Transphorm GaN Moves Into PC Gaming Market With CORSAIR

Wednesday 7th February 2018

Transphorm designer and manufacturing of the highestreliability and only qualified high voltage Gallium Nitride (GaN)semiconductors—have confirmed that its GaN FETs are used in CORSAIR’s newAX1600i Power Supply Unit (PSU). CORSAIR supplies the gaming community withhigh-performance products used in custom PCs. The company’s latest productestablishes a new class of AC to DC PSUs, as it is the first to use GaN andachieves 99 percent efficiency. Transphorm’s GaN increases the PSU’s poweroutput by 6.5 percent in an 11 percent smaller package at the same temperature.

“Our objective was to take an already award-winning PSU andmake it better," explained Jon Gerow, PSU R&D Manager, CORSAIR. “We aimedto maximize output from any PC running on a 115V mains. To do this was, we hadto adopt innovative methods and materials. Transphorm’s GaN ultimately gave usthe boost in performance, efficiency and size we wanted along with the highquality and reliability we needed to confidently release the AX1600i to ourcustomers."

After researching market-available GaN devices, CORSAIRchose Transphorm’s FETs as they enabled the AX1600i to deliver new benchmarkscompared to the previous AX1500i:

•Poweroutput: 1600W, 6.5 percent increase

•Sizereduction: 20 mm shorter, 11 percent smaller

•Thermalimpact: equivalent 50°C continuous output

•Audiblenoise impact: slower fan speed, less noise at full load

CORSAIR noted that Transphorm’s packaging also played a rolein its selection process. The TPH3205WS comes in a commonly used TO-247package, reducing some design complexity.

“CORSAIR’s brand is built on products that give ourcustomers a competitive edge, inside and outside of the gaming PC. And,Transphorm’s GaN presented an invaluable opportunity to advance the PSU—to makeit smaller, quieter, cooler, and, most importantly, more powerful," addedGerow.

Collaboration: The Transphorm Edge

Transphorm’s commitment to high quality and reliabilityextends beyond the technology. Gallium Nitride devices are higher frequency,sometimes requiring different design techniques than previously used with Si.The company’s GaN experts collaborate regularly with customers to provideguidance as well as to identify areas of opportunity for future platforminnovation and customer design resources.

Regarding the AX1600i project, Transphorm supported CORSAIRduring both the prototyping and the design validation testing phases. CORSAIRtapped Transphorm’s teams on the ground in both Shenzhen, China, andCalifornia, U.S.

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