Onboard charger claims world's highest power density

December 08, 2020 // By Christoph Hammerschmidt
Onboard charger claims world's highest power density
Diamond Electric Holdings 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 as high as 1.2 kW/L. 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.

The stabilization of the grid is key to the spread of BEV/PHEV and renewable energy. Vehicle-to-grid (V2G) is a significant aspect 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 grid-interconnection capability of OBCs is therefore essential for penetration of V2X charging.

In response, Diamond 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%, 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 high power density and efficiency are owed to the company’s proprietary isolated bidirectional DCDC converter and inverter utilizing GaN and SiC semiconductors, the company said.

More information: https://kyodonewsprwire.jp/prwfile/release/M104699/202011197405/_prw_PI4fl_vCLrnsFg.jpg

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