droseman
Junior Member level 3
Hello,
I am attempting to simulate a flyback power supply using LTSpice, I am using coupled inductors to simulate the transformer and a series diode and capacitor across the secondary to remove high voltage spikes.
I am doing a transient analysis .tran 0 100u 0.1u, but when I add the diode on the secondary, I get Analysis: time step too small, and only around 6us of the 100 us span gets simulated. When I remove the diode, I get the whole 100us span.
What could be the issue with this diode which halts the simulation?
NB I can't post netlist or schematic, but it is a fairly conventional flyback converter.
Thanks
Dave
I am attempting to simulate a flyback power supply using LTSpice, I am using coupled inductors to simulate the transformer and a series diode and capacitor across the secondary to remove high voltage spikes.
I am doing a transient analysis .tran 0 100u 0.1u, but when I add the diode on the secondary, I get Analysis: time step too small, and only around 6us of the 100 us span gets simulated. When I remove the diode, I get the whole 100us span.
What could be the issue with this diode which halts the simulation?
NB I can't post netlist or schematic, but it is a fairly conventional flyback converter.
Thanks
Dave