[ZombieSS] wrote in to share the latest iteration of his new open hardware Brushless DC motor high power output stage posted on the Endless-sphere forums. The thread is a gold mine of useful information on designing, building and debugging high power electronics and the whole thing is worth reading. This includes the story of issues he faced with common mode noise picked up by the probe leads on his Rigol, which sidetracked the project for a while.
We’ve covered various ebike hacks before, but the guys at endless sphere appear to be developing a number of solid open hardware designs in this area. This includes the Lebowski controller which [ZombieSS] used in conjunction with his design.
He has installed the controller and output stage on his electric bike, and you can see one of the first test runs in the video below. We look forward to hearing more from the awesome hackers at Endless sphere!