QPT and RAM Collaborate on GaN Inverter Technology

UK startup QPT has teamed up with packaging experts RAM Innovations to develop a cutting-edge high-performance traction inverter utilizing gallium nitride (GaN) transistors. The collaboration is part of the VERDE project, which aims to create a high-frequency, 400V/60kW GaN inverter as a demonstrator for automotive applications. QPT, based in Cambridge and Portugal, is working closely with RAM in Deeside, a member of the Russel group known for its expertise in thermal packaging.

The innovative demonstrator inverter is designed to feature high-frequency GaN switching up to 1MHz, which helps reduce the size of the magnetics required while increasing overall efficiency. One of the key highlights of the project is QPT's development of a pure sine wave output, which effectively minimizes harshness, noise, and vibration. This not only enhances reliability but also contributes to lower power consumption, making it a game-changer in the automotive industry.

According to Rupert Baines, CEO of QPT, "Our system technology paves the way for GaN to be utilized in high-power, high-performance applications, addressing the thermal and EMI challenges that have hindered GaN adoption in automotive settings in the past. We are in discussions with automotive companies interested in partnering with us to revolutionize the market currently dominated by SiC technology and introduce GaN-based inverters."

Peter Green, CEO of RAM Innovations, expressed his enthusiasm for the project, stating, "This initiative will showcase a demonstrator at the Cenex Expo at UTAC Millbrook, UK in September 2025, providing a platform for leading EV companies to witness the technological advancements enabled by the project. The investment from APC will expedite the commercialization of the technology by at least two years."

The project, spearheaded by Ian Stacey, QPT's VP of Engineering and Operations, marks a significant milestone in the transition from legacy silicon and SiC components to GaN technology. Stacey emphasized the broader implications of the project, noting, "This endeavor unlocks the potential of GaN and represents a crucial step forward in its widespread adoption. In addition to driving research and development efforts, it is expected to create approximately 70 manufacturing jobs in the UK by 2032 as the technology is translated into market-ready products."