一种矩阵开关MA模块的设计

Design of MA module in matrix switch

介绍了一种矩阵开关MA模块,详细阐述了M/MA接口及驱动电路的设计思想,并使用FPGA完成M/MA接口的时序设计和继电器开关的控制逻辑,同时采用HL和LL双层软件架构实现模块的驱动程序。测试结果表明,模块可稳定工作在四种模式下,能够完成开关连续快速动作,并可对单个开关切换次数进行记录,保证了信号实时可靠的切换。

A MA module of matrix switch and its interface and driver circuits are introduced. FPGA is used to finish the timing of M/MA interface and the logic control of relay switch,while HL and LL d-layer software architecture are used to implement the drive program for MA module. The test result shows that the module can work stably in four modes, not only switch continuously and rapidly but store the frequency of switching action, which ensures the signal can be switched reliably in real time.