Apply for the development board now

Compact 250 kW inverter extends EV range with AI-adaptive soft switching at 100 kHz

Under the safe cover of a small umbrella, ipXchange talks with Bruce from Pre-Switch in an unplanned lunchtime rendezvous. In front of him is a small box that contains one of the world’s first soft-switching inverters, qualified for automotive applications, and with 250 kW output and 98.5% efficiency at 5% load, we really needed to discuss this innovation. 

Switching at 100 kHz, this inverter works around 10 times faster than what is commonly used for EVs today. To put Pre-Switch’s technology in context, they are leading the world in embedded AI to control the timing of circuits at 2-nanoseconds precision – this is the time taken for light to travel 2 feet! Additionally, AI-adaptive control of the soft switching across all performance conditions enables a flat efficiency curve across different loads, with efficiency peaking at 99.57%. 

The benefit of such high switching frequency is the ability to make smaller, lighter, more efficient designs – the box in the video is approximately 1 litre in volume – with the additional bonus of motors performing much better at these high frequencies. Of course, Pre-Switch provides the software and the tools to implement this state-of-the-art soft-switching technology, but there’s a slight catch for the smaller-OEM engineers in our community…  

Come on, you automotive engineers. Surely, one of you will fill in a form and get a conversation started about this range-extending EV solution.

Pre-Switch 100 kHz 250 kW CleanWave EV Inverter Evaluation Platform

Currently, Pre-Switch are only able to support applications worth 500k units per year or more, or lower-volume, extreme efficiency cases, but that doesn’t stop you all learning more about Pre-Switch’s solution here:

Apply for the development board now

Share this

We’re disrupting the world of component evaluation for design engineers and manufacturers!

Discover why ipXchange is a game changer.

Get industry related news

Sign up for our newsletter and get news about the latest development boards direct to your inbox.

We care about the protection of your data. Read our Privacy Policy.