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文章在理论和实验的基础上 ,对光电耦合器的电流传输比衰变的原因进行了全面的分析 ,并建立了数学模型 ,为可靠地应用光电耦合器件提供了工程设计的依据。
Based on the theory and experiment, the article analyzes the reason of the current transmission ratio decay of the optocoupler comprehensively, establishes the mathematical model and provides the engineering basis for the reliable application of the opto-electronic coupling device.