Hi Felipe,
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I ran this circuit with the choke through LTSpice and it gives 323.2 Volts, quite close to the results you are getting from PSUD.
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PSUD might be getting confused by the very low value or R on the final RC filter (0.75 ohms) but other than that, the results look OK.
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When you say not enough power, what are you seeing from your real world circuit?
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Regards,
Duncan
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