hjns wrote:the first time you can ride that controller!!
Arlo1 wrote:For those of you waiting on the edge of your seat. I have about 3 hours of working on this since I got my chips from lebowski. I have bit to many things on the go. This is my own personal top priority but the girlfriend and the drag race hi and work and business come first. So soon but this is to everyone out there. DONT THINK POURLY OF THIS BECAUSE NO ONE HAS IT WORKING YET WE ARE JUST BUISY PEOPLE! I am sure this is going to be amazing!
Lebowski wrote:At the moment I'm finishing my bike build (maybe this coming 4-day weekend ), after that
I want to make a 16x10 cm PCB containing a full 6 FET (hopefully TO247) controller
(including 100V or 150V to 18V/5V supply, controller IC, proper gate drivers and output stage).
For a 1 motor bicycle you then only need to connect analog throttle, the battery, the
3 motor wires and optionally the 5 hall sensor wires.
I think a PCB will make it very easy for everyone to build a controller. Just order the parts
from digikey (I will try to make a parts list), solder everything to the PCB, setup the controller
IC with your laptop and your vector based, sinewave out with automatic timing compensation
controller is done !
If the 6 FET proves itself I'll do a 12 FET or more version if there's a demand for it.
Lebowski wrote:Or, you know, I'm
scared to think what would happen if this 30 kg (65 pounds) piece of metal
is spinning at high rpm and breaks lose of it's two tiny 6mm mounting bolts...
Arlo1 wrote:What transistors would you sugest? I have 2n3904, 2n3906, 2n5061, and n43al lm293 iaz-5 (think its called a lm 293) in stock Would any of those 4 work?
Lebowski wrote:The next step for my controller is to make a PCB containing everything, I think once that's done it's
at a stage where a soldering iron and multimeter should be enough . At that point it's just a matter
of ordering a list of parts from Digikey, solder everything in the right place and set it up with a PC.
No clue though how long designing the PCB will take, never done that before (I've drawn 40nm IC layouts
though but it's not the same ). I guess learning the PCB tool will be the hard part.
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