Hello everybody, I'm trying to make a (resistor / ma) specially 4-20ma
you can find the circuit in this site
, I understood a lot if details in this circuit except those things >>>
1- what is the purpose of D1 ?
2- the diode is in parallel with Rsense ,,, i think it will limit the Rsense Voltage to 0.7 ? Am I right ? and if that ,,, how could the resistance Rsence be a voltage sensing element in the cuircuit ?
3-what is the purpose of C1 ? ( dose it for absorb the sudden changing in U1A output (U1B input) values , and make the change in U1B output values be smoothly !! I don't know !!
please Help !
thanks in advanced
you can find the circuit in this site
, I understood a lot if details in this circuit except those things >>>
1- what is the purpose of D1 ?
2- the diode is in parallel with Rsense ,,, i think it will limit the Rsense Voltage to 0.7 ? Am I right ? and if that ,,, how could the resistance Rsence be a voltage sensing element in the cuircuit ?
3-what is the purpose of C1 ? ( dose it for absorb the sudden changing in U1A output (U1B input) values , and make the change in U1B output values be smoothly !! I don't know !!
please Help !
thanks in advanced