轻载条件下防止LLC谐振半桥变换器产生可听噪声的关断时间控制

This paper presents a control method that can prevent audible noise generation in an LLC resonant half-bridge dc-dc converter under a light-load condition, while achieving the same input voltage range and power-conversion efficiency ηe as the burst-control method that generates an audible noise. The proposed method reduces switching and conduction losses at light load by skipping several pairs of ...