Non-isolated resonant link DC–DC converter for use with GaN devices

Abstract

As new wide band-gap (WBG) devices are developed and improved, new topologies and control schemes are required to take advantage of the ultra-fast switching turn on/off speeds that are now available, without the limitations of switching losses and unacceptable EMI from fast switching transitions. This paper presents a non-isolated DC–DC resonant link converter that allows for soft switching over an extended load range that is particularly suited to GaN devices.

Keywords

• switching convertors
• resonant power convertors
• DC-DC power convertors
• gallium compounds
• wide band gap semiconductors
• wide band-gap devices
• control schemes
• DC–DC resonant link converter
• soft switching
• gallium nitride devices
• nonisolated resonant link DC–DC converter
• WBG devices
• ultra-fast switching turn on/off speeds
• switching losses
• unacceptable EMI
• fast switching transitions
• GaN