@Yash, I'm not sure why he's using 300V. There are a lot of interrelated variables in this system that a designer has play around with.... possible explanations: (1) The coil he's using has higher resistance either from the length of the windings or the wire gauge, so he needed more voltage to get higher currents; (2) If he's using thicker magnets, he may need to up the voltage to generate more magnetic flux to switch the magnets? Frankly, I'm just speculating.... You could probably email Andrew Jochum if you want to understand his design.
Dave is the Regulatory Lead at Airware, handling all all regulatory matters within the company including operational approvals, and compliance. He is also involved forward looking organizations, and research like ASTM, NASA UAS Traffic Management, AUVSI, and FAA UAS Test Site operations. Dave also supports the integration team in flight testing, and operations. He received his in Physical Science at the University of Maryland, and an in Aeronautical Science with a specialization in unmanned aircraft systems from Embry-Riddle Aeronautical University. Outside of work, Dave maintains his favorite childhood hobby flying Radio Control aircraft, and when he can afford it, full-scale aircraft. He also enjoys playing guitar, golf, ultimate frisbee, and camping.