用模拟电路怎么设计？单片机可以用吗？

黄伟特9， 欢迎来到EasyEDA。 对不起，我不明白你的问题。 你能给出更多关于你想做什么的信息吗？ 你能在EasyEDA中画一个例子吗？ Hi Huangweitt9, Welcome to EasyEDA. I am sorry but I do not understand your question. Can you give some more information about what you are trying to do? Can you draw an example in EasyEDA?

@andyfierman 我有一个高度传感器，输出信号是-+5v的模拟信号，我的采集设备只能识别高低电平的开关量信号，想设计一个电路把模拟量转换为开关量

基本上，你可以使用比较器。 要使转换干净，您可能需要添加一些滞后。 要设计一个比较器电路做这个，你需要回答下面的问题。 1.您要切换的高低电平是什么？ 换句话说：什么输入电压代表逻辑低，什么输入电压代表逻辑高？ 2.信号源的电阻是多少？ 此外，输入电压的变化速度（频率，PRF，上升/下降时间）是多少？ 4.你的输出逻辑电平是多少（我想你想要0V和+ 5V）？ 5.你需要什么输出上升和下降时间？ 6.您有什么电源？ 下面是一个可能适用于您的应用程序的示例： https://easyeda.com/andyfierman/Inverting_comparator_with_hysteresis-87a982dc29b24c1cb835e939a0659d70 Basically, you can do this with a comparator. To make the transitions clean you probably need to add some hysteresis. To design a comparator circuit do do this, you need to answer the questions below. 1. What are the high and low level voltages that you want to switch at? In other words: what input voltage represents a logic low and what input voltage represents a logic high? 2. What is the resistance of your signal source? 3. Also, what speed is the input voltage changing at (frequency, PRF, rise/fall times)? 4. What are your output logic levels (I think you wanted 0V and +5V)? 5. What output rise and fall times do you need? 6. What power supplies do you have available? Here is an example that may be OK for your application: https://easyeda.com/andyfierman/Inverting_comparator_with_hysteresis-87a982dc29b24c1cb835e939a0659d70