WeEn Semiconductors has introduced a new family of silicon carbide (SiC) power modules developed for solid-state transformers (SSTs), alongside applications including EV fast chargers, smart-grid infrastructure, and renewable energy systems. The launch covers more than 20 module variants spanning 1200 V to 2300 V, providing building blocks for multiple stages of an SST power conversion system.
The family includes AC-DC and DC-DC modules for grid-side power factor correction (PFC), LLC converters, and dual active bridge (DAB) topologies. According to WeEn, the platform covers around 90% of current SST applications and is available in production quantities.
Modules Across the SST Power Chain
Rather than focusing on a single converter stage, the new lineup includes modules for several parts of an SST architecture.
For the AC side, WeEn offers both two-level and three-level topologies. The three-level modules target applications where lower electromagnetic interference is required, while the two-level versions provide a simpler control approach and smaller footprint.
The company also announced half-bridge modules for LLC and DAB converters on both the primary and secondary sides of the transformer. These are available in B2, B3, and 62 mm screw-mount packages.
Voltage Ratings up to 2300 V
The module family spans breakdown voltages from 1200 V to 2300 V, with on-resistance values as low as 1.5 mΩ depending on the device.
WeEn states that the modules have been developed with low inductance and a pin arrangement that leaves space for gate-drive circuitry while considering electrical isolation and system integration.
The company also offers configurable options covering direct bonded copper substrates, case materials, silicone gel, terminal plating, mounting options, and pre-applied thermal interface materials through its custom design service.
AI Infrastructure and Medium-Voltage Systems
Among the intended applications are solid-state transformers for AI data centers, where WeEn says the modules can be used in grid-side PFC stages that convert 35 kVAC directly to 800 VDC.
The company also positions the family for EV fast chargers, renewable energy systems, and smart-grid equipment requiring medium-voltage power conversion. All devices are available for sampling and production.
Learn more and read the original announcement at the WeEn Semiconductors website.
Technology Overview
WeEn's WMSC family is a platform of SiC power modules covering AC-DC and DC-DC stages used in solid-state transformers. The portfolio includes more than 20 modules with breakdown voltages from 1200 V to 2300 V, on-resistance values down to 1.5 mΩ, and package options including B2, B3, PCB-mount, and 62 mm screw-mount designs.
Frequently Asked Questions
What applications are the WeEn WMSC modules designed for?
The modules target solid-state transformers, EV fast chargers, smart-grid infrastructure, renewable energy systems, and other medium-voltage power conversion applications.
What voltage ratings are available?
The family spans breakdown voltages from 1200 V to 2300 V, depending on the module.
Which converter topologies are supported?
The platform includes modules for grid-side PFC, LLC converters, and dual active bridge (DAB) converters, with both two-level and three-level configurations available.
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