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This paper presents a 5-level Flying Capacitor Multi-Level (FCML) converter with an integrated auxiliary power converter to supply power to the controller and gate drive circuitry. The auxiliary power converter is sourced from within the FCML converter at a naturally occurring low voltage node, reducing the voltage rating requirements by 75% and thus the size of the auxiliary converter. The auxiliary...
Single-phase inverters and rectifiers require the use of an energy buffer to absorb the twice-line-frequency power ripple present on the AC side. Historically this challenge has been addressed by the use of large electrolytic capacitors. However reliability constraints and the need for improved system performance have motivated designers to seek other capacitor technologies such as ceramic and metal...
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