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Jtepper
Joined: 04 May 2009
Posts: 44
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Yep they are the bosh worm drives, and they are 24v so they should overvolt pretty good to 50v, as they are very quiet and efficient at 24. Havnt got a scematic on the comp, did it by hand, but i will post some photos soon.
Yes using relay reverse in this version, but one of the relays has done somthing weird in testing today, (you can hear the relay switching but it doesnt connect the pins), so it might be time to try a h bridge version. Allthough i am just using gay 30A dpdt relays from jaycar (like $20 each too eeeekkkk). Does one know of some good relays i can replace them with?
Im using dual IRF1405N mosfets to drive each motor if anyone is interested. As for the overheating of the fets, im testing the controller in a chassis with 18v drill motors overvolted to 30v, and the fets are cold to the touch after 20mins of hard driving, with no heatsink currently installed, so i dont think overheating is an issue.
BTW i now see why so many ppl use gyros =)
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Wed Dec 23, 2009 11:01 pm |
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