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Industrial

Low Voltage Motor Drives

Wolfspeed silicon carbide meets efficiency standards while enabling smaller, lighter, more efficient industrial low voltage motor drives.

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Wolfspeed silicon carbide enables embedded motor drives

Electric motors, including industrial low voltage drives, account for more than 50% of all electricity used in industry globally. Traditionally, industrial low voltage motor drives were designed with the motor and drive in separate housings and connected by a long cable, resulting in poor motor reliability or increased cost from needing output filters, wasted power and lower overall system efficiency.  ​

Today silicon carbide is enabling a shift to embedded motor drives where the drive and motor are combined into one smaller unit. Combining motors and drives can reduce overall system cost by 20-40% and improve drive efficiency by up to 2.6% so motor manufacturers can achieve IE3 and IE4 efficiency standards.


Reach IE4 efficiency standards with Wolfspeed 650 V MOSFETS

Achieve IE4 efficiency standards with Wolfspeed’s 650 V MOSFETs. For example, in an 11 kW, 8 kHz system upgrading to a semi-bridgeless Totem Pole-PFC and replacing IGBTs in the inverter with drop-in silicon carbide MOSFETS yields:​

  • 2% efficiency improvement​
  • 220 W reduction in losses​
  • Meets IE4 efficiency standards.

Redesigning the PFC using a bridgeless totem pole topology and upgrading the inverter with silicon carbide MOSFETs improves efficiency even more to 2.4% while maintaining IE4 standards. ​

When compared to high-speed, soft-switched IGBTs, Wolfspeed 650 V MOSFETs offer drastically lower conduction losses and almost no switching losses, significantly improving the performance of embedded industrial motor drives. ​


Reduce motor drive size while boosting efficiency at higher temperatures with WolfPACK™

Wolfspeed WolfPACK Baseplate-Less SiC Power Module

Six-pack Wolfspeed WolfPACK™ power modules enable superior performance and system efficiency. When compared to leading IGBT solutions in a 25 kW inverter system, the WolfPACK™ achieves 1.1% higher efficiency with a 77% smaller heat sink (0.31 L vs 1.37 L). ​

Conversely, the WolfPACK can run at higher loads with smaller heat sinks, allowing designers to design embedded drive systems that are smaller and lighter and require up to 77% smaller heat sinks. Even at a higher 16 kHz switching frequency with the same heat sink,  silicon carbide remains thermally stable and outperforms silicon IGBTs.


Quickly evaluate your designs with the NEW 25 kW FM3 Three-Phase Inverter 

Wolfspeed Power Reference Design CRD25DA12N-FMC 25 kW Inverter
Wolfspeed’s new CRD25DA12N-FMC was developed with industrial motor drive designers in mind.

Designed to target industrial motor drives, Wolfspeed’s new 25 kW FM3 Three-Phase Inverter reference design provides comprehensive support to early SiC design-in activities. CRD25DA12N-FMC enables quick performance evaluation out of the box as a simple three-phase inverter topology. The flexibility of the generic power stage makes it simple to adapt to other applications, making it an ideal solution to evaluate or scale up power levels in industrial motor drives. This design features Wolfspeed’s 21 mW  six-pack WolfPACK™ module with pre-applied TIM and achieves peak efficiencies over 99.5%, power density of 5.7 kW/L, and 30 Arms capable of up to 100 kHz switching frequency.

New Whitepaper & Webinar on Demand

Benefits of Designing with Wolfspeed Silicon Carbide in Low Voltage Motor Drives

Stock image of multiple Industrial Low Voltage Motor Drives in action representing Wolfspeed's Silicon Carbide (SiC) parts being used in industrial low voltage motor drives designs.

Wolfspeed evaluates SiC in industrial low voltage motor drives at three different power levels to evaluate efficiency improvements, and compares improvements realized when smaller heat sinks are combined with SiC.

Read the Article

Model silicon carbide efficiency with SpeedFit™​

Illustrated line drawing of a Wolfspeed Drive

Maximize industrial low voltage motor drive efficiency when you simulate with SpeedFit Design Simulator, the first step to selecting the right devices for your design. Our online simulation tool offers an easy-to-use interface for evaluating Wolfspeed’s silicon carbide MOSFETs, diodes and power modules many power topologies. Start simulating today and harness the power of Wolfspeed silicon carbide in your industrial motor drives.

Simulate Now​

Wolfspeed Silicon Carbide Components for Industrial Low Voltage Motor Drives​

Wolfspeed’s products represent the culmination of years of experience and expertise, where quality meets innovation to help bring your design forward. ​

Discrete Silicon Carbide MOSFETs

Discrete Silicon Carbide MOSFETs

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Discrete Silicon Carbide MOSFETs

Product SKU
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Data Sheet
CAD Model
Blocking Voltage
RDS(ON) at 25°C
Generation
Current Rating
Gate Charge Total
Output Capacitance
Total Power Dissipation (PTOT)
Maximum Junction Temperature
Package
Qualification
C3M0075120K
1200 V
75 mΩ
Gen 3
32 A
51 nC
58 pF
113.6 W
150 °C
TO-247-4
Industrial
1200 V
75 mΩ
Gen 3
30 A
51 nC
58 pF
113.6 W
150 °C
TO-263-7
Industrial
1200 V
40 mΩ
Gen 3
64 A
61 nC
94 pF
272 W
150 °C
TO-263-7
Industrial
650 V
15 mΩ
Gen 3
120 A
188 nC
289 pF
416 W
175 °C
TO-247-4
Industrial
650 V
45 mΩ
Gen 3
47 A
61 nC
101 pF
147 W
175 °C
TO-263-7
Industrial
650 V
60 mΩ
Gen 3
36 A
46 nC
80 pF
136 W
175 °C
TO-263-7
Industrial
1200 V
32 mΩ
Gen 3
68 A
111 nC
133 pF
277 W
150 °C
TO-263-7
Industrial

Discrete Silicon Carbide Schottky Diodes

Discrete Silicon Carbide Schottky Diodes

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Discrete Silicon Carbide Schottky Diodes

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Total Capacitive Charge (QC (typ))
Total Power Dissipation (PTOT)
Package
Qualification
1200 V
10 A
Gen 4
1.5 V
10 A
52 nC per leg
170 W
TO-252-2
Industrial
650 V
16 A
Gen 3
1.5 V
16 A
44 nC
150 W
TO-220-2
Industrial
650 V
16 A
Gen 6
1.27 V
16 A
29 nC
100 W
TO-247-3
Industrial

Silicon Carbide Power Modules

Silicon Carbide Power Modules

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Silicon Carbide Power Modules

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FM3
Six-pack (three-phase)
1200 V
30 A
32 mΩ
Gen 3 MOS
150 °C
62.8 mm x 33.8 mm
Industrial

Reference Designs

Reference Designs

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Reference Designs

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CRD-22AD12N
22 kW Bi-Directional Active Front End (AFE)
AC to DC
Three-Phase, 2-Level
22kW
Discrete
TO-247-4
Wolfspeed
CRD25DA12N-FMC
25 kW FM3 Three-Phase Inverter
DC to AC
Three-Phase, 2-Level
25kW
Module
FM3
Wolfspeed

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Simulate Designing Industrial Motor Drives with SiC using SpeedFit™ Design Simulator

Use the SpeedFit™ Design Simulator to design smaller and quieter industrial motor drive systems including industrial low voltage motor drives, servo drives, and compressors for heat pumps and air conditioners.
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