Hi, I was hoping someone can help me to solve my error on LTspice.
I am designing a three phase voltage sensor using voltage divider resitors and a isolated differential amplifier. The voltage range I need to measure is max 440V_rms. I want to add protection by adding a thermistor and MOVs.
I first tried to add movs (VDRH05E250 x2 in series), but it gave me an error: "Anaylsis: Timestep too small; initial timepoint:trouble with d_lim1-instance d:u:1:filter: output:d4:1". Any ideas what the problem might be?
I am designing a three phase voltage sensor using voltage divider resitors and a isolated differential amplifier. The voltage range I need to measure is max 440V_rms. I want to add protection by adding a thermistor and MOVs.
I first tried to add movs (VDRH05E250 x2 in series), but it gave me an error: "Anaylsis: Timestep too small; initial timepoint:trouble with d_lim1-instance d:u:1:filter: output:d4:1". Any ideas what the problem might be?
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