industry news
Subscribe Now

GaN Systems Unveils Revolutionary New GaN-Based 800V On-Board Charger (OBC) Reference Design

GaN OBC Changes the Game for EV Automotive Applications

OTTAWA, Canada – March 20, 2023 – APEC – GaN Systems, the global leader in GaN (gallium nitride) power semiconductors, today announced at APEC 2023 a new GaN-based 11kW/800V On-Board Charger (OBC) reference design that delivers 36% higher power density and up to 15% lower Bill of Materials (BOM) cost compared to silicon carbide (SiC) transistors.

Utilizing GaN transistors in an 800V OBC is a revolutionary innovation that sets this 11kW/800V solution apart from competitors. Delivering remarkable power density and a lower BOM cost, the OBC combines a three-level flying capacitor topology for a bridgeless totem-pole PFC structure and dual active bridge in the AC/DC and DC/DC, respectively. The GaN transistors, in the three-level topology with superior switching performance, reduce the transistor voltage stress to half and allow the economical 650V GaN to be used in this and many other 800V applications.

Key Features of the OBC design

  • 36% higher power density compared to silicon carbide
  • AC/DC stage peak efficiency>99%, DC/DC stage peak efficiency>98.5%
  • Smaller total semiconductor power loss
  • Minimized gate ringing, lower noise and ringing during switching transitions
  • Improved thermal performance by employing an IMS interface

GaN power semiconductors increase the efficiency of the OBC by reducing switching losses and power dissipation during operation. This improved efficiency reduces power losses during EV charging, making the OBC significantly more energy-efficient and cost-effective. For instance, the solution’s higher efficiency reduces the complexity and cost of the cooling system design. The compact and highly efficient design helps reduce the overall size and weight of the OBC, freeing up space and weight that can be allocated to other areas of the EV design.

“The GaN-powered 800V on-board charger reference design is a major advance that will accelerate GaN adoption in the automotive sector,” said Jim Witham, CEO of GaN Systems. “Our new cutting-edge design delivers extraordinary gains in efficiency, power density, cost, thermals, and CO2 footprint reduction to deliver a game-changing solution for our automotive customers.”

Contact GaN Systems for more information about our products and our new GaN-based 11kW 800V On-Board Charger (OBC) here.

About GaN Systems
GaN Systems is the global leader in GaN power semiconductors with the most extensive transistors portfolio that uniquely addresses the needs of today’s most demanding industries, including consumer electronics, data center servers, power supplies, renewable energy systems, industrial motors, and automotive electronics. As an industry-leading innovator, GaN Systems makes designing smaller, lower-cost, more efficient power systems possible. The company’s award-winning products provide system design opportunities free from the limitations of yesterday’s silicon. By changing the transistor performance rules, GaN Systems enables power conversion companies to revolutionize their industries and transform the world.
For more information, please visit: www.gansystems.com or on FacebookTwitter and LinkedIn and scan this QR code for our WeChat.

Leave a Reply

featured blogs
May 8, 2024
Learn how artificial intelligence of things (AIoT) applications at the edge rely on TSMC's N12e manufacturing processes and specialized semiconductor IP.The post How Synopsys IP and TSMC’s N12e Process are Driving AIoT appeared first on Chip Design....
May 2, 2024
I'm envisioning what one of these pieces would look like on the wall of my office. It would look awesome!...

featured video

Introducing Altera® Agilex 5 FPGAs and SoCs

Sponsored by Intel

Learn about the Altera Agilex 5 FPGA Family for tomorrow’s edge intelligent applications.

To learn more about Agilex 5 visit: Agilex™ 5 FPGA and SoC FPGA Product Overview

featured paper

Altera® FPGAs and SoCs with FPGA AI Suite and OpenVINO™ Toolkit Drive Embedded/Edge AI/Machine Learning Applications

Sponsored by Intel

Describes the emerging use cases of FPGA-based AI inference in edge and custom AI applications, and software and hardware solutions for edge FPGA AI.

Click here to read more

featured chalk talk

Medical Grade Power
Sponsored by Mouser Electronics and RECOM
In this episode of Chalk Talk, Amelia Dalton and Louis Bouche from RECOM explore the various design requirements for medical grade power supplies. They also examine the role that isolation and leakage current play in this arena and the solutions that RECOM offers in terms of medical grade power supplies.
Nov 9, 2023
24,362 views