I would like to know whether this circuit can be used to increase the output voltage across the capacitor by momentarily connecting the base of the PNP to the -3V terminal. I'm unsure how to calculate the current through the transistor when it saturates, if it has negligible resistance when turned on does that not mean a large current will flood through and exceed the the collector current rating. Do I need a current limiting resistor? I would like to know what the OP-AMP is trying to do when the inverting input is connected to the 10V.
cheers
cheers