Automotive traction inverter hits efficiency 98.5% at 5% load (and peaks at 99.57%)

Posted on: 03/22/2023

It is a 100kHz forced-resonant, soft-switching inverter, controlled by an AI algorithm (more on the technology here).

“Over a year ago we announced peak efficiency of over 99%. Since that time, we have been improving our AI algorithm to improve low-load performance,” said company CEO Bruce Renouard, claiming that his 5% load efficiency “is far in excess of what can be achieved by any other approach today”.

Automotive traction inverter hits efficiency 98.5% at 5% load (and peaks at 99.57%) The topology is a variation of an auxiliary resonant commutated pole (ARCP) soft-switching converter, with the AI calculating switch timings dynamically, cycle-by-cycle, to maintain soft switching over input voltage, output load and temperature variations, as well as device tolerances.

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Source: https://www.slw-ele.com/automotive-traction-inverter-hits-efficiency-98-5-at-5-load-and-peaks-at-99-57.html