An electronic speed controller, often known as an ESC, is a device that is utilized to control the
- Speed,
- Direction, And
- Braking
of a direct current (DC) motor.
It does this by regulating the power supply to the motor as it receives input signals, which typically come from a remote control (or) a microcontroller. The ESC is responsible for regulating the voltage & current that are supplied to the motor, which enables precise control over the operation of the motor. ESCs typically offer a variety of characteristics, including
- Soft start,
- Over-current protection, &
- Thermal protection,
in addition to speed control.
These features contribute to an improvement in the motor’s performance and also extend its lifespan.