Page 5 - PowerUp 2021 Conference Proceedings for PEN
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Wide Bandgap
EPC’s 100-V, 65-A ePower chipset — EPC23101 eGaN IC + EPC2302 eGaN FET — delivers 96% efficiency at 1-MHz
switching frequency and 97% efficiency at 500-kHz switching frequency. (Source: EPC)
technology, but she counters that Kubos’s cubic-GaN LED technology could deliver a further 20%
to 40% increase in efficiency. This translates into a carbon footprint and carbon savings of nearly
700 million tons of CO emissions over five years in lighting and displays, she said.
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O’Brien said the new cubic-GaN can eliminate the inefficiencies in green and amber lights and offer
opportunities in producing solutions that can be not only more efficient but also would improve color
rendering and mimic daylight more effectively.
The “green gap,” or drop in efficiency in green and amber LEDs, is said to reduce the performance and
increase the cost and size of RGBs. With cubic-GaN technology, the quantum confined stark effect
and electric fields are eliminated, providing benefits in scale and longer wavelengths, and it delivers
a reduced spectral drift, she said.
Similarly, GaN power device manufacturers like Navitas are focused on delivering technologies and
devices that support electrification, which, in turn, reduce the world’s reliance on fossil fuels.
FEBRUARY 2022 | www.powerelectronicsnews.com 5
