G+_Michael Heinz Posted April 30, 2015 Share Posted April 30, 2015 I wonder what the flight times are like... http://imgur.com/iGs6bMP Link to comment Share on other sites More sharing options...
G+_Travis Hershberger Posted April 30, 2015 Share Posted April 30, 2015 That's exactly what I've been wanting to build. Lack of money will prevent it from happening :( Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted April 30, 2015 Share Posted April 30, 2015 Ah, they beat me to it! Link to comment Share on other sites More sharing options...
G+_John Phillips Posted April 30, 2015 Share Posted April 30, 2015 I dont see any reserve power/battery, so it must be powering the motors directly from the generator/rectifier/voltage regulator? Link to comment Share on other sites More sharing options...
G+_Travis Hershberger Posted April 30, 2015 Share Posted April 30, 2015 John Phillips I didn't notice that before myself. That was probably easier to do than a balance charger + battery + circuit to switch between battery and generator. Link to comment Share on other sites More sharing options...
G+_John Phillips Posted April 30, 2015 Share Posted April 30, 2015 there could be a weight issue? because you get pure dc out of a battery even if you charge it with a half wave bridge rectifier, so batteries act a bit like a AC filter in them selfs Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted April 30, 2015 Share Posted April 30, 2015 I need to check out more information, but you'd probably want at least a super capacitor in there wouldn't you? Give a buffer before the engine can spin up... Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted May 1, 2015 Share Posted May 1, 2015 Maybe I'm missing something, but doesn't a diode just prevent electricity from flowing in one direction? Seems like they would want a transistor to prevent power drain from the battery when the engine is running. Link to comment Share on other sites More sharing options...
G+_John Phillips Posted May 1, 2015 Share Posted May 1, 2015 I would really like to have a closer look at this drone Link to comment Share on other sites More sharing options...
G+_John Phillips Posted May 1, 2015 Share Posted May 1, 2015 How do you deduce that by this photo? Mmmm pity we cant go around it like 3D panorama. Any electronics and especially the sort that you find with drones is very sensitive to voltage changes so yes you do want good regulation, High voltage is worse than low voltage Link to comment Share on other sites More sharing options...
G+_John Phillips Posted May 1, 2015 Share Posted May 1, 2015 Wayne Hobbins Sorry i missed your previous posts, and yes you are right, but there are better ways, Few people know that current can flow in reverse and drain the batteries unless you have switched diodes or something similar Link to comment Share on other sites More sharing options...
G+_John Phillips Posted May 1, 2015 Share Posted May 1, 2015 Yes and what do you think about the arms and legs, Because they look remarkably like carbon fiber? Link to comment Share on other sites More sharing options...
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