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Wolfspeed E3M0032120U2/UCC25800/UCC5350 | Demoboard CRD-22DD12N-U2
22 kW Bi-Directional CLLC with Top-Side Cooled U2 package
Overview
| Topology | Full-Bridge Converter symmetrical isolated |
| Input voltage | 650-900 V |
| Output 1 | 800 V / 36 A |
| IC revision | 1 |
Description
This reference design demonstrates the application of Wolfspeed’s 1200V SiC MOSFETs in a 22kW Bi-directional High Efficiency DC/DC Converter for electric vehicle (EV) on-board (OBC) and off-board fast charging applications. The C-series MOSFETs are ideally suited for off-board fast charging, while the automotive qualified E-Series devices are ready for the most challenging on-board applications. The top-side-cooled U2 power device offers lower parasitic inductances and facilitates automated assembly while delivering superior thermal performance. This design is intended to work with an active-front-end (AFE) converter that adjusts the input voltage to the DC/DC converter to optimize the system efficiency based on the output (battery) voltage. The range of the DC input is designed to be compatible with both single and three-phase AFE systems while supporting a wide DC output voltage range of 480V-800V. A full bridge CLLC resonant converter with a flexible control scheme; implements frequency modulation; phase shift control; adaptive synchronous rectification and a bridge reconfiguration technique.
Typical applications
- Electric vehicle (EV) on-board (OBC) and off-board fast charging
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | n | L(µH) | ∫Udt(µVs) | VT(V (DC)) | CWW 1(pF) | LS(µH) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-GDT Gate-Drive-Transformer, 1.5:1, 650 µH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-GDT Gate-Drive-Transformer | Turns Ratio1.5:1 | Inductance650 µH | Voltage-µSecond40.8 µVs | Insulation Test Voltage1500 V (DC) | Interwinding Capacitance9 pF | Leakage Inductance2.9 µH | SizeEP5 |