Nvidia will collaborate with Navitas Semiconductor on its next-generation 800V HVDC architecture.

Terms of the collaboration, which sent Navitas's stock soaring in after-hours trading, weren't disclosed.

Shares of Navitas surged 186.38%, to $5.47, after the closing bell. Through the regular session's close, shares of Navitas have lost about half their value in the past year.

The architecture will support systems that power Nvidia's GPUs, aiming to establish efficient and scalable power for next-generation artificial-intelligence workloads, Navitas said Wednesday.

The new device will additionally aim to improve reliability and reduce infrastructure complexity by directly converting grid power to 800V HVDC at the data center perimeter using solid state transformers and industrial-grade rectifiers. The company said this conversion will eliminate several steps from the current process.

As a result, Nvidia's 800V HVDC architecture is expected to improve end-to-end power efficiency up to 5%, reduce maintenance costs by 70% and lower cooling costs, according to Navitas.

"With our wide portfolio range, we can support NVIDIA's 800V HVDC infrastructure, from grid to the GPU," Navitas Chief Executive Gene Sheridan said.