A GaN-Based Synchronous Buck Converter for High Power Laser Diode Drive Applications

Year 2018, , 62 - 68, 15.02.2018

Abdulkerim Uğur Murat Yılmaz

https://doi.org/10.17694/bajece.402018

Cited By: 2

Abstract

Laser Diodes are the essential
components for development of high power laser systems. To operate these
devices, highly efficient and high power density, compact, current regulated
switching converters are necessary. In this paper, Gallium Nitride (GaN) based synchronous
buck converters are studied for the application of laser diode driver. For this
purpose, two synchronous buck converters one with Si-based the other one with
GaN-based are designed, simulated, tested and compared. With the application of
GaN-based semiconductors, 96.6% efficiency and 9.1 W/cm³ power
density is achieved for 11A, 28V load at 700 kHz operating frequency. 

Keywords

High power laser diode, Synchronous buck converter, GaN Transistor, power density, efficiency

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