Research on Buck Converter Based on Digital Control

With the rapid development of modern power electronics, digital technology is playing an increasingly important role in buck converters. The traditional analog-integrated chip-controlled buck converter requires a large number of components and is too large to meet the needs of power conversion development. The rapid development of digital control technology has led to the development of intelligent and miniaturized power conversion devices. To meet the development needs of miniaturization, digitalization, and efficiency of buck converter, this paper designs and verifies a buck converter based on digital control through the study of digital pulse modulation, signal processing, and PID algorithm. The device is controlled using an integrated chip and can achieve a wide range input of 50 V–240 V, a digitally adjustable output of 12 V–36 V, and a maximum output power of 100 W.