Cree, Inc., a global supplier of silicon carbide (SiC) and gallium nitride (GaN) wafers and devices, has extended its family of 50V discrete GaN high electron mobility transistor (HEMT) die with the release of three new components: a 20W, 6GHz die; a 75W, 6GHz die; and a 320W, 4GHz die. Currently comprised of five die, […]
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America Semiconductor introduces high-power standard recovery rectifiers in DO4 package
DO4 Stud Devices Optimized to Provide Reliable and Efficient Power Solutions to a Variety of High-Reliability Industrial Applications America Semiconductor, LLC, a leading manufacturer of state-of-the-industry high-power semiconductors, announced the availability of a new full series of high-power standard recovery rectifiers in a DO4 package. Offered in stud cathode and stud anode versions, the parts […]
Podcast: Designing with SiC power semiconductors
Not all design parameters for SiC semiconductors can be found on data sheets. Madhu Chinthavali, team lead for Oak Ridge National Lab’s Power Electronics & Electric Machinery Group, describes what to look for and what design engineers need to test for themselves when working with SiC power devices. Madhu’s group recently devised a 30-kW inverter […]
Meet the first winner of our eGaN quiz!
When the entries began coming in for our eGaN quiz, we got a surprise: The first entry we looked at had a perfect score! That entry came from Xiucheng Huang. Huang is currently working toward a Ph.D. degree at Virginia Tech’s Center for Power Electronics Systems. It may come as no surprise that Huang’s main research […]
GaN quiz hints!
We’ve extended the GaN quiz to Dec. 21, 2014! And to up the ante, here are a couple of answer hints: Question 6 and 7 ask for the reduction in power loss in the loop inductance for the buck converter circuit by reducing the value of L. To find the impact of L, start […]
Electronic loads handle 1.8 kW
INTEPRO Systems, a market leader in power component and power system automated test equipment (ATE), announces the introduction of its new line of 1800 W modular electronic loads. The ML1800 Series features an 8-inch TFT LCD color display with multiple language selection that is visible across the room. The 6-slot chassis can be specified with […]
Top power electronics posts on electro-tech-online.com
Here are some of the topics getting a lot of notice this week among those posting on our sister site, electro-tech-online.com Relay troubles — “MY relay circuit is very close to being unstable as the relay chatters or clicks open/shut about once or twice a second at certain times. I have measured the pins on […]
Power fail videos of the week — Ouch that hurts
For openers this week, we’ll deviate from our usual theme of power electronics to bring you a video dubbed by its creator, “Worst electrical work ever.” We agree. Heaven help whoever is living in the houses where these monstrosities can be found. Solid state components do, in fact, smoke These guys prove definitively that solid-state […]
300W ultra low profile, slim design sign panel power supply
MEAN WELL is pleased to unveil the ultra low profile, slim design sign panel power supply with up to 300W rated-power, HSN-300 series. HSN-300 series adopts the 31mm ultra low profile design and the width is 81mm only, allowing the dimension and weight of the sign panel module to be lowered, lessening the manufacture cost […]
Pop quiz: Ace our eGaN FET quiz, win a textbook by the eGaN uber guru
So you think you know your power circuits? Prove it! Ace our little quiz on gallium-nitride FET circuit design and you can win your very own signed copy of GaN uber guru Alex Lidow’s GaN Transistors for Efficient Power Conversion, 2nd Edition.Alex Lidow is CEO of Efficient Power Conversion Corp. (EPC) and was CEO of […]