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E-Mobility power solution

GaN Systems and EPowerlabs, an engineering services firm specialising in e-mobility applications, have developed a high-density DC/DC power converter (DDC48-1K) for a wide range of 48V mobility applications for consumer, industrial, and automotive customers

By using GaN it's been possible to address the space constraint challenges that are typical in electric mobility systems by providing more power in a smaller form factor. The GaN converter is one-third smaller and 50% lighter than standard converters and has an overall efficiency of above 95%.

“Creating a more sustainable world through e-mobility is at the heart of our mission and leveraging technologies like GaN are vital in accelerating this move,” said Mikel Parel, CEO of EPowerlabs, “This is demonstrated by our GaN Systems-based converter, which reduces power losses by more than 50% compared to silicon-based designs in the market and is one-third the size of legacy converters."

The converter has an input voltage range of 24-60VDC and is rated at up to 1kW continuous power with an overall efficiency above 95%. It offers a reliable and efficient solution for electric mopeds and scooters, EV systems and vehicles, and numerous transportation and robotics applications.

Highlights include:

  • High Efficiency: Efficiency is 97.5% at full load, which is a 4% improvement from similar types of converters currently available in the market.
  • High Power Density: Power density is 28W/in3 compared to 10W/in3 in converters using other topologies and switches.
  • Smaller Weight: The design without the case weighs only 345g, and an air-cooled DC/DC of the same power weighs around 750g.

EPowerlabs’ GaN-based DC/DC converter uses GaN Systems 100V E-mode transistors (GS61008P), which leverage GaNPX embedded packaging and the high current, voltage breakdown, and switching frequency of GaN.

This combination allows high power, low loss performance, and thermal efficiencies in smaller, lighter power systems.

Author
Neil Tyler

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