GaN Based Switched Capacitor Three-Level Buck Converter with Cascaded Synchronous Bootstrap Gate Drive Scheme

Asymmetric slope compensation for digital hybrid current mode control of a three-level flying capacitor buck converter

“…As can be seen from Figure 1, there are 3 floating switches and therefore isolated gate drivers and gate power supplies are necessary. Although several methods have been presented previously [24,25] to eliminate isolated power supply for gate voltage generation, the traditional method is used in the present study. To reduce the space on the board, an Analog Devices ADuM5210, which includes an integrated isolated DC-DC converter, is used to provide 5 V for bootstrapping and the isolated gate signals for switches.…”

Optimization of DC-DC Power Supply Systems by Differential and Hybrid Power Processing

“…Hybrid converters are normally referred to as the topologies combining both capacitive and inductive components for power conversion. It has become a popular topic in recent years for the high power density and efficiency comparing to traditional converters that use only magnetic components for power conversion [8], [9], [73], [74], [10], [66]- [72].…”

“…Plotted versus gain. Data collected from SoA converters for datacenter application [9], [10], [91], [33], [72], [84], [86]- [90].…”

“…Multi-level flying capacitor (FCML) converters is originally proposed for high voltage applications using the capacitors to clamp the voltage on the power switches [97]. In recent years, they are being used also for low voltage applications [70], [72]. In FCML, the output voltage can be regulated between 0 and 𝑉 𝑖𝑛 .…”

“…To illustrate the actual performance achieved by the converters, data from state-of-the-art (SoA) literature and commercial products for data center application are collected and plotted in Fig. 1 [9], [10], [91], [33], [72], [84], [86]- [90]. [187]…”