Design and Optimization of a GaN-Based High-Voltage Waveform Generator for Industrial and Biomedical Applications

Abstract:
Arbitrary waveform generators are required for multiple load characterization and excitation in a wide variety of industrial and biomedical applications. In the past, these generators have been typically limited in voltage/current/frequency due mainly to limitations of the power devices and topologies. However, advances in semiconductor technology have enabled the design of high-performance versatile waveform generators with improved operational ranges. This paper deals with the design, optimization and experimental validation of a 2000-V versatile large-signal high-frequency arbitrary waveform generator taking advantage of GaN devices switching at the MHz range. Several alternatives are studied, and the proposed system has been designed and implemented, proving the feasibility of this proposal.