SYSTEMS AND METHODS TO BALANCE FLYING CAPACITORS IN HIGH POWER MULTI-LEVEL BUCK OR BOOST CONVERTERS FOR RENEWABLE AND SOLAR MAXIMUM POWER POINT TRACKING (MPPT) INVERTER APPLICATIONS
DRIVE
March 12, 2026
Apparatuses, systems, and methods to balance flying capacitors in high power multi-level buck or boost converters for renewable and solar maximum power point tracking (MPPT) inverter applications are provided. An exemplary method includes initializing at least a multi-level converter circuitry and an isolated secondary converter circuitry, wherein the multi-level converter circuitry includes at least a flying capacitor, and wherein the isolated secondary converter circuitry is configured to charge the flying capacitor in accordance with a default operation state in response to initialization; determining that a voltage across the flying capacitor satisfies a threshold; and causing the isolated secondary converter circuitry to switch from the default operation state to an inactive state based at least in part on the voltage satisfying the threshold.
Discussion in the ATmosphere