can you hlp in designing this type of comparator

[revooridinesh]

Hi

I would like to design a comparator which gives output 1 if input voltage is greater then 3 or o if less then 3. how to design this

Thank You

 

[tusemo]

Do you have to use just basic circuit elements (resistor, capacitor, transistor), if not you can use lm331 or other lm series. Samples are included in the datasheets

 

[revooridinesh]

yaa only basic elements and including that we can use op-amps

 

[tusemo]

How about lm series ? they are easy to use.

 

[revooridinesh]

i am working on a project converting the human circulatory system to a circuit and simulating it. So for that I need to modify the valves which has the characteristic of above, and condition of this project is no using of IC's

 

[tusemo]

You should use bjt transitors or fet transistors, you can search on google sorry I cant remember electronic course very well