1000V SiC MOSFET Power Fast Battery Chargers In Electric Vehicles!


Wolfspeed has introduced a 1000V MOSFET specially optimized for fast charging and industrial power supplies. The device, according to the firm, enables a reduction in overall system cost, while improving system efficiency and decreasing system-size.

The new MOSFET enables a 30 percent reduction in component-count while achieving more than 3x increase in power density and a 33 percent increase in output power.

“Supporting the widespread implementation of off-board charging stations, Wolfspeed’s technology enables smaller, more efficient charging systems that provide higher power charging at lower overall cost. This market requires high efficiency and wide output voltage range to address the various electric vehicle battery voltages being introduced by automotive suppliers,” explained John Palmour, CTO of Wolfspeed.

“Wolfspeed’s new 1000V SiC MOSFET offers system designers ultra-fast switching speeds with a fraction of a silicon MOSFET’s switching losses. The figure-of-merit delivered by this device is beyond the reach of any competing silicon-based MOSFET,” Palmour added.


The increase in output power in a reduced footprint is realized by the ultra-low output capacitance―as low as 60pF― which significantly lowers switching losses.

This device enables operations at higher switching frequencies, which shrinks the size of the resonant tank elements and decreases overall losses, thus reducing heatsink requirements.

To quickly evaluate the new 1000V SiC MOSFET, the firm offers a 20kW full-bridge resonant LLC converter reference design, listed as part number CRD-20DD09P-2. This fully assembled demonstrates its faster switching capability as well as the increased system power density the device enables, the firm says.

The LLC converter’s reference design files include full schematics, bill of materials, simulation files and detailed a user guide.

Extend Range Of Your Electric Car With New SiC MOSFET!

The new 1000V, 65mOhm MOSFET is available in a through-hole, 4L-TO247 package and is listed as part number C3M0065100K. The device is currently available for purchase from several top distributors.

For further technical information about the new MOSFET, download the datasheet here.



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