8.1 Introduction to ESC's

Front

What is an Electronic Speed Controller (ESC)?

Back

An ESC is a small electronic circuit used in R/C applications to control the speed of each motor.

Front

Can an ESC be an all-in-one design?

Back

Yes, an ESC can be an individual unit for each motor or an all-in-one design that contains all required ESCs in one package.

Front

How many ESCs does each motor on a multicopter get?

Back

Each motor on a multicopter gets one ESC, not two.

Front

What causes the motor to emit a low-pitched spinning sound?

Back

The rapid electronic 'on-and-off' switching of the internal transistors in the ESC causes the motor to emit its characteristic low-pitched spinning sound.

Front

What is a Battery Eliminator Circuit (BEC) in an ESC?

Back

A BEC is a feature in most ESCs that includes a 5V regulator to supply power to the flight controller and receiver from the same battery used to power the motor.

Front

What is the primary function of an ESC in R/C applications?

Back

The primary function of an ESC is to control the speed of the motor.

Front

What does the term 'throttle' refer to in the context of ESCs?

Back

Throttle refers to the control signal sent to the ESC to adjust the speed of the motor.

Front

What happens when the ESC receives a full throttle signal?

Back

When the ESC receives a full throttle signal, it allows maximum power to the motor, resulting in maximum speed.

Front

What is the significance of the voltage drop across the speed control in an ESC?

Back

In an ESC, there is no voltage drop across the speed control when it is fully on, allowing for efficient power delivery to the motor.

Front

How does an ESC communicate with the receiver?

Back

An ESC receives control information from the receiver to adjust the motor speed accordingly.