I'm making hexapod robot and using 3 parallel converters. 2 of them are step-down 300W 20A set to 6 V to power servos, and the other one is step-down mini 360 set to 10 V to power Arduino nano. Everything is powered from 12.6V battery up to 30A. To make parallel connections, I used connector 2 in 6 out from Aliexpress.
After turning it on, mini 360 got burned. I think it's because of too high current in the circuit. Can some confirm if that's the case or that's something else that I messed up? If so, is there a solution to power it from the same battery or do I need to use a different energy source?
Everything else works fine if I only power up servos from battery and Arduino from USB.
I'm not sure, but it is possible that I swapped input and output. Before I try again, I would like to know if difference in powers isn't issue. I think that converters connected in parallel shouldn't have impact on other converters, but I would like someone to confirm that.
My fear is that the controller 3.3 volt converter will get overloaded when the transmitter goes active if can't deliver the amount of current needed. It's about mAmps, not voltage.
Yes, the voltage is correct. The concern is that the 3.3v output from the Nano may not be able to supply enough current ie mA to power the transmitter. Check the data sheet for the transmitter to determine the required current and the data sheet of the Nano to see how much current it can supply.
A good rule of thumb is to not draw more than 80% of a power supply’s rated output.
