HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Dec 04, 2010, 05:56 PM
Registered User
Wisconsin
Joined Jan 2007
181 Posts
Need help on how to connect an AR6400 for brushed.2S motor

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
bob2fly is offline Find More Posts by bob2fly
Reply With Quote
Sign up now
to remove ads between posts
Old Dec 04, 2010, 08:39 PM
Lawn dart pilot/builder
Prime_8's Avatar
N.L. Canada
Joined Jun 2010
2,337 Posts
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 .
Prime_8 is offline Find More Posts by Prime_8
Reply With Quote
Old Dec 04, 2010, 10:41 PM
Registered User
I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,955 Posts
I think I bought 1N4003 diodes, the white band on the diode goes toward the 6400.
TODD
I R Irv is online now Find More Posts by I R Irv
Reply With Quote
Old Dec 04, 2010, 11:31 PM
Lawn dart pilot/builder
Prime_8's Avatar
N.L. Canada
Joined Jun 2010
2,337 Posts
^^^ 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
Prime_8 is offline Find More Posts by Prime_8
Reply With Quote
Old Dec 04, 2010, 11:47 PM
Power Wheels Guru
UNGN's Avatar
Southlake, TX
Joined Jan 2008
7,327 Posts
Here's a 2S brushed Brick schematic for the AR6400
UNGN is offline Find More Posts by UNGN
Reply With Quote
Old Dec 04, 2010, 11:51 PM
Playing with AutoCAD!
PiperCub49's Avatar
United States, ME
Joined Oct 2008
2,654 Posts
Quote:
Originally Posted by Prime_8 View Post
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
PiperCub49 is offline Find More Posts by PiperCub49
Reply With Quote
Old Dec 04, 2010, 11:55 PM
Power Wheels Guru
UNGN's Avatar
Southlake, TX
Joined Jan 2008
7,327 Posts
Quote:
Originally Posted by PiperCub49 View Post
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
UNGN is offline Find More Posts by UNGN
Reply With Quote
Old Dec 05, 2010, 12:25 AM
Playing with AutoCAD!
PiperCub49's Avatar
United States, ME
Joined Oct 2008
2,654 Posts
Quote:
Originally Posted by UNGN View Post
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
PiperCub49 is offline Find More Posts by PiperCub49
Reply With Quote
Old Dec 05, 2010, 12:25 AM
R.C. Aviation Fanatic
Razors edge 29's Avatar
Canada
Joined Aug 2009
21,149 Posts
For the 2S set up used with 2 1S batts - you just y off the power lines and add in two 1S connectors correct?


Quote:
Originally Posted by UNGN View Post
Here's a 2S brushed Brick schematic for the AR6400
Razors edge 29 is online now Find More Posts by Razors edge 29
Reply With Quote
Old Dec 05, 2010, 12:41 AM
Lawn dart pilot/builder
Prime_8's Avatar
N.L. Canada
Joined Jun 2010
2,337 Posts
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 .
Prime_8 is offline Find More Posts by Prime_8
Reply With Quote
Old Dec 05, 2010, 10:38 AM
R.C. Aviation Fanatic
Razors edge 29's Avatar
Canada
Joined Aug 2009
21,149 Posts
I have ordered a plush and have the AP05 BL so I am hoping to use it on some 2S projects.
Razors edge 29 is online now Find More Posts by Razors edge 29
Reply With Quote
Old Dec 05, 2010, 10:27 PM
Lawn dart pilot/builder
Prime_8's Avatar
N.L. Canada
Joined Jun 2010
2,337 Posts
nice .
cant wait to see what you do .
Prime_8 is offline Find More Posts by Prime_8
Reply With Quote
Old Dec 08, 2010, 08:54 PM
Registered User
Wisconsin
Joined Jan 2007
181 Posts
Another brushed AR6400 question

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
bob2fly is offline Find More Posts by bob2fly
Last edited by bob2fly; Dec 09, 2010 at 04:44 PM.
Reply With Quote
Old Dec 08, 2010, 09:24 PM
Lawn dart pilot/builder
Prime_8's Avatar
N.L. Canada
Joined Jun 2010
2,337 Posts
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 )
Prime_8 is offline Find More Posts by Prime_8
Reply With Quote
Old Mar 29, 2011, 11:07 PM
Registered User
Matt D.'s Avatar
Greensboro, NC
Joined Jul 2002
780 Posts
Hey Razor,
I just saw this thread again.

Have you done any more work towards this little plane?
Matt
Matt D. is offline Find More Posts by Matt D.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion How fast do you guys think this thing will go? scolen3 Electric Plane Talk 12 Jun 23, 2010 12:34 PM
Question What other airframe would the guts of a UM P51 work with? Razors edge 29 Parkflyers 18 Jun 01, 2010 08:53 PM
Question Do you think this will work!? dan c Foamies (Scratchbuilt) 37 Oct 20, 2009 07:31 PM
Discussion I think this combo will work with this plane, do you? FlyingLakland Power Systems 8 Dec 01, 2008 11:08 PM
Do you think this will work?????? Foam bashing hehe Dauntae Foamies (Kits) 4 Oct 13, 2001 09:07 PM