I am trying to design a circuit but am having some trouble. My knowledge of electronics is somewhat limited, but I have taken a couple of Intro courses during my bioengineering coursework and done some work in building power supplies. I will describe the circuits inputs and desired outputs.
I have a sensor which returns 0-10 V or 4-20 mA (prefer working with Volatge-controlled stuff since that all I've ever really worked with).... and I want to have a cycle timer run one cycle upon having a threshold voltage being input, lets say 4V. I want the timer to complete its cycle regardless of the change in the input. It will generally drop based on the actions of my system, but it won't always... and I want it to be able to handle the condition where the input stays constant or even rises.
I've read about multistable, monostable, and bistable vibrators... relays... triggers... but can't seem to find the perfect combination to handle this. A lot of these systems want to have inputs as impulses... but I have this time-varying waveform which could potentially be anywhere and send multiple triggers which is not what I want. Ideally, once the threshold is reached the cycle will run unstopped... and only upon completing its full cycle will it respond to another input.
I figured this was a decent place to post to help solve this problem?
Thank you for your time.
I have a sensor which returns 0-10 V or 4-20 mA (prefer working with Volatge-controlled stuff since that all I've ever really worked with).... and I want to have a cycle timer run one cycle upon having a threshold voltage being input, lets say 4V. I want the timer to complete its cycle regardless of the change in the input. It will generally drop based on the actions of my system, but it won't always... and I want it to be able to handle the condition where the input stays constant or even rises.
I've read about multistable, monostable, and bistable vibrators... relays... triggers... but can't seem to find the perfect combination to handle this. A lot of these systems want to have inputs as impulses... but I have this time-varying waveform which could potentially be anywhere and send multiple triggers which is not what I want. Ideally, once the threshold is reached the cycle will run unstopped... and only upon completing its full cycle will it respond to another input.
I figured this was a decent place to post to help solve this problem?
Thank you for your time.
Attachments
-
30.4 KB Views: 23