Author Archives: steve bush

Organic photodiodes challenge silicon over wide areas

Large-area organic photodiodes can now offer advantages over conventional silicon photodiodes, particularly noise advantages, according to Georgia Tech, which has solution-processed flexible organic devices in arbitrarily shapes. It claims performance comparable to that of rigid silicon photodiodes in the visible light spectrum, except their response time. “What we have achieved is the first demonstration that ...

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Two dimensional semiconductor shows logic-in-memory promise

Molybdenum disulphide two-dimensional semiconductor memory transistors are possible, and might be used to build logic-in-memory processors using a fabrication process that can be scaled, according to the Laboratory of Nanoscale Electronics and Structures (LANES) at Swiss lab EPFL, which has built a chip around floating-gate fets, similar to those used in flash memory. “The unique electrical proprieties ...

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3D printed EMC shielding and radar absorber

Hexcel has launched an electrically-conductive high-performance thermoplastic for 3D printing using selective laser sintering (SLS). Applications in  EMC shielding, static dissipation and radar absorption are foreseen. Called HexPEKK EM, it is a polyetherketoneketone (PEKK) and carbon fibre composite for flight-ready parts in commercial aerospace, defence and military sectors. Surface resistivity is ~8×104Ω/sq and volume resistivity ~4×103Ωcm. ...

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External fan saves space inside equipment racks

Pfannenberg has created a series of external fans to save space inside equipment racks. “Datawind Filterfan has been designed specifically for IT racks with rails that get in the way of a traditional filterfan, and removes the need to sacrifice rack space to achieve needed cooling,” according to the company. The fans are certified for ...

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400W medical PSU gets seven output options from 12V to 48V

TDK has added a wider choice of output voltages to its CUS400M range of 400Wmax medical power supplies, originally only available in 12V or 24V. The new options 15, 19, 28, 36 or 48V. 400W is available with forced cooling (30 minutes, 40°C ambient, 230Vac in, 50% duty). “The duration period of that peak is considerably ...

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Hall sensor for measuring currents in automotive

Melexis has introduced a Hall-effect current-sensing IC aimed at cost-sensitive automotive applications: belt-driven starter generators and traction inverters for low-speed electric vehicles, e-scooters, electric forklift trucks and pallet trucks. Called MLX91211, it is used with a ferromagnetic core around a conductor to generate an analogue output proportional to the current flowing in the cable or bus bar. ...

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Metal sensor works equally well on iron and aluminium for automated welding

Omron has a series of welding proximity sensors that can identify iron and aluminium at the same distance. “Previous full metal proximity sensors have struggled to differentiate efficiently between these metals because the sensing distance for aluminium is shorter than that for iron. This makes the design, start-up, and maintenance of production lines complicated,” according to ...

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Second giant grid battery to be built in Australian

With Tesla, French power firm Neoen is to build a 300MW 450MWh grid battery in the Australian state of Victoria, double the size of the already huge Hornsdale Power Reserve in South Australia, also owned and operated by Neoen. Tesla Megapack right Called the Victorian Big Battery, it will be installed in in Geelong next to Moorabool terminal ...

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Panasonic shrinks 60A relays for automotive

Panasonic has miniaturised 60A automotive relays into 17.8 x 13 x 16mm housings. Called the TT series, they supporting switching 60A at 14Vdc (NO contact) and have double make 2 Form A (1 Form U) contacts – and are tailored to smart junction boxes throughout a vehicle. “Those state-of-the-art junction boxes”, said Panasonic’s’ Michael Immle, “are a downright ...

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Green Hills teams with Sectigo for embedded TCP/IP security

Green Hills Software has signed a deal with Sectigo to offer Icon Labs Embedded Firewall integrated and optimised with Green Hills’ Integrity RTOS, and its embedded TCP/IP v4/v6 host and router networking stack. “Most cyber attacks on embedded systems remain undetected until it is too late,” according to Sectigo v-p Alan Grau. “Early detection is critical as ...

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