Wide-Bandgap Semis

Current
MOSFET Selection and Efficiency Measurement for AI Server Power Supplies

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Figure 1a: Bridgeless totem-pole PFC

­Yole predicts AI data center server power ratings will jump from 15kW to over 100kW, and the main bus voltage will increase from 400V to 800V to reduce distribution losses. Despite this, rack space and PSU form factors will remain unchanged, pressuring PSU vendors to achieve higher power density. Yole forecasts th
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Date:
06/01/2025

The Benefits of GaN in Motor Drive/Inverter Designs

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Figure 1: Comparing power outputs for discrete and IPM MOSFET/IGBT and GaN solutions

­Although gallium nitride (GaN) has been discussed as an interesting solution for inverters and motor drives for ten years, there have been very few real applications of GaN in this sector to date. However, now that GaN has been proven in other applications, such as chargers, its value proposition is now being se
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Date:
06/01/2025