lord loh.
Member
What happens if two different EMFs are connected parallel.
My teachers told me that the lower of the two EMFs appear at the output of the setup.
However, SPICE simulation got me unexpected results. The output was a value between the two EMFs. A series resistance is must for simulations.
I used the internal series resistance of a 1nano ohm.
When I varied the series resistance, the results changed drastically.
emf1=5v
emf2=20v
1. I kept both internal resistance at 1n ohm the output was ~12v
2. When the internal resistance of EMF1 was made zero, the output was 5v
3. When the internal resistance of EMF2 was made zero, the output was 20v
both cannot be made zero for simulation.
What ought to happens in the ideal case? and what shall I get in a practical case?
Attached is a swCAD file.
My teachers told me that the lower of the two EMFs appear at the output of the setup.
However, SPICE simulation got me unexpected results. The output was a value between the two EMFs. A series resistance is must for simulations.
I used the internal series resistance of a 1nano ohm.
When I varied the series resistance, the results changed drastically.
emf1=5v
emf2=20v
1. I kept both internal resistance at 1n ohm the output was ~12v
2. When the internal resistance of EMF1 was made zero, the output was 5v
3. When the internal resistance of EMF2 was made zero, the output was 20v
both cannot be made zero for simulation.
What ought to happens in the ideal case? and what shall I get in a practical case?
Attached is a swCAD file.