Skip to Main Content
  • English
  • 简体中文
  • 繁體中文
Contact
View Cart

22 kW Bi-Directional CLLC

Product Shot of Wolfspeed's Reference Design of a 22kW Bi-directional High Efficiency DC/DC Converter
CRD-22DD12N
This reference design demonstrates the application of Wolfspeed’s 1200V SiC MOSFETs to create a 22kW Bi-directional High Efficiency DC/DC Converter for electric vehicle (EV) on-board (OBC) and off-board fast charging applications. The C3M™ series MOSFETs are ideally suited for off-board fast charging, while the automotive qualified E-Series E3M devices are ready for the most challenging on-board applications. 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. The use of 1200V 32mOhm SiC MOSFET’s in a TO- 247-4 package provides the best figure of merit (FOM) while reducing switching loss and cross talk.

The design accomplishes
  • Peak efficiencies of 98.5% in both charging and discharging mode
  • Power densities of 8kW/L
This reference design is offered as a comprehensive design package which can be used as a starting point for new SiC designs.

Specifications

Charging Mode

  • Output Voltage : 480V-800V DC Nominal. System capable of 200V-800V DC
  • At Vin=650V-900V DC ; Output Power : 22kW ; Output current : 36A
  • At Vin=380V-900V DC ; Output Power : 6.6kW ; Output current : 26.4A

Discharging Mode

  • Output Voltage : 360V-750V DC Nominal
  • Output Power : 6.6kW ; Output current : 19A
  • Full bridge CLLC resonant converter operating at 135-250kHz
  • Tooled heatsink to simulate cooling plate
  • CAN interface
Applications
  • EV On-Board Charger
  • EV Fast Charging
What's Included

Reference Design Files for

  • Main board
  • Controller Board
  • Aux
Request Separately
  • Firmware and GUI
  • Mechanical Specifications

Documents, Tools, & Support

crd 22dd12n block diagram
DC-DC Converter

2W Isolated DC-DC Converter Vin=15V, Vout= -3V/15V

DC-DC Converter

2W Isolated DC-DC Converter Vin=15V, Vout= -3V/15V

UCC5350

5A, High Voltage, Isolated Gate Driver with Internal Miller Clamp for Q1, Q2, Q3, Q4, Q7, Q16, Q17, Q18

View Product
UCC5350

5A, High Voltage, Isolated Gate Driver with Internal Miller Clamp for Q1, Q2, Q3, Q4, Q7, Q16, Q17, Q18

View Product
F2837x C2000 real-time microcontroller

MCU with control algorithms for the AC-DC and DC-DC Stages

View Product
Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.
C3M0032120K or E3M0032120K

C3M0032120K
Silicon Carbide Power 1200V MOSFET C3M™ Planar MOSFET Technology N-Channel Enhancement Mode
View Product

E3M0032120K
Gen 3 Discrete Silicon Carbide Power MOSFET E-Series Automotive N-Channel Enhancement Mode
View Product

Technical SupportPower Applications Forum

Knowledge Center

View All
Air Conditioning

Beat the Heat This Summer with Wolfspeed SiC in Residential & Commercial Air Conditioners and Heat Pumps 

Silicon carbide is revolutionizing the heat pump and air conditioning industry by delivering unprecedented efficiency, enhanced durability, and superior performance in the most challenging of environments.
Continue Reading  Technical Articles

Footer

Social Media

  • Instagram
  • X
  • LinkedIn
  • YouTube
Copyright © 2024 Wolfspeed, Inc.