GaN-Ready Transformers and Inductors

Precision, Inc. announces the global launch of the company's GaN-ready magnetic capabilities. GaN-ready LLC transformers and PFC inductors are now available for a broad range of applications including, power factor correction, server, solar, automotive/HEV, industrial motor drives, and power supplies/UPS. GaN switches provide an impressive number of key benefits to design engineers including: significant reductions in system volume, weight and size; higher operating temperatures / reduced heat sink requirements; lower switching losses / increased power output (up to 95% peak efficiency); and high breakdown strength, high maximum current and high oscillation frequency.

“Due to the many key benefits it provides, GaN switching technology is fast becoming a very popular option in a wide number of applications,” explained Welly Chou, Design Engineering Manager at Precision. “Precision is proud to have joined forces with industry-leading GaN switch producers to create and now introduce high performance GaN technology with demonstrated results.”

Precision has partnered with GaN experts including International Rectifier Corp. and Transphorm, Inc. to create ultra-compact power supplies with LLC transformer and PFC inductor technologies designed for optimum performance at high switching frequencies. Precision brought unique expertise in core material selection and parasitic (i.e., leakage inductance and capacitance) management together with an extensive Litz wire selection to cutting edge GaN technologies that are now available worldwide.

The EZ-GaN Evaluation Board All-in-One Power Supply from Transphorm is a complete high-density 250W computer power supply using 600V GaN HEMTs switching at 200 kHz. The system provides up to a 45% reduction in size compared to an Si-based equivalent with a highly efficient design (greater than 95% peak efficiency). International Rectifier demonstrated its GaN technologies through a bridgeless Totem-Pole PFC circuit at APEC 2014. The circuit achieves 99% efficiency with Precision’s PFC-01200-00 inductor.