As engineers within the design community read and learn about new products and topologies, they become sceptical about the promises for improved operating characteristics. The promise of a step-function improvement with GaN in audio systems could be classified as one of these scenarios. However, with the GaN Systems Stereo Class-D Amplifier system solution, the audio industry is pleasantly surprised to see that GaN is keeping its promise.
This white paper explores the GaN Systems solution consisting of a GaN FET-based LLC SMPS with PFC and Stereo 200W/8-ohm Class-D Amplifier. The SMPS uses the GaN Systems GS66506T for both PFC Front-End and LLC Half-Bridge Back-End and the GaN Systems GS61008P for each of the four Half-Bridge Output Stages of the Class-D Amplifier.