Redundant powering for Pixracer

Does the Pixracer support the capability to have redundant power sources? For example, I want to use the power module as the primary power source and a regulator on the servo rail as the secondary source.

Thanks,

Paul

There is no internal connection between the servo rail (VDD_SERVO) and VDD_5V_IN (avionics power) on the PixRacer PCB. If you want redundant power, you’ll have to do it upstream of the avionics power input (VDD_5V_BRICK) using additional hardware. I’d recommend that you keep servo loads as far away from your avionics power source as possible if reliability is what you desire.

Thanks kd0aij, I understand now.

What is the amps draw maximum of the sbus receiver port?

Thanks,
Paul

There is a 0.3A fuse in the VDD_5V_RECEIVER line which powers the receiver.

Ok, thanks kd0aij. That’s interesting. It tells me I need to use external power for larger transceivers.