25 Jul '17
Power is nothing without CONTROLLERS
Posted by Tora Harris in crosscurrent S
The E-bike has 3 main parts. The battery, the controller and the motor:
The controller is basically used to send the battery's power to the motor in a controlled way. It also acts as the "brain" for the e-bike similar to a car's ECU.
Inside the controller are little transistors and some other parts. Those transistors are like little pumps that send power to the motor and warm up as they get used.
Image of a typical transistor source: www.adafruit.com
At some power level they get too hot and can easily stop working. To keep them from overheating you can do a few basic things:
Reduced the power (nobody wants to do that!)
Blow air or run liquid over the controller or add cooling fins etc.
Use more efficient transistors.
Add more transistors!