6.6 kW High Frequency LLC

• Demonstration of Wolfspeed’s 650 V 60 mΩ E-Series Silicon Carbide MOSFETs in a 6.6 kW High Frequency DC-DC converter targeting high power density applications
• The demo board consist of a DC-DC LLC topology in which primary side is based on a Full bridge stage while the secondary side is based on a asynchronous rectification stage
• Utilization of high frequency operation allow the demo board to be smaller; lighter and overall more cost effective
• Wolfspeed’s 6.6 kW high frequency demo board can accept 380 VDC – 420 VDC as an input and provide 400 VDC at the output with > 96 % efficiency
• Main target application of this demo board include: Industrial power supplies and EV Chargers
• Documentation includes a bill of materials (BOM); schematic; board layout and the application note

Specifications

• Input Voltage: 380VDC → 420VDC
• Output Voltage 400VDC
• -Max current: 16.5A
• -Output Power: 6.6kW
• Switching Frequency: 500kHz – 1 MHz
• Closed loop control for regulated output
• -Optional external PWM inputs for open loop testing