Hello! I want to design a circuit that can detect a fluctuating voltage signal. The specific function I want to realize is described as follow:
As shown in the figure below, I want to output a high voltage when the peak value (in the blue circle) of the signal (the red line) is lower than a threshold. For example, when the peak value in the blue circle is lower than 0.05V, a component, like the voltage compartor will output high. I hope the circuit realization is as simple as possible.
Do anyone have a good idea to achieve that? Thanks.
As shown in the figure below, I want to output a high voltage when the peak value (in the blue circle) of the signal (the red line) is lower than a threshold. For example, when the peak value in the blue circle is lower than 0.05V, a component, like the voltage compartor will output high. I hope the circuit realization is as simple as possible.
Do anyone have a good idea to achieve that? Thanks.