Principle of China 12 volt dc motor Pulse Width Modulator
Previously, some principles of DC motors and common troubleshooting and solutions, as well as various related to DC motors have been known, but the principle of pulse width modulators for DC motors has not been known, the following is Shenzhen Longhui Motor Introduction to the principle of a pulse width modulator for DC motors:
The principle of the pulse width modulator of a DC motor is to lock the six drive outputs due to overcurrent or fault conditions. Under normal conditions, the error amplifier output is compared with the oscillator output sawtooth signal to generate a pulse width modulation (PWM) signal. , control three lower side drive outputs.
The role of the pulse width modulator of a DC motor: changing the output pulse width is equivalent to changing the average voltage supplied to the motor windings to control its speed and torque.
