Wolfspeed has long dominated the SiC material space. Today, they are the only fully vertically integrated producer offering everything from growing boules to packaging devices.
Wolfspeed silicon carbide MOSFETs, Schottky diodes and power modules help minimize power losses in systems while creating simpler topologies – while meeting stringent industry and automotive qualifications standards.
High Voltage
Silicon Carbide wide bandgap power devices are revolutionizing high-voltage power electronics. Their high efficiency allows designers to develop more efficient, smaller and lighter systems for renewable energy production, storage applications such as electric vehicle fast charging and other uses.
Wolfspeed’s FM3 silicon carbide modules significantly decrease system losses by accommodating larger current ratings and lower switching frequencies, providing up to 77% less switching loss compared to traditional silicon IGBTs in 1500 V DC bus applications. This enables less components, more compact layout, and an increase in power density of industrial drives.
These high-performance SiC modules feature an AlSiC baseplate for maximum weight savings, as well as a silicon nitride (Si3N4) substrate to ensure mechanical robustness in harsh environments. Furthermore, these SiC modules support up to 175degC continuous junction temperature operation, lower switching losses than comparable IGBTs and 15% greater voltage headroom compared to comparable modules.
Wolfspeed’s automotive-qualified Gen 3 SiC MOSFETs and diodes provide designers with the design flexibility required for high-voltage power electronics applications. Available with various on resistance options, package configurations and power sizes; supported by over three decades of vertical integration manufacturing as well as industry leading testing, screening and parametric characterization processes that yield some of the highest figures of merit available today.
High Efficiency
Wolfspeed’s wide bandgap Silicon Carbide power semiconductors outperform conventional silicon components and set new efficiency benchmarks, making power systems with smaller and lighter heat sinks, simpler circuit topologies, reduced costs and sizes significantly more cost-efficient than before. Our silicon carbide devices allow designers to design power systems with smaller heat sinks while still meeting efficiency goals – an advantage over competing technologies that use silicon components exclusively.
Wolfspeed Silicon Carbide MOSFETs are helping energy storage systems bridge the supply-vs-demand gap while increasing renewable capacity across residential, commercial, industrial and utility markets. Equipped with Wolfspeed’s high efficiency power switches and Schottky diodes for switching efficiency, battery-based energy storage systems incorporating Wolfspeed MOSFETs offer more compact power density storage systems with lower operating temperatures, higher current and voltage capacities and reduced switching losses than their silicon counterparts.
Wolfspeed’s SiC MOSFETs are helping UPS manufacturers meet rigorous efficiency standards while still meeting mission-critical operation needs, while at the same time cutting system costs significantly. Their 2300V modules help manufacturers meet these challenging standards without compromising reliability for mission-critical operations.
Energy-efficient SiC devices form the backbone of electric and hybrid electric vehicles (PHEVs), providing longer driving range per charge, faster charging times, and reduced overall system costs. Our robust Silicon Carbide MOSFETs and Schottky diodes enable these cutting-edge vehicles to reduce CO emissions while reinforcing US clean energy manufacturing leadership.
High Reliability
As power system designers prioritize reliability and long-term performance, Wolfspeed is committed to offering industry-leading SiC devices. Their billion dollar investment in an advanced fabrication facility allows 30x the current capacity to meet future demand.
Wolfspeed’s SiC devices are helping industrial uninterruptible power supplies (UPSs) achieve greater efficiency, lower total system cost and decreased weight. Furthermore, their wide bandgap silicon carbide MOSFETs, Schottky diodes and modules significantly decrease system losses so more of the stored energy can reach load.
Wolfspeed SiC technology has proven itself essential in improving efficiency and reliability in electric buses, light rail trains and heavy duty cargo and delivery vehicles. Wolfspeed’s SiC technology is also being utilized by emerging e-mobility applications like electric vertical takeoff and landing (VTOL) aircraft to reduce weight, extend range and accelerate time to market.
Wolfspeed SiC power devices undergo stringent product qualification testing according to major industrial and automotive standards, such as JEDEC and AEC-Q101, to meet these stringent requirements. These tests include stress tests designed to determine their ability to withstand high drain bias, temperatures, humidity, third quadrant operation and third-quadrant operation, which are all important elements when qualifying them for use in wind, solar or other renewable energy technologies.
Low Cost
Wolfspeed provides grid-tied converters that offer system-level efficiency improvements compared to traditional silicon components by offering SiC discrete devices and modules (both single channel and three phase) tailored for EV and industrial use, including higher switching speeds, greater power density/current capabilities, lower operating temperatures and reduced bill of materials costs for passives. Wolfspeed’s product offerings span from discrete devices and modules (single-channel and three phase), discrete devices and passives (active components) such as SiC discretes.
Electric Vehicles
With battery capacity expanding, electric vehicles require smaller, lighter and more efficient power electronics in order to preserve performance and drive range. Wide bandgap SiC power devices offer numerous advantages including higher efficiency, increased reliability and reduced cooling costs.
Electric Trains and Traction Systems
Electric buses, trains, light rail and heavy-duty delivery trucks use Auxiliary Power Units (APUs) and Traction Power Units (TPUs), but these bulky units tend to incur high thermal losses which make operation and maintenance costs expensive. Wide bandgap SiC MOSFETs improve efficiency while decreasing thermal losses for compact yet robust designs that can meet application-specific specifications.
Wolfspeed stands out in its industry by boasting an 8-inch fab and increasing wafer materials production by 10 times since 2013. These capabilities will enable it to drive SiC’s adoption into key power conversion applications that drive global demand – such as three-phase industrial motor drives, grid-tied solar/wind/hydro projects and uninterruptible power supplies.
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