Warning: Singular matrix. Check nodes...Fatal error: Timestep too small(1.25e-19) at t=0

Cornel · March 13, 2024, 4:55pm

Hi,

KSKelvin · March 13, 2024, 5:03pm

output window give all necessary information for you, you have floating nodes.
add a huge resistance of these nodes to GND to resolve this problem.
tes.qsch (30.7 KB)

jay314159265 · March 13, 2024, 5:05pm

Nice DAB, I was having trouble with the transformer L=INF, maybe try setting to L=<something != inf>