A Three-Level (Multi-Level) Buck DC-DC Converter

Low Temperature Operation of A Three-Level Buck DC-DC Converter

Application Area

1. The three-level besides multi-level power conversion topology is used for high voltage applications.

Features

1. Switches are turned on and off at different times, which allowes high voltage conversion with standard $\frac{dv}{dt}$ .
2. Switches can be operated with significant phase shift to improve the harmonic spectrum of the converter, which means, I do think, it can be used with Two-Phase Converter.
3. Used for flyback converter

Structure & Control Waveform & Current Transition

As written above, the gate control waveform has phase shift, so the waveform is showed below.

The functions are similar to the past passage, Two Phase Buck Converter with Series Capacitor