CIES Consortium

Industry-Academic Collaboration

Power Electronics Module Technology

R&D of next-generation electrical component technologies

In this research theme, industry and academia are researching and developing DC-DC converters using GaN on Si lateral power devices that can be driven at high frequencies.
This contributes to the realization of a highly efficient and ultracompact DC-DC converter that can handle the increased power supply due to the increase in the number of sensors and actuators associated with the progress of automated driving in automobiles.
We are developing the following technologies.

1. High-frequency drive technology for DC-DC converters
   Development of high-frequency drive technology using ultra-highspeed GaN on Si lateral power devices that enables downsizing of passive components such as passive components such as isolation transformers, reactors, and capacitors in DC-DC converter.
2. Low noise technology
   Reduction of noise filter (miniaturization of DC-DC converter) by driving DC-DC converter at high frequency (2MHz or higher) above AM radio frequency band, and development of optimum driving technology to suppress ringing noise.
3. High power technology
   Development of parallel connection operation technology and multiphase operation technology for GaN on Si devices