This is my first post on here so please be patient if I miss any etiquettes.
I am currently in the process of making a quadcopter with an Arduino Uno as the flight controller.
I have a 3S, 3 cell 11.1v LiPo battery powering my ESC’s and Arduino.
The ESC: Racerstar RS20Ax4 20A 4 in 1 Blheli_S Opto
The Motors: BR2205 2300V Brushless motors.
My problem occurs when I force my motors to 80% power (Limited from 100% to save their lives) in less than a second. This causes a transient that has ended up frying the Arduino Uno which is controlling the receiver, ESC’s, ect. Luckily everything else was undamaged. I replaced the Arduino and everything was good again.
Under all other conditions I have tested so far, everything works fine, and the arduino ticks over normally.
My question; How do I go about modeling an Arduino Uno as a load to see how the current and voltage affect the Arduino Uno when it is subjected to this condition.
I have the arduino in parallel with the ESC’s powered by the LiPo. This is because the Arduino can comfortably operate with 11.1V and ESC’s at 11.1V. (I am using the 9V plug thingy to power the Arduino)
The below is an LTSpice model I have made to model the ESC’s, but I am having problems on modeling the Arduino.
Has anyone done this? Does any one know how I could go about this?
Ps. I have looked and found that UBEC’s can arrest this problem, but I like modeling everything myself
Thank you in advance for any comments