【摘要】 本文分析了光电耦合器的工作特性及其对模拟信号传递精度的影响,提出了一种传递精度较高的按差动原理构成的模拟信号传递电路,并给出了该电路作为电流检测装置在交流调速系统中的应用结果。更多还原

【Abstract】 This paper analyses the performances of photo-coupler and its affection on the transmission accuracy of analog signal and presents a high accuracy analog signal transmission circuit based on the differential principle. The circuit is used detect as a current device in AC adjustable speed system and itsapplication results are given.更多还原