Power Factor Correction controlled by DSP and its Matlab simulation

Nowadays, PFC (Power Factor Correction) inverters used in many fields play an important role in life. They are used in many applications. Digital Signal Processors (DSPs) designed for closed loop control implementations have been extensively used in areas of motor control, uninterruptible power supplies (UPS) and motion control applications. Based on the software of Matlab and the powerful operation function of the DSP chip, this paper makes an improvement in the PI control from analog to digital for a switch power supply system. The result of the experiment shows that this technique makes the switch power supply have effective control, good, dynamic and steady performance, improving the reliability of the equipment and the flexibility of the user.