06-20-2013 03:28 AM
Hi guys, great website and thanks for always being available
I have a slightly advanced problem that I'm looking for a hand with.I'm working with multisim as a researcher and I'm interested in simulating the discharging of a parasitic capacitor through a diode equivalent under a triangular input input: a +ve to -ve sweep, capacitor is charged according to it's RC and polarised and the reverse -ve to +ve sweep (polarised capacitor is discharging, charge migrates through circuit via path of least resistance, this current should be detectable via a current probe and once discharged polarises in the opposing polarity, potentially a different RC for this regime).
I have attached the simulation I am working with but no discharge is observable through this circuit- i would expect a non-zero current
Could somebody poke me in the right direction in being able to observe/simulate/monitor this dischage?
06-25-2013 10:33 AM - edited 06-25-2013 10:33 AM
Is this what you are looking for? I am using the Oscilloscope to visualize the waveforms and I adjusted the C value and the time scale to show the simulation. You had a frequency selected in the mHz (milliHertz) range - don't know if this was intentional, but you would have waited a long time to see the behavior.
- Pat Noonan
National Instruments