NCV30161 is a dc-dc converter intended to drive leds with a continuous current – albeit with a superimposed triangle wave. It is a buck converter – slightly up-side-down because it has its switch on the negative side. There is no output capacitor, and the inductor and the leds are in series, so they both get the same current at all ...
Ideal Power is aiming to compete with smart IGBT modules, with a 1.2kV 160A (100°C, 240A at 25°C) power module built around its novel ‘B-Tran’ bi-direction semiconductor switch. Called IPA01216DFx-HS, it comes in an industry-standard 62mm package which includes an isolated driver circuit and “has significant advantages compared to IGBT modules, including lower losses and inherent bidirectionality”, according to the ...
Ideal Power has launched the first commercial version of its novel bi-directional semiconductor power switch, a multi-die module rated at 1,200V 100A (25°C, 50A 100°C) aimed at solid-state circuit breakers (SSCBs) and matrix converters. Updated below to include driving requirements Called IPAM01210C10, “the power module was designed specifically to enable SSCBs to deliver very low conduction losses, while operating orders ...
A priceless Korean medical encyclopaedia, first published in 1613, is now available for the public to interact with virtually the National Library of Korea Compiled by royal physician Heo Jun, the originals are locked away for safe keeping, but a high-resolution scan has been animated on a novel display surface by Seoul-based company Ubidus. “Many companies have developed digital books ...
Engineers at Lancaster University have transmitted, received and decoded data sent over a stream of fast neutrons. The proof-of-concept involved modulating neutrons from a calfornium 252 source using an Arduino-controlled mechanical shutter built from high-density polythene. Detection involved a one litre tank of scintillating meterial, a photo-multiplier and a ‘mixed-field analyser’ (made by Hybrid Instruments, based at the university) to separate ...
Announced yesterday, researchers from Surrey and Cambridge universities and the National Research Institute in Rome have used thin-film source-gated transistor (SGT) to create compact analogue circuit building blocks that can be used on flexible substrates. Source-gated transistors – SGTs – are uni-polar – they only need n or p-type semiconductor, not both. The research team built two two-transistor building blocks: ...
A Japanese research engineer has created a thin flexible wireless charging array that can be cut to size with scissors in almost arbitrary ways. “You can do more than just cut this sheet into fun or interesting shapes,” said Ryo Takahashi of the University of Tokyo. “The sheet is thin and flexible so you can mold it around curved surfaces ...
How will Intel’s second attempt at a smartphone pan out?
The strangest proposal ever put to a VC has to be the one put to Tom Perkins, co-founder of Kleiner Perkins Caufield and Byers, the premier Silicon Valley VC company.
A novel architecture that allows a Si/SiGe amplifier to provide 26-30dB of gain at 100GHz - which is claimed to be a record by the University of California, San Diego - was unveiled this week at the International Solid-State Circuits Conference (ISSCC) in San Francisco.
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