Press release

Soft-switching Pioneer, Pre-Switch, Launches CleanWave 200W SiC inVerter Evaluation System Demonstrating Increased EV Efficiency and Range, Plus Reduced Battery Size and Weight

Sponsored by Businesswire

Inc., the Silicon Valley start-up that is delivering soft switching for
DC/AC and AC/DC power conversion, today announced its CleanWave 200kW
silicon carbide (SiC) automotive inverter evaluation system that enables
power design engineers to investigate the accuracy of the company’s soft
switching architecture and platform over varying load, temperature,
device tolerance and degradation conditions.

Pre-Switch’s platform, including the Pre-Drive™3 controller board,
powered by the Pre-Flex™ FPGA, and RPG gate driver board, virtually
eliminates switching losses, enabling fast switching at 100kHz,
significantly improving low torque motor efficiency. High switching
frequency also reduces motor copper and iron losses. For electric
vehicles this results in a massive increase in range of 5-12%. The
soft-switching solution also benefits industrial motors, solar, wind and
traction applications or any other power converter requirement greater
than 100kW that is looking to reduce costs and improve efficiency.

Comments Bruce T. Renouard, CEO, Pre-Switch: “With Pre-Switch, critical
design challenges hindering EV adoption, have been solved. Previously,
the limited switching frequency of inverters resulted in a distortion of
the output power sine wave causing excessive motor inefficiencies. Our
CleanWave inverter evaluation system – which is available to pre-order
now – uses Artificial Intelligence (AI) to constantly-adjust the
relative timing of elements within the switching system required to
force a resonance to offset the current and voltage wave forms – thereby
minimizing switching losses and increasing EV range.”

Pre-Switch’s forced-resonant soft-switching topology replaces the
traditional IGBT driver or silicon carbide driver with a common
intelligent controller board, Pre-Drive3, and a specific plug-in RPG
(Resonant Power Gate) module optimized for the customer’s chosen SiC or
IGBT package. The Pre-Switch architecture increases efficiency and
range, while reducing size and weight. A new video explaining the
technology and its application to EVs is available at:

Pre-Switch: Further, Faster, Lighter, Cheaper – Cooler

About Pre-Switch

Pre-Switch, Inc. is a Silicon Valley company that delivers AI-based
soft-switching power architectures that minimize switching losses,
resulting in dramatic improvements in efficiency, size, performance and
reliability. Key applications include for electric vehicles, solar
inverters, wind turbines, UPS, storage and motor drives. Pre-Switch™
technology increases eV range, reduces battery size, shrinks power
converter size and cost, while minimizing cooling requirements.
Pre-Switch was founded by industry experts in power semiconductors,
power systems, robotics, and artificial intelligence. Pre-Flex
technology is patent pending globally.

Pre-Switch®, the Pre-Switch logo and other trademarks or service names
are the trademarks of Pre-Switch, Inc.