Infineon Technologies and Visteon-Shinry Power Electronics (VSPE) will jointly develop a single-stage onboard charger rated at 22kW for three-phase AC charging and 19.2kW for single-phase AC. The Germany-based semiconductor supplier announced the partnership with VSPE, a joint venture between US cockpit supplier Visteon and China's SHINRY Technologies.

The engineering logic rests on one decision: collapsing two power-conversion stages into one. Conventional onboard chargers handle power conversion in two separate stages, which requires bulky bulk capacitors. The single-stage design removes those capacitors, and Infineon says this cuts component counts, packaging size, system complexity and manufacturing costs.

The company offered no figures for those reductions. No cost target, no volume estimate, no launch customer and no production date appear anywhere in the announcement. The savings exist, for now, as engineering claims awaiting a vehicle programme.

What does the switch actually do?

Infineon contributes its monolithic gallium nitride (GaN) bidirectional power switches. GaN is a wide-bandgap semiconductor material that switches at higher frequencies than silicon; bidirectional means a single component can block voltage and conduct current in both directions.

That integration matters for arithmetic. Combining two blocking and conduction paths in one device reduces the number of semiconductors the charger needs. High-frequency switching also shrinks the magnetic components — the transformers and inductors — raising power density.

The switch carries an external endorsement of sorts. Infineon says the component was recognised as a "Global New Energy Vehicle Innovative Technology" at the 2026 World New Energy Vehicle Congress.

Benoit Rousseau, vice president for GaN Automotive at Infineon, said: "Together with VSPE we are pushing the boundaries of onboard charging for the next generation of EVs. Our GaN bidirectional switch combines leading-edge switching performance and efficiency with a new level of semiconductor integration, enabling new power conversion architectures."

Who is VSPE?

The partner is a joint venture pairing two different businesses. Visteon, headquartered in Michigan, operates in 17 countries and builds mobility software, digital cockpits, displays and EV architecture systems. SHINRY Technologies, founded in Shenzhen in 2005, produces onboard power solutions — DC/DC converters and onboard chargers — for new energy vehicles, fuel cell EVs and digital energy systems, with research and production sites in Shenzhen, Shanghai, Hefei and Wuhan.

VSPE brings the custom circuit design, control software and systems engineering around Infineon's silicon. Zilai Zhao, co-general manager of VSPE, said: "This collaboration brings together complementary strengths in vehicle electronics, power conversion and advanced semiconductors. By combining Visteon's system expertise and Infineon's GaN leadership, we're delivering a transformative solution for next-generation EV platforms."

"Transformative" is a claim, not a specification. Whether the design wins production contracts depends on cost per kilowatt against incumbent silicon-based two-stage chargers — a comparison neither company addressed.

Vehicle-to-grid included

The charger supports bidirectional vehicle-to-everything capability, meaning the car can push power back to the grid rather than only drawing it. That function matters for utilities and fleet operators, though its commercial value depends on grid regulation and tariff structures that vary by market.

The VSPE deal follows another Infineon automotive move this month: an agreement with Qualcomm to develop a microcontroller-based subsystem for Qualcomm's Snapdragon Ride automotive compute platforms. Infineon is positioning across both the power and compute sides of the EV architecture stack.