3
$\begingroup$

I am a novice RC member whom is doing a university project that uses a flight controller to actuate high voltage digital servos. It is part of a ducted fan rocket. The servos : https://hitecrcd.com/products/servos/digital/coreless/hs-7235mh/product ideally would work with 6v-7.4v. They are part of a thrust vectoring mechanism whose actuation is governed by a Pixahawk flight controller: https://www.rcworld.co.za/product_details.php?proid=1507 . We intend on using a 6s Lipo battery to power the components. I would like to confirm if this flight controller is capable of handling up to 7.4V to these servos (the stall current is 1.6A). I had seen in a documentation that the pixahawk can handle up to 10V, as seen in the image below enter image description here . I would like to confirm if this is true, as I am not 100% if servo power refers to this. Additionally, I had read something about the servo rails being limited to 5V. I have not used a digital servo or flight controller before. Any advice is appreciated.

$\endgroup$
2
$\begingroup$

Yes, it is possible from the Pixhawk V2 using the Dual Power input.

See the sections "Power Architecture" and "List of features changed on Pixhawk 2 from Pixhawk 1" from the documentation.

I recommend you test the Pixhawk without components and measure the outputs to ensure the FMU power supply is separate from the Servo rail.

$\endgroup$
1
  • $\begingroup$ Thank you for the confirmation! I will look through the specified sections. $\endgroup$
    – Johan M
    Jun 24 at 13:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.