Diamond Electric introduces business card-sized, thin 1-kW isolated bidirectional DC-DC converter
Diamond Electric Mfg. Co., Ltd. announced its business card-sized, thin isolated bidirectional DC-DC converter (IBDC). The technology can reportedly substantially downsize and reduce the weight of DC-DC converters, which are essential for rechargeable batteries, and is expected to contribute to the spread of electric vehicles (EVs) and smart grids.
In recent years, requirements of large-capacity batteries for EVs and smart grids are causing rechargeable batteries to have higher voltage. Because of this, demands are growing for higher-level isolation of DC-DC converters to ensure safety and meet safety standards.
In response, Diamond Electric has developed the new IBDC by fully using its unique controlling technology, which combines both charger and discharger circuits.
By adopting high-frequency switching technology (up to 2 MHz), Diamond Electric has developed an ultra-compact IBDC (93.5 mm x 60 mm x 10.5 mm excluding control circuit and heatsink).
Furthermore, the use of a gallium nitride (GaN) power semiconductor enabled the achievement of high conversion efficiency (up to 95%) despite the high-frequency switching. By using these technologies, the company expects to downsize the final product to 25% of other existing models.
Applications include onboard chargers and onboard AC power supply for electric vehicles; and smart grid applications such as battery systems for household use, EV stations (V2H), uninterrupted power supply systems, and portable battery systems.
Product specifications are provided at http://prw.kyodonews.jp/attach/201801220120-O1-Bv9nYY2a.pdf.
For more information about Diamond Electric, visit https://www.diaelec.co.jp/en/.