The thickest red and black wires on the ESC are used to connect the power battery.
The ESC, or Electronic Speed Controller, can be categorized into brushed and brushless ESCs depending on the motor. It regulates the speed of the motor according to the control signal.
For their connection, generally it is like this:
1, the input wire of ESC is connected to the battery;
2, the output wire of ESC (two brushes, three brushless) is connected to the motor;
3, the signal wire of ESC is connected to the receiver.
In addition, the ESC generally has a power output function, that is, between the positive and negative poles of the signal line, there is a voltage output of about 5V, through the signal line for the receiver power supply, the receiver and then for the servo and other control equipment power supply. It is no problem for the output of the ESC to power three to four servos. Therefore, airplanes that are electric generally don't need a separate power supply for the receiver.
Unless there are a lot of servos or there is a high demand for receiver power.
The ESC's most important application is aviation. The most important applications of ESCs are on model aircraft, model cars, model boats, flying saucers, frisbees and other toy models. These models through the ESC to drive the motor to complete a variety of commands, imitating the real work function, in order to achieve the effect similar to the real situation. Therefore, there are ESCs designed specifically for aeromodels.
Designed for the car model ESC and so on. The effect of the ESC is to control the motor, to complete the specified speed, action. So the ESC has a very wide range of applications in production life, such as power tools on the ESC, medical equipment on the ESC, automotive turbines on the ESC, special fan special ESC.