen by the input.
I found this schematic in a project where input filter cannot be build with chemical caps (especially the big one...
in CCM , basic transfert fonction seems same as "standard" buck one's.
my hypothesis is : when in steady state, voltage across capacitance is equal to Vin as it could be if switch is off for a long time.
Hi all
I found out, in my compagny archive, such a topoly
does someone know the common name for it?
after that, I'll google the name and probably be able to found out some equations.
The main advantage I could see , is a lower input current ripple compared to a buck 's one.
inductor are...
btw
to fix this SMPS : change FAN7387 H driver, both MOSFET, remove TRIAC, change 2010 0R5 resistor and the small bipolar transistor (npn T9) next to it, the fuse....
from time to time C9 is damaged : 1nF 500V
regards
Hi all
I'm already on another french board, and I have also fix several Zeppelin's power. If it can helo I give you the like to the thread where I post some schematics "reversed"
The main problem come from the main's voltage detection circuit : It automatically commute a triac to manage...
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.