Scooter Electric Propulsion System

The Texas Instruments OPA2836-Q1 is a is high-speed, ultralow-power operational amplifier. It was integrated into an electric scooter and fault testing was conducted to show the capabilities of the device. A customized circuit board and circuit board housing were created to run the scooter using InstaSpin software and to feature the operational amplifier. A customized graphical user interface was created to display the current in real time. Testing was conducted on the scooter system for two faults that can be caused by the user: an over-current electrical fault in which the current exceeds the motor’s limit, and a mechanical fault in which a brake is applied to the wheel with the motor still running, which also causes an over-current on the motor. The high-speed operational amplifier detected and shut down the current within 1 microsecond of the overcurrent occurring, demonstrating the operational amplifier’s ability.