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wolfspeed

Next-gen SiC diode targets renewable energy, EVs

January 17, 2019 By Aimee Kalnoskas Leave a Comment

1700V C5

Wolfspeed, A Cree Company, has introduced the 5th generation (C5D) 1700V SiC Schottky diode, which is optimized for renewable energy, industrial power and electric vehicle charging applications including solar power and wind turbine inverters, off-board chargers and uninterruptible power supply (UPS). The 1700V C5D is commercially available in both bare die and package formats, providing designers […]

Filed Under: diodes, Power Components Tagged With: cree, wolfspeed

SiC MOSFETs, diodes are automotive AEC-Q101 qualified, PPAP capable

August 3, 2018 By jzavoda@wtwhmedia.com Leave a Comment

e-series

Wolfspeed announces E-Series, a new family of robust SiC semiconductor devices for the Electric Vehicle (EV) and renewable energy markets that delivers the highest available power density and durability for on-board automotive power conversion systems, off-board charging, solar inverters and other outdoor applications. Wolfspeed’s E-Series family is the first commercial family of SiC MOSFETs and diodes to be […]

Filed Under: Power Components, Semiconductor Tagged With: wolfspeed

The benefits of silicon carbide in dc/dc converters

August 1, 2018 By Lee Teschler Leave a Comment

Adil Salman from Wolfspeed recently shot a video with us covering a silicon carbide charging circuit demonstration. The charger used Wolfspeed SiC MOSFETs. It had two stages. One is a PFC (power factor correction) stage, the other is an LLC converter stage. If you were to try building a similar charger with silicon IGBTs, you […]

Filed Under: Converters, Featured, MOSFETS, Power Components Tagged With: wolfspeed

New 1.2-kV SiC Schottky diodes feature more creepage and clearance

February 22, 2018 By Aimee Kalnoskas Leave a Comment

1.2-kV SiC Schottky diodes

Wolfspeed, a Cree Company, has expanded its C4D family of 1200V SiC Schottky diodes to introduce three new products in a TO-247-2 type package. The increased spacing between the two leads provides more than twice the creepage and clearance distance compared to standard TO-247-3 and TO-220-2 packages. “Improved creepage distance makes the C4D family expansion […]

Filed Under: diodes, Power Components Tagged With: cree, wolfspeed

28-V GaN HEMTs operate to 8 GHz with high efficiency, gain

September 14, 2017 By Aimee Kalnoskas Leave a Comment

Wolfspeed, A Cree Company has introduced a new series of 28V GaN HEMT RF power devices. These new devices are capable of higher frequency operation to 8GHz with increased efficiency and higher gain as well as best-in-class reliability. RF design engineers are now able to build more efficient broadband power amplifiers for commercial and military wireless […]

Filed Under: Transistors Tagged With: cree, wolfspeed

GaN HEMT RF power devices handle 250 W, work up to 3 GHz

August 24, 2017 By Aimee Kalnoskas Leave a Comment

Wolfspeed, A Cree Company and a leading global supplier of GaN-on-SiC high electron mobility transistors (HEMTs) and monolithic microwave integrated circuits (MMICs) with best-in-class reliability, has extended its family of 50V unmatched GaN HEMT RF power devices by adding a 250W part with a frequency range up to 3.0GHz and the highest efficiency of any comparably-rated […]

Filed Under: Power Components, RF Power, Semiconductor Tagged With: cree, wolfspeed

DOE awards $30 million to advance new class of high-performance power converters

August 23, 2017 By Aimee Kalnoskas Leave a Comment

The U.S. Department of Energy’s (DOE) Advanced Research Projects Agency-Energy (ARPA-E) today announced $30 million in funding for 21 innovative projects as part of the Creating Innovative and Reliable Circuits Using Inventive Topologies and Semiconductors (CIRCUITS) program. CIRCUITS project teams will accelerate the development and deployment of innovative electric power converters that save energy and give the United States a critical […]

Filed Under: Converters, Power Supply News Tagged With: cree, eaton, infineontechnologies, wolfspeed

SiC MOSFET reference design details totem-pole PFC topology hitting 98% efficiency

August 12, 2017 By Aimee Kalnoskas Leave a Comment

Wolfspeed, a Cree Company, has advanced the development of high efficiency data center power supplies through the implementation of an innovative totem-pole PFC topology that employs its latest low-inductance SiC MOSFETs to exceed an 80+ Titanium rating, which is critical for reducing the overall power consumption for data centers, estimated to be more than 70 […]

Filed Under: MOSFETS Tagged With: cree, wolfspeed

50-V GaN MMICs handle D-Day radar apps

May 24, 2017 By Aimee Kalnoskas Leave a Comment

Wolfspeed, A Cree Company has introduced two new GaN MMICs, the first 50V GaN devices specifically designed for S-band radar (2.7–3.5GHz) applications. These new 50V GaN MMICs enable radar systems designers to reduce time to market with a less costly, less complex, 50V power amplifier line-up, while delivering the most efficiency possible. With a best-in-class combination […]

Filed Under: RF Power, Transistors Tagged With: wolfspeed

Power modules pass high humidity/temperature/voltage tests for extreme environments

May 16, 2017 By Aimee Kalnoskas Leave a Comment

Wolfspeed, a Cree Company, has released the industry’s first power module that passes the harsh environment qualification test for simultaneous high-humidity, high-temperature and high-voltage conditions. This reliability benchmark enables system designers to use this device in outdoor applications such as transportation, wind, solar and other renewables where extreme environmental conditions have historically challenged safe device […]

Filed Under: Power Supplies Tagged With: cree, wolfspeed

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