What is an Electronic Speed Controller and How Does it Work?
Learn about Electronic Speed Controllers (ESC), their function, components, and protocols, and how to select the right ESC for drones and brushless mo
What is an Electronic Speed Controller and How Does it Work? What is an Electronic Speed Controller? The electronic speed controller (ESC) stands as a pivotal component within the hardware of an electric propulsion system. Serving as the system's neural hub, the ESC conveys instructions to the motor, dictating its speed based on data signals it receives from the throttle controller. For smaller applications such as drones and RC vehicles, this hardware is referred to as an 'ESC.' However, in larger manufacturing contexts, it might be known as an electronic control unit, inverter, or motor controller. This article explores the fundamentals of how ESCs operate, the protocols they employ, and their applications in controlling brushless motors and drones. How Does it Work? The ESC's primary function is to mediate between the battery and the electric motor, governing the motor's rotation by sending precisely timed electric signals. These signals are transformed into changes in speed. The ESC utilizes direct current from the battery …
About the author
Prasun Barua is a graduate engineer in Electrical and Electronic Engineering with a passion for simplifying complex technical concepts for learners and professionals alike. He has authored numerous highly regarded books covering a wide range of elec…
