Peak Nano announced a strategic partnership with Advanced Conversion (a wholly owned subsidiary of ETI of Clearwater, Florida) to co-develop next-generation DC-link capacitor solutions for high-voltage e-mobility applications, with an initial focus on high-performance and commercial platforms including Formula E and performance automotive, electric buses and heavy trucks, off-highway and industrial vehicles, and electrified aviation.
The shift to 800V+ power architectures was supposed to unlock the next generation of EV performance, charging speed, and electrified aviation. Instead, engineers keep running into the same wall: DC-link capacitors that weren’t designed for the high currents, thermal loads, switching speeds, and voltage stress that Silicon Carbide (SiC) MOSFETs demand.
The workarounds (derating capacitors, oversizing the DC link, adding cooling infrastructure) are expensive, weight-restrictive, and space-consuming, and they undermine the efficiency gains SiC was designed to deliver.
“SiC has fundamentally changed what the DC link must deliver, and the industry has been working around legacy polypropylene limitations for too long. Engineers designing 800V+ inverter systems shouldn’t have to derate, oversize, or add cooling just so their capacitors can keep up,” said Edward Sawyer, CEO of Advanced Power Conversion Solutions.
“NanoPlex LDF also serves as a direct replacement for polyester-based films where the supply chain has become constrained — we’re already seeing strong adoption across our customer base. Partnering with Peak Nano gives us the film technology to match the ambition of our Power Ring platform. Together, we’re delivering a DC-link solution purpose-built for 800V SiC inverters and geometrically aligned to integrate directly with motor housings.”
A Ground-Up Solution: Power Ring + NanoPlex LDF
This partnership brings together two technologies purpose-built for the 800V+ shift. Peak Nano’s patented NanoPlex LDF film design delivers thermal stability and voltage endurance that 800V+ SiC systems require, without the derating penalties that constrain biaxially oriented polypropylene (BOPP) based designs.
Advanced Conversion’s patented Power Ring platform provides ultra-low commutation loop inductance and superior thermal coupling, enabling fast-switching SiC modules to operate at their full potential in compact, high-heat environments.
Together, they close a critical gap in high-voltage inverter design that neither company could address alone.
