Bidirectional 1200 V GaN switch with integrated free-wheeling diodes
Reports and Proceedings
Updates every hour. Last Updated: 8-Oct-2025 10:11 ET (8-Oct-2025 14:11 GMT/UTC)
Fraunhofer IAF has developed a monolithic bidirectional switch with a blocking voltage of 1200 V using its GaN-on-insulator technology. The switch contains two free-wheeling diodes and can deliver performance and efficiency benefits in bidirectional chargers and drives for electric vehicles as well as in systems for generating and storing renewable energy. The results will be presented together with other developments in power electronics from May 6 to 8, 2025, at PCIM Europe in Nuremberg.
Enhancing wheat plants’ sugar signalling ability could deliver increased yields of up to 12%, according to researchers from Rothamsted, Oxford University and the Rosalind Franklin Institute in a study published today in the journal Nature Biotechnology. That is an order of magnitude greater than annual yield increases currently being achieved through breeding.
29 April 2025/Kiel. Increasing the natural uptake of carbon dioxide (CO₂) by the ocean or storing captured CO2 under the seabed are currently being discussed in Germany as potential ways to offset unavoidable residual emissions and achieve the country’s goal of greenhouse gas neutrality by 2045. However, which carbon dioxide removal (CDR) and storage methods could actually be used depends heavily on local conditions. In Germany’s North Sea and Baltic Sea waters, the options are limited to just a few approaches. This is the conclusion of a first feasibility assessment carried out by researchers involved in the CDRmare research mission. The study was recently published in the journal Earth’s Future.
A pioneering study uncovers crucial immune dynamics in hepatitis B, offering new insights into how immune responses evolve throughout the different clinical phases of Hepatitis B virus (HBV) infection. Researchers analyzed liver and blood samples from patients in various clinical phases—acute hepatitis B (AHB), immune tolerant (IT), immune active (IA), and inactive chronic infection (ICI)—using single-cell RNA and TCR/BCR sequencing. The findings highlight critical immune cell subsets and potential molecular mechanisms that drive disease progression, providing valuable targets for the development of future immunomodulatory therapies.