Japanese Journal of Applied Physics

ROHM’s New Ultra-High-Speed Gate Driver IC: Maximizing the Performance of GaN Devices

Retrieved on: 
Wednesday, November 8, 2023

This was facilitated through a deep understanding of GaN technology and the continuing pursuit of gate driver performance.

Key Points: 
  • This was facilitated through a deep understanding of GaN technology and the continuing pursuit of gate driver performance.
  • As these applications require the use of high-speed switching devices, in conjunction with the release of GaN devices, ROHM developed an ultra-high-speed gate driver IC that maximizes GaN performance.
  • As GaN devices are sensitive towards gate input overvoltage, ROHM has developed a unique method to suppress the gate voltage overshoots and has implemented it into this driver.
  • On the other hand, to demonstrate the performance of GaN devices, gate driver IC that enable high-speed switching while taking into account the low drive voltage of GaN HEMTs are essential.

Diagnostic Imaging against Storage Battery Explosion: Toward the Dissemination of Next-Generation Storage Batteries

Retrieved on: 
Wednesday, September 14, 2022

KOBE, Japan, Sept. 14, 2022 /PRNewswire/ -- Integral Geometry Science Inc. (https://www.ig-instrum.co.jp/), a Japanese deep tech imaging startup, releases an innovative inspection system, which will enable battery manufacturers to detect products having ignition risks with higher-precision. The system is applied with a theory of inverse problem, developed by Professor Kenjiro Kimura of Kobe University Japan, for the first time in applied mathematics history.

Key Points: 
  • Storage batteries are used in many fields for the purpose of storing energy generated.
  • Storage batteries are applied to aging tests before shipment, and only good batteries are distributed in the market.
  • However, accidents such as ignition have occurred though batteries pass these safety tests.
  • A sophisticated good/failure discrimination system is essentially required to eliminate theses batteries with non-uniform electric current density distribution.