Microinverters and power optimizers are widely utilized in modern solar panels to maximize energy efficiency and conversion. Such topologies and implementations usually require a minimum of 25 years of lifetime, which is becoming a critical challenge for market adoption. Low-voltage gallium nitride (GaN) power devices (VDS rating < 200 V) are a promising solution and are being used extensively by an increasing number of solar manufacturers.

In this article, a test-to-fail approach is adopted and applied to investigate the intrinsic underlying wear-out mechanisms of GaN transistors. The study enables the development of physics-based lifetime models that can accurately project the lifetimes under the unique demands of various mission profiles in solar applications.

How2Power
August, 2023
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Efficient Power Conversion (EPC) introduces the 150 V, 6 mΩ EPC2308 GaN FET, offering higher performance and smaller solution size for high power density applications including DC-DC conversion, AC/DC SMPS and chargers, solar optimizers and microinverters, and motor drives.

EL SEGUNDO, Calif.— October 2022 — EPC, the world’s leader in enhancement-mode gallium nitride (eGaN^®) power FETs and ICs, expands the selection of off-the-shelf GaN FETs in thermally enhanced QFN packages with the introduction of the 150 V EPC2308 designed for motor drive in power tools and robots, high density DC-DC from/to 80 V-100 V for industrial applications, synchronous rectification to 28 V – 54 V for chargers, adaptors and power supplies, smartphones USB fast chargers, and in solar optimizers and microinverters.

GaN FETs in thermally enhanced QFN packages offer higher performance and smaller solution size for high power density applications, including DC-DC conversion, AC/DC chargers, solar optimizers and microinverters, motor drives, and Class D Audio

Power Electronics News
September, 2022
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