Hi,
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I'm afraid PSUD2 won't do common mode chokes due to the way the voltage sources work and PSUD3 doesn't have this on the roadmap either.
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If I was doing this, I'd probably model it in a SPICE simulator by having two coupled inductors with some leakage, but I've no idea how much leakage to dial in.
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Sorry, I know that isn't much help.
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Regards,
Duncan
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