Diamond Electric Holdings Develops 7.4 kW Vehicle-to-Everything Onboard Charger with World's Highest Power Density
December 07, 2020 at 03:00 am EST
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Diamond Electric Holdings (DIAMOND) announced on December 3 that it has developed a 7.4 kW vehicle-to-everything (V2X, X stands for Grid, Home, and Load) onboard charger (OBC) with the world's highest power density (1) as high as 1.2 kW/L (2). This product utilizes the battery of the plug-in electric vehicle (BEV/PHEV) to provide grid services, serve demand response, and provide backup power in an outage. This product complies with UL 9741 to meet America's market which leads the making of onboard V2G regulation. The compliance and the high power density facilitate the onboard V2X application of this product. The stabilization of the grid is key to the spread of BEV/PHEV and renewable energy. Vehicle-to-grid (V2G) is a significant solution as it enables the BEV/PHEV's onboard battery to provide power to stabilize the grid through a bidirectional charger. Furthermore, vehicle-to-home (V2H) and vehicle-to-load (V2L) has attracted attention in recent years for its ability utilizing the BEV/PHEV's onboard battery as anytime backup power. The OBC with grid-interconnection capability is essential for penetration of V2X which embraces V2G, V2H and V2L. In response, the company has developed a 7.4 kW V2X OBC with the world's highest power density as high as 1.2 kW/L, power conversion efficiency up to 96.3% (3), three-wire single-phase system compatibility, and 4 kV isolation performance. Furthermore, the product is UL 9741 compliant. These features facilitate the V2X OBC implementation on EV/PHEV. The company owes the features to the Diamond Electric's proprietary ultra-compact isolated bidirectional DCDC converter and inverter utilizing GaN and SiC which have been developed since 2017 and its expertise on design and manufacturing of automotive electrification products and to Tabuchi Electric's 20+ years of experiences on grid interconnection with high power quality.
Diamond Electric Holdings Co Ltd is a Japan-based company mainly engaged in the manufacture and sale of electronic control devices such as ignition coils and electrical components for automobiles. The Company operates through three business segments. The Automotive Equipment segment is engaged in the development, manufacture, sale, and supply of maintenance services for automotive ignition coils and electrical components. The Energy Solutions segment is engaged in the development, manufacture, sale, and supply of maintenance services for power conditioners for solar power generation and hybrid systems for energy storage. The Electronic Devices segment is engaged in the development, manufacture, sale, and supply of maintenance services for ignition devices for home heating and cooling systems and hot water supply systems, electronic control devices, and other products.