I'm fairly new to this platform but would like your advice on one of the projects that I'm working on.
I am currently working on adding a tethering system to the DJI S1000+ spreading wings octocopter to allow for 'unlimited flight time.' I am planning on using a generator to supply AC current, a power supply to step the voltage down and switch to DC and then make use of DC-DC buck converters to step the voltage down and up the current.
However, I'm running into a lot of problems and I can't seem to find the correct buck converters and power supply. The motors draw a lot of current - about 40A.