More controller info

Here are a few more pictures of the controller board. The small board with the voltage regulator on it was taken off the main board so I could diagnose a problem with the controller. One of the position sensor wires from the motor became de-soldered where I spliced the wire, and in diagnosing the problem and giving the single winding full power (since the controller assumed the motor was at a single position, so it never changed windings - a flaw in the design I think), I blew up a mosfet. At first I thought that just one mosfet was blown (it had a chunk missing from it), but in the end, both mosfets controlling the + and - ends of the winding had blown. I only realized this after the mosfet I replaced immediately blew again, so that's when I took the voltage regulator board off the main board to look at what every chip on the board was doing...

The other small board is from the thumb throttle. Somehow in fixing the position sensor wire I also blew up the hall effect sensor. Luckily IC's are cheap!

Showing components under voltage regulator:





15V regulator





Throttle board