Using Two Brushless at once??

Started by naatumach, September 20, 2010, 02:25:33 AM

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naatumach

If i intend to use two counter rotating brushless motors to get a more stable flight.
I will have to use 2 sets of Motor+esc. and connect them using Y-connector. BUT if i do so. i will be connecting two batteries to the Rx through my esc which in means i stand a good chance of burning my Rx (which incidentally i have a lot of experience in  :banghead: ).
I also considered using a common ESC but i dont know if this idea will work. And if it would will i have to get an esc of combined amp or the the motors will be in parallel?
My question-
HOW DO I PUT TWO MOTORS WITHOUT BURNING THE Rx?

Regards
Vaibhav
Motto: build, fly, and modify.
Prefers working on designs than electronics.
No pre-made plans. Use blueprints, make calculations, build, fly, troubleshoot, fly again.

prateek13

in that case you should take out the middle wire of an esc ,it doesn't matter which one
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ujjwaana

Pratee kis right, bout you can use another strategy:
           
                       Diode IN4001
/-----------\    (+)     |\|____ 
|                | --------|/|
|                |     (-)   
|  ESC 1      | ---------------
|                |  (PWM)
|                | ---------------
\-----------/

                       Diode IN4001
/-----------\    (+)     |\|____ 
|                | --------|/|
|                |     (-)   
|  ESC 2      | ---------------
|                |  (PWM)
|                | ---------------
\-----------/


Put one IN4001 Diode in series of the Positive line of each of the ESC before they reach the Y cable. This would give kind of fail safe and provide more power. This diode is very easily available at any radio/tv parts or repair shop for over 1 Rs a piece.
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rcforall

enclosed is the  diagram for connecting 2 motors .

Cut the positive of 1 ESC or on 1 of the branches of the Y connector .

rgds
sai
www.zuppa.io : vehicle telematics, ADAS, IoT , Drones

naatumach

Thank you for all the replies :).. I will definitely try them out and revert to you.

Regards
Vaibhav
Motto: build, fly, and modify.
Prefers working on designs than electronics.
No pre-made plans. Use blueprints, make calculations, build, fly, troubleshoot, fly again.