本文主要讨论由 DSP 为核心构建的磁悬浮系统，并详细分析控制系统的两个关键要素：主控器和悬浮驱动器。在设计中，这两部分我们分别采用数字处理芯片TMS320LV5402 和两象限桥式悬浮斩波器。最后分析了具体数字实现中应注意的问题。关键词：悬浮系统，DSP，TMS320LV5402，两相限桥式斩波器。Abstract: Suspension System centered on DSP is discussed in this paper. It also analizes two key factors of the control system-the main controller and the suspension drivers. Digital signal processor chip TMS320LV5402 and two-quadrant bridge suspension chopper are applied to this system,respectively. At last,the paper analizes the problems worthy of consideration in digital implement.Key Words: Suspension System , DSP，TMS320LV5402，two-quadrant bridge chopper