The fuel-cell DC/DC boost converter plays a crucial role in the operation of fuel-cell electric vehicle drivetrain systems. A FC electric drivetrain system comprises of at least one DC/DC boost converter, which interlinks the fuel-cell stack with the DC link voltage of the traction inverter and the high-voltage traction battery. The fuel-cell DC/DC converter enables the energy flow between these two electrical subnets over a wide voltage range.

At Infineon, we understand that all sub-systems of fuel-cell electric vehicles need to maintain the highest possible levels of efficiency and reliability while staying cost-effective. This, in combination with the need to keep DC/DC converter dimensions to an absolute minimum, are just some of the challenges facing system designers today. That is why Infineon offers a broad range of chip-set solutions intended to optimize and support the design of DC/DC converters in fuel-cell technology.

With our extensive expertise and partner network in the automotive industry, we offer electric drivetrain solutions centered around efficiency, performance, and reliability optimization in onboard fuel-cell DC/DC electric vehicle systems. Our portfolio of next-generation Silicon Carbide (SiC) products, including our CoolSiC™ MOSFET power modules and discretes, enables best-in-class switching and conduction losses, even at very high switching frequencies.

This means designers can expect higher conversion efficiency, reduced size, and increased power density from using Infineon’s high-quality and reliable automotive DC/DC converter solutions in fuel-cell applications.

Infineon's SiC MOSFETsare available in various voltage and power classes, and we offer both module and discrete power solutions.

System benefits:

• Fully automotive-qualified product portfolio including both power module and discrete solutions

• Supports a wide range of highly efficient conversion topologies

• Compact design with highest power density

• Very low switching losses at high switching frequencies

• Isolation-integrated gate drivers

• High-performance 32-bit microcontroller solutions

• Evaluation Kit available to reduce system development time