GaNの話シリコンを粉砕するために捧げたブログ
Term: ePower Stage
3 post(s) found

Reduce Audible Noise in Motor Drive Designs Using eGaN FETs and ICs

Reduce Audible Noise in Motor Drive Designs Using eGaN FETs and ICs
1 15 2021

Brushless DC (BLDC) motors are popular and finding increasing application in robotics, e-mobility, and drones. Such applications have special requirements such as lightweight, small size, low torque ripple, low audible noise, and extreme precision control.  To address these needs, the inverters powering the motors need to operate at higher frequency but require advanced techniques to reduce the resultant higher power loss. Enhancement-mode gallium nitride (eGaN ®) transistors and integrated circuits offer the ability to operate at much higher frequencies without incurring significant losses. 

How to Design a Bi-Directional 1/16th Brick 48 V-12 V Converter Using Monolithic GaN ePower™ Stage

How to Design a Bi-Directional 1/16th Brick 48 V-12 V Converter Using Monolithic GaN ePower™ Stage
12 15 2020

Brick DC-DC converters are widely used in data center, telecommunication and automotive applications, converting a nominal 48 V bus to (or from) a nominal 12 V bus. Advances in GaN integrated circuit (IC) technology have enabled the integration of the half bridge and gate drivers, resulting in a single chip solution that simplifies layout, minimizes area, and reduces cost.

This application note discusses the design of a digitally controlled bi-directional 1/16th brick converter using the integrated GaN power stage for 48 V-to-12 V application, with up to 300 W output power, and peak efficiency of 95%.

The standard dimension of the 1/16th brick converter is 33 x 22.9 mm (1.3 x 0.9 inch). The height limit for this design is set to 10 mm (0.4 inch).

ePower™ Stage:電力変換を再定義する

ePower™ Stage:電力変換を再定義する
3 16 2020

GaN技術は、性能とコストの改善だけでなく、電力変換市場に影響を与える最も重要な機会は、同じ基板上に複数のデバイスを集積する本質的な能力にあります。標準的なシリコンIC技術とは対照的に、GaN技術を使うと、モノリシックのパワー・システムを、より簡単でコスト効率の高い方法でワン・チップに集積できます。