基于CPLD的智能固态转换开关的研制

Development on the Intelligent Solid-State Transfer Switch Based on CPLD

提出了一种适用于铁路信号供电电源的智能固态转换开关方案。以CPLD为核心,功率MOSFET作为主控器件,实现转换操作的无触点切换。介绍了主电路、控制电路的硬件设计及软件编程。实际应用表明方案可靠实用,能够提高供电的自动化水平。

A scheme of an economical intelligent solid-state automatic transfer switch was presented to apply in the railroad signal power supply. It adopted CPLD as the control core and power MOSFETs as main control components and could operate without con- tacts. The hardware design of main circuit and control circuit and software programming were introduced. The practical application proved its suitability, and enhancement of reliability and automation level.