CooliBlade News

New CooliBlade Use Study: Solving MW-Scale Converter Overheating

Written by Aki Määttä | Sep 16, 2025 7:18:01 AM
If you’re in power electronics, you know the feeling. You’ve designed a next-generation system with powerful, efficient SiC modules, but you’ve hit a thermal wall. Getting the heat out has become the single biggest bottleneck preventing you from reaching your product's true potential. What do you do?


Stuck Between a Rock and a Hard Place

This was the exact situation one of our customers faced while developing a new megawatt-scale power converter. Their existing cooling solution, a massive 39 kg aluminum heatsink, just wasn't cutting it anymore.

They were left with two bad options:

  1. Stick with an underperforming air-cooling system and throttle back their design's performance.

  2. Embark on a costly, time-consuming redesign to integrate a complex liquid cooling system, adding a whole new set of risks, failure points, and maintenance headaches.

It was the classic engineering dilemma where every choice felt like a compromise.

A Breakthrough with a 'Plug & Play' Upgrade

Instead of compromising, they found a third option. By integrating the CooliBlade ULTIMA, a passive thermal solution powered by our NEOcore™ thermosiphon technology, they found a way to get the performance they needed without the complexity they wanted to avoid. This wasn't a system overhaul; it was a simple, plug-in upgrade that acted as a thermal superhighway, pulling heat away from their critical components with incredible efficiency.

The ULTIMA cooling solution

The Results: More Power, Less Heat, Zero Headaches

By upgrading their thermal management with the CooliBlade ULTIMA, the customer didn't just solve their overheating problem—they unlocked a new level of performance. The results, made possible by the integrated NEOcore™ technology, speak for themselves:

  • A 25°C drop in component temperature under the same loads.

  • A 50% reduction in weight, going from a 39 kg brick to a sleek 18.5 kg solution.

  • Zero system redesign, saving them months of development time and resources.

This project proves you don’t need the complexity of liquid cooling to handle high-power applications.

Want to see the engineering data and performance graphs behind the story? Get the full technical breakdown in our new use case study.

Read the full story here: cooliblade.com/case-study-power-converter-cooling