hi friends,
i want to convert 1-10 vdc input signal to 4-20 mA output signal.Do anyone have the circuit for this.i have seen the ckt to convert 1-5 vdc input signal to 4-20 mA output signal.
Any response would be appreciated.

 

By examining the input resistors, it should be simple to make a scale change and use that circuit for your purpose. Or leave that unchanged and simply reduce your signal voltage by one half.

 

Here is a simple circuit:

http://www.allaboutcircuits.com/vol_3/chpt_8/7.html

 

A voltage follower is ideal for this.

eric