Back in August there were several posts related to using 2S power on a brushless ESC all driven by an AR6400.

Does anyone have any recommendations on what brushed esc can be used with a 2S power source to power a brushed 8 volt motor?

I have an old unused brushed esc (ElectriFly C-12 Micro ESC 2-3 LiPo), but its output voltage reads 5 volts on my meter, and the AR6400 only wants 4 volts.

And I do not need to use that esc and another would be acceptable.

Also a schematic would be appreciated.

Thank you for your ideas and assistance.

Bob

go to radioshack , look for a diode like 1400n or n1400 or n1004 .. some mix of thos LOL
sorry i forget .. LOL

anyhow , if you look it will have a just over 1v ..look for one that can take teh amps you need to draw and has a forward voltage drop of just over 1 V
shoudl be a wee pack of 2 ... now go home power uo your esc , ( only ) ,
put the diode on the RX supply/bec pin (centerpin) . and test the output with your meter .
if you did it rite you shoudl be supplying your ar4600 with 3.5 -3.7 v ? if i remember .
if nothing flip the the diode end for end .

I think I bought 1N4003 diodes, the white band on the diode goes toward the 6400.
TODD

^^^ yeah that's it ..
ieach diode inline dropps voltage ,
i theory you could run a 3s esc & motor with enough diodes. LOL
trick is getting V drop correct is all .
the ESC wil LVC on it's own so it sorts itself.

was thinking of trying to make UM p47D , to hold a 5g HK brushless in direct drive using a plush ESC ,
just need some spare UM guts. LOL

Here's a 2S brushed Brick schematic for the AR6400

Originally Posted by Prime_8

ieach diode inline dropps voltage ,
i theory you could run a 3s esc & motor with enough diodes. LOL
trick is getting V drop correct is all .
the ESC wil LVC on it's own so it sorts itself.

I actually need to get a 3S setup. Does anyone know what diode(s) I would need?

Thanks,
PC49

Originally Posted by PiperCub49

I actually need to get a 3S setup. Does anyone know what diode(s) I would need?

Thanks,
PC49

The same. Battery voltage doesn't really matter. Its the BEC voltage that is being reduced by the diode. You could use a 10S ESC if the BEC voltage was 5.0V

Originally Posted by UNGN

The same. Battery voltage doesn't really matter. Its the BEC voltage that is being reduced by the diode. You could use a 10S ESC if the BEC voltage was 5.0V

Thanks UNGN. So there I have it. 3S/AR6400 combo with the 1N400X diode...so cool.

-PC49

For the 2S set up used with 2 1S batts - you just y off the power lines and add in two 1S connectors correct?

Originally Posted by UNGN

Here's a 2S brushed Brick schematic for the AR6400

yeah .. but series , as the 2s name implies,
just test V with your meter to be sure you got it ..

i made a 2x mini jst females to 1 Jst (red) , so i don;t have to change speed control .


i'm thinking same , i have some 160mah's still fresh un used so they woudl match up well.
now i need a plush & a new 5g BL , i thinkit will look nice in a p47d cowl .
needs 5 A .. at WOT with a 5x3gws .. but makes ~140g thrust .
my 2 160even at 20c only my a hair over 3A .. lol
so i may order a rhino 2s pack .

I have ordered a plush and have the AP05 BL so I am hoping to use it on some 2S projects.

nice .
cant wait to see what you do .

No more questions..diodes solved my last issue.

I appreciate everyone ideas on getting a brushed ESC and motor to work off of the AR6400.

Everything works perfect as per UNGN's schematic.

Again, thanks to all for your help.

Bob

black bec / is actualy your bus gorund , it can / should go to the ground pin on brick where ESC / servo woud go .
basicly , hook up you ESC to the brick with just the red (bec +V high) lead off .
some esc's the ground(black/brown) side of the bec / signal wire is common but not linked to thier main ground in . ( isolated to reduce noise to brick )

Hey Razor,
I just saw this thread again.

Have you done any more work towards this little plane?
Matt