September 10, 2019 Properly dimensioning the DC link capacitor for a three phase inverter seems to be a skill that evades a lot of power electronic engineers. When I ask people how they size their DC link capacitor, it’s usually based off some arbitrary rules-of-thumb or back-of-the-envelope calculations. I find that crazy, especially since the DC link capacitors can occupy 20-50% of the total i..

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