A strange result of simulating a simple circuit

[bordodynov]

I made a simulation of the simplest scheme in the ancient EWB 5.12 to compromise the program. This is from a discussion about the possibility of obtaining Free Energy. A circuit was created in this old program and an influx of energy was received. I recalculated the scheme in Qspice and got nothing unusual. To which he received the answer that the enemies had specially made such a program in order to hack the perpetual motion machine project. And then there’s the super amp project, which amplifies pico volts. I counted the input noise at about 3 uv. That’s why I started hacking EWB. I made a netlist and calculated the scheme in Qspice, and what was my surprise when I saw the hell in it. Here is the result:

1N4001.qsch (6.2 KB)

[test4piru]

[bordodynov]

Thank you very much. I had increased accuracy. With the standard one, everything is fine. But the question arises: why is it bad with increased accuracy?

[KSKelvin]

use .option fastmath=0 to force simulation to run with QSPICE80.exe higher precision math.
Reading I(D2), current in this simulation setup is in kA level (physically impossible). Here compare the result with reducing relative error tolerance (.option reltol).
So, possibly kA vs V ratio may have something to do with your observation.