1.效率更高：脉宽调制信号不直接与电机相连，也不驱动电机。相反，它利用

1. higher efficiency: pulse width modulated signal is not directly connected to the motor, the motor is not driven. Instead, it uses a very weak current to affect the state of the MOSFET, thereby controlling the current is relatively strong movement of the motor. Since most little current through the motor, and the control resistor network compared with other resistances, so the PWM control is very efficient. In addition, without changing the voltage of the motor, it can reduce the huge power consumption. <br><br><br><br>2. Stall Low risk: VVS to control the speed of the motor by changing the voltage on the motor, the PWM is achieved by varying the duty cycle instead of voltage. In VVS control, since the torque loss due to low current, when the rotational speed is low, the motor may stall. However, in the PWM control, the motor <br><br>to change speed in the case of a constant torque. By varying the duty cycle, you can achieve the highest quality speed control, and torque while maintaining process efficiency. <br><br><br><br>three. Balancing easier and more economical: the balance wheel using pulse width modulation control, we only need to rotate the potentiometer knob, to vary the duty cycle and observed by eye. However, if you want to use VVS, we need painful calculations to determine the resistance values on each side, and a complicated circuit assembly. More painful is that if things go wrong, we will need to re-do all the calculations.

1. More efficient: the pulse width modulation signal is not directly connected to the motor and does not drive the motor. Instead, it uses very weak currents to affect the state of MOSFET, thus controlling the motion of a motor with a relatively strong current. Since most current passes through the motor and there are few other resistors compared to resistance network control, THE PWM control is very efficient. In addition, there is no need to change the voltage of the motor, which can reduce significant power consumption.<br><br>2。 Low stall risk: VVS controls the speed of the motor by changing the voltage on the motor, while the PWM is achieved by changing the duty cycle rather than the voltage. Under VVS control, the motor may stall when the speed is low due to torque loss due to low current. But under the control of the PWM, the motor<br><br>Change the speed with the torque constant. By changing the duty-off ratio, you can achieve the highest quality speed control while maintaining torque and efficiency.<br><br>Three. Easier and more economical balance: The balance wheel uses pulse width modulation control, and we just need to rotate the potometer on the knob to change the duty-off ratio and observe through the eyes. However, if vVS is to be used, we need to make painful calculations to determine the resistance values on each side and assemble complex circuits. What's more, if something goes wrong, we'll need to do all the calculations again.

1. Higher efficiency: PWM signal is not directly connected to the motor, nor drives the motor. On the contrary, it uses very weak current to affect the state of MOSFET, so as to control the movement of motor with relatively strong current. Because most of the current flows through the motor and there is almost no other resistance compared with resistance network control, the efficiency of PWM control is very high. In addition, without changing the voltage of the motor, it can reduce the huge power consumption.<br>2. Low stall risk: VVS controls the speed of the motor by changing the voltage on the motor, while PWM is achieved by changing the duty cycle rather than the voltage. Under VVS control, due to the torque loss caused by low current, when the speed is low, the motor may stall. But under PWM control, the motor<br>Change the speed with constant torque. By changing the duty cycle, you can achieve the highest quality speed control while maintaining torque and efficiency in the process.<br>Three. Easier and more economical balance: the balanced wheel uses PWM control, we only need to turn the potentiometer on the knob to change the duty cycle and observe through the eyes. However, if we want to use VVS, we need to do painful calculation to determine the resistance value of each side and assemble complex circuits. What's more painful is that if something goes wrong, we will need to do all the calculations again.<br>