hi I didn't studies all the circuit configurations and also I'm a newbie to EE. My question is I need to design something like a voltage holder.
The idea is two emitter followers. One is NPN one and other is PNP one and it will balance the threshold voltage across junctions. Circuit diagram looks like this.
The functional requirement is that when I press the 5V switch , the outuput voltage should go to 5V and hold it 5V no matter I released the switch. And when I give a 2V pluse , it should again come back to 2V.
The problem is, circuit simulator does not output it's expected functionality. Any reasons why is that? It came back to OV, and sometimes it give me a convergent error.Any workaround on this?
--Thanks in Advance--