Teng Fei takes you to explain electromodulation in detail

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

Introduction to the

For their connection, the general case looks like this:

1. The input line of the electric adjustment is connected with the battery;

2, the output line of electric adjustment (brush two, brushless three) is connected with the motor;

3. The signal line of electric modulation is connected with the receiver.

In addition, the electric modulation generally has the power output function, that is, between the positive and negative poles of the signal line, there is about 5V voltage output, through the signal line to power the receiver, and then the receiver to power the steering gear and other control equipment.

It is no problem to power three or four steering engines with the output of electric modulation. Therefore, electric aircraft, generally do not need to power the receiver alone, unless there are many steering gear or high requirements for receiver power.

The development of

With the development of brushless motor, brushless electromodulation occupies the mainstream of the market. There are also many kinds of brushless electronic governor brands on the market. Not every type of brushless electromodulation can be matched with the motor, mainly related to the power of electromodulation. If the power is not enough, it will cause the power tube above the electrical control to burn out, so that the telephone control can not work. Therefore, the choice of electric adjustment must be based on the power of the electric adjustment, and the compatibility of the electric adjustment and the motor. Electromodulation is not compatible with all motors, it must be selected according to the power of the motor and other parameters. But the actual situation is that many brands of electric adjustment is not full power full current, maybe you need 60A electric adjustment, it can only run to 55A can not be raised again, so when choosing electric adjustment, we must ask the supplier whether full power.

The electrical input is DC, which can be connected to a regulated power supply or lithium battery. The general power supply is about 2-6 lithium batteries. The output is three-phase pulsating DC, directly connected to the motor's three-phase input terminal. If your motor reverses after powering on, all you need to do is switch any two of these three wires. There is also a signal line connected to the electric modulation, used to connect with the receiver, control the operation of the motor, the connection of the signal line to the ground.


The main application of electric adjustment is model airplane, model car, model boat, flying saucer, frisbee and other toy models. These models drive the motor to complete various instructions through electrical modulation, and imitate its real work function to achieve the effect similar to the real situation. So there are specially designed for the aircraft model electric adjustment, car model electric adjustment and so on. The effect of electric adjustment is to control the motor and complete the specified speed and action. Therefore, electric adjustment also has a very broad application in production and life, such as electric adjustment on power tools, electric adjustment on medical equipment, electric adjustment on automobile turbines, special electric adjustment for special fans, and so on. Some electromodulation manufacturers will tailor your electromodulation according to your different needs and motor parameters.