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详细阐述了 4× 4光开关矩阵的控制及驱动电路的设计。通过分析开关矩阵状态表、状态切换方法及磁保持驱动的特点 ,提出了几种控制驱动的设计方案 ,并讨论了各自的优缺点。最后给出利用打印机接口和通用阵列逻辑的具体实现方案。测试结果表明电路具有良好的性能。
Described in detail 4 × 4 optical switch matrix control and drive circuit design. By analyzing the characteristics of switch matrix state table, state switching method and magnetic retention drive, several design schemes of control drive are proposed and their respective advantages and disadvantages are discussed. Finally, the paper gives a concrete realization scheme of using printer interface and general array logic. The test results show that the circuit has good performance.