- EV auxiliary motors
- Heat pumps and air conditioning
- Industrial motor drives
20 kW High Efficiency Three-Phase Motor Drive Inverter
CRD-20DA12N-K
This reference design demonstrates how to use silicon carbide (SiC) MOSFETs to optimize the performance of a motor drive for auxiliary motors in electric vehicles, as well as Heating Ventilation and Air Conditioning (HVAC) and other similar applications. Utilizing SiC MOSFETs for these applications can increase system efficiency, reduce audible noise, and increase power density compared to silicon solutions. Although SiC MOSFETs are capable of achieving very high dv/dt switching transitions, the speed can also be easily controlled with the gate resistor to lower levels that are compatible with standard motor insulation while still achieving lower switching losses than silicon IGBTs.
The Design Accomplishes:
- Peak efficiencies of 99.4%, full load efficiency of 98.9%
- Wide operating voltage range
- Closed-loop sensorless field oriented control
Specifications:
- Input Voltage: 550 – 850 VDC
- Switching Frequency: 16 – 32 kHz
- Nominal RMS Output Voltage: 380 VL-L
- Output Power: 20 kW
- Short circuit protection
- Bus derived auxiliary power supply
- Open loop mode for static testing
- Sensorless FOC for permanent magnet synchronous machine (PMSM)
- CAN interface to PC based user interface
Applications
What's Included
Design Files for:
- Main board
- Controller Board
- Aux Power Board
Request Separately
- and GUI
- Mechanical Specifications
Product Compatibility
Documents, Tools, & Support
- Block Diagram
- Efficiency Results
- Technical & Sales Documents
- Tools & Support
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Knowledge Center
The Silicon Carbide Landscape and Advantage
Wolfspeed’s silicon carbide expert Guy Moxey kicks of Wolfspeed’s 2024 Designer’s Guide by exploring the proliferation of silicon carbide across applications, including electric vehicles, industrial motor drives and e-mobility, and ways Wolfspeed is meeting growing global demand.
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Silicon Carbide Device Modeling
Learn how designers new to silicon carbide can leverage Wolfspeed’s design support tools to generate models that solve system design challenges. During this session learn which Wolfspeed design tools are best suited to your application.
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Care Abouts and Proper Selection of Gate Drive Solutions for Silicon Carbide
Explore some of silicon carbide’s unique gate drive requirements, potential Wolfspeed solutions, and trade-offs to each.
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