--- In LTspice@..., Tan Micheline Tambayong <micheline.tambayong@...> wrote:
Does anyone know what its means when LTspice give error:
"Singular matrix: check node n002
Iteration No. 1"
The circuit is made by AC voltage source, resistor (series with the voltage
source), bridge rectifier, capacitor, resistor paralleled with the capacitor
as a load at the output, and ground. The circuit is plotting and simulating
just fine for small value of capacitor. But when I increase the capacitor
value above 16uF, LTspice give the above error. But for some capacitor
values (eg. 20uF) it's fine again, and when I increase it again (eg.21uF),
it gives error again. So LTspice gives error for most of capacitor value
above 16uF but not all.. Also, for some value, it simulating but then the
plot stops in the middle. The value of the capacitor that gives an ok plot
and error are randoms (no pattern). So does anyone know, what's the reason
that the LTspice behaves like this?
Thanks in advance..
Kind regards,
Micheline
Hello Micheline,
This error message simply means that LTspice couldn't solve
the matrix. Maybe your circuit has an open nets.
Please upload your circuit to this group for a test to the
following location.
Files > Temp > yourcircuit.asc
Best regards,
Helmut
