DC step down motor controller

We want to make controllers to run dc motors on electric bikes etc.

We aim to use recycled components. We will use parts from:

UPS inverter.

 

 

Some documents will be saved in the google-drive: https://drive.google.com/open?id=0B3S1zNMghYeZVzNEbG1iMVZRNjQ

 

Project start: 
July, 2016