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Development and Application of Electronic Governor

Time: 2022-08-11    Author: HAIKE    Look: 234

ESC, the full name of electronic governor, English Electronic Speed Control, referred to as ESC. According to different motors, it can be divided into brush ESC and brushless ESC. It adjusts the speed of the motor according to the control signal.

For their connection, the general case is like this:

1. The input line of the ESC is connected to the battery;

2. The output wires of the ESC (two with brushes and three without brushes) are connected to the motor;

3. Connect the signal line of the ESC 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, which supplies power to the receiver through the signal line, and the receiver supplies power to control equipment such as steering gear.

It is no problem for the output of the ESC to power three or four servos. Therefore, electric aircraft generally do not need to supply power to the receiver separately, unless there are many steering gears or high requirements on the power supply of the receiver.


With the vigorous development of brushless motors, brushless ESCs have occupied the mainstream of the market. There are also many types of brushless electronic governor brands on the market. Not every brushless ESC can match the motor, mainly related to the power of the ESC. If an ESC with insufficient power is used, the power tube on the ESC will be burned out, so that the ESC cannot work. Therefore, the choice of ESC must depend on the power of the ESC, and the compatibility between the ESC and the motor. The ESC is not compatible with all motors, it must be selected according to parameters such as the power of the motor. But the actual situation is that many brands of ESCs do not have enough power and current. Maybe you need a 60A ESC. In fact, it can only run to 55A and can’t go up any more. So when choosing an ESC, be sure to ask the supplier. Whether the power is sufficient.

The ESC input is DC, which can be connected to a regulated power supply or a lithium battery. The general power supply is about 2-6 lithium batteries. The output is a three-phase pulsating DC, which is directly connected to the three-phase input of the motor. If your motor is reversed after power on, you only need to switch any two of the three wires in the middle. There is also a signal line connected to the ESC, which is used to connect with the receiver, control the operation of the motor, and connect the signal line to a common ground.


The main application of ESC is on toy models such as aircraft models, car models, ship models, flying saucers, frisbees and so on. These models drive the motor to complete various commands through ESC, imitating its real working function, so as to achieve the effect similar to the real situation. Therefore, there are aircraft model ESCs specially designed for aircraft models, car model ESCs designed for car models, and so on. The function of the ESC is to control the motor to complete the specified speed and action. Therefore, ESCs also have a wide range of applications in production and life, such as ESCs on power tools, ESCs on medical equipment, ESCs on automotive turbines, special ESCs for special fans, and so on. Some ESC manufacturers will customize the ESC for you according to your different needs and motor parameters.

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