i want to swap LEDs 1 and 4.
i placed them in current arrangement due to lack of overhead voltage for STRING 2.
i'm limited to 12 volt supply and have some voltage loss through customer's poor switches and connections.
voltage drop across D3 and D5 causes STRING 2 to run out of voltage. yes, i'm already using schottkys.
is there a way to do this?
thanks

MOD: Hi joe, cleaned up your image. E

 

Replace those diodes with low Rdson MOSFETS. Would take some
circuit design to control their gates.

Regards, Dana.

 

i tried to put a Pfet in place of D3 and D5 but my feeble mind won't let me hook up the gate in a way that i think will work.
and if the fet is turned on, will current go through at zero voltage drop instead of through the body diode?
and i'm still open to other methods to solve my problem.
thanks

HEY CRUTSCHOW
please email me at joewales44@gmail.com
i have a proposition for you.
thanks

and MODs
i hate for you to have to keep cleaning up my drawings.
is that something i can learn to do?
thanks

 

MODs
i hate for you to have to keep cleaning up my drawings.
is that something i can learn to do?

hi joe,
I use ScreenHunter and Paint Shop programs to capture and clean up images.
E

 

hey mod.
how's this?
used snipping tool.
my kid showed me how...lol.

 

Off Topic:
hi Jose,
That is nice and clear.
As personal preference to suit my tired old eyes, I make a negative of the image.
E

 

ok, i'll do it this way from now on.
changed the background color in diptrace.
i'm old too and black seems to be easier on my eyes.
best thing i've done is upgrade to 43" monitor but i sit in recliner 4 feet away.
eyes ain't hurt since.
thanks

 

how do i connect Q4 and Q5?
thanks