Finally, Wolfspeed will provide a complete hardware (CRD-20DD09P-2) demonstration that showcases the decreased complexity as well as the increased efficiency and switching speeds possible with our new MOSFETs. This 20kW 2-level full-bridge LLC resonant converter uses 1000V SiC MOSFETs in a new TO-247-4L package (C3M065100K). In the demo, two parallel devices are connected at each switch position to deliver 20kW of continuous output power with a wide output voltage range of 300–570VDC at peak efficiency of >98%. The high switching speed of SiC MOSFETs results in extremely short dead times, which in turn enables the design of compact resonant tank circuit components with resonant frequencies of 110–350kHz. Additionally, the 1kV rating of the SiC MOSFETs allows for a simple 2-level topology, despite the wide input voltage range of 650–750VDC. This design is ideal for DC fast charger applications for EVs, as well as other applications that require an isolated DC/DC converter. The hardware features integrated, isolated forced-air cooling, and delivers 33% more power with 20% fewer components in a smaller footprint than conventional Si-based multilevel designs.
Conference Sessions
Professional Education Sessions: On Sunday, March 26, at 2:30pm (Room 15/16), Wolfspeed’s Adam Barkley, Edgar Ayerbe, and Kraig Olejniczak will give a seminar titled “Practical Implementation of SiC Power Devices on Using Best Practices with a Focus on Electrification of Motor Vehicles.”
Technical Sessions: On Wednesday, March 29, at 8:30am (Room 21), Wolfspeed’s Jeff Casady, Brett Hull, Jon Zhang, Jim Richmond, and Gangyao Wang will give a lecture titled “First Automotive Reliability Assessment and Drive-Train Performance of Large-Area 900V, 10mOhm SiC MOSFETs.” Sharing this time slot in Room 1/2, Wolfspeed’s Adam Barkley, Binod Agrawal, and Scott Allen will present their paper titled “New 1000V SiC MOSFETs Enable Improved Efficiency, Density, and Cost Tradeoff Space for PFCs.”
Industry Sessions: On Wednesday, March 29, at 2:00pm (Room 15/16), Wolfspeed’s Guy Moxey will present a paper by John Mookken titled “Fast Charging EV with the Latest 1kV 3rd Generation SiC MOSFET.” On Thursday, March 30, at 8:30am (Room 13), Mrinal Das will present a paper he co-authored with Adam Barkley titled “Life Testing of Wolfspeed Industry Standard All-SiC Power Modules.”
Industry Panel: On Thursday, March 30 at 10:30am (Room 13), Wolfspeed’s CTO John Palmour will appear on a panel titled, “Progress in Industrial Power Electronics Applications of Silicon Carbide Semiconductors.”
Additional Information and Onsite Appointment Coordination
For more information about Wolfspeed SiC power products, please visit http://www.wolfspeed.com/power. For more information about APEC 2017, please visithttp://www.apec-conf.org/.
