Author Archives: steve bush

Quantum chip solves ‘travelling salesman’ problem for 22 cities

Tokyo University of Science researchers have built a chip-based quantum annealing processor that can solve the classically thorny ‘travelling salesman’ mathematical puzzle, which gets far more complex every time a new city is added, for up to 22 cities. According to the university, this is “something that would take about 1,200 years for a high-performance von ...

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Deeply-on-chip magnetics make agile PCUs and slash PCB footprint

New York-based fabless chip firm Ferric has teamed up with TSMC to put magnetic components on the metal layers of integrated circuits. The first product of the collaboration, Fe1038D, has a 2.0 x 3.2mm flip-chip die (<400μm thick) that includes all magnetics and passives needed to deliver 3A at between 0.6V and 1.5V from 1.8V-2.5V, with efficiency peaking ...

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Isolated current sensors are fast for motor control

New Zealand based Raztec is offering open-loop current sensors that work up to 250A but are only 10mm across. Called RAZC, there are multiple devices, sensing between 40Amax and 250Amax, all with a 10mm outside diameter, and the manufacturer offers custom versions as well. Bandwdth is generally in hundreds of kHz (see table below) and the ...

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Molybdenum sulphide transistor is non-volatile

Researchers from the Moscow Institute of Physics and Technology (MIPT) have grown atomically thin films of molybdenum disulfide over much of a 100mm wafers, and built a transistor from the material. Like graphene, molybdenum disulfide can be created in a mono-layer. Unlike graphene, which is a conductor, MoS2 is a semiconductor with a bandgap. “Each ...

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Thermoplastic for extreme environment connectors

Pennsylvania-based Greene Tweed is offering a thermoplastic to connector makers that can operate above 460°C. PEK (left) and 3000 XT connectors (right) Called Arlon 3000 XT, is is said to provide thermal stability, chemical resistance, low moisture absorption, low wear and high impact resistance. It is “the world’s first and only cross-linked, semi-crystalline polyketone and delivers ...

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Cisco, Autodesk, Osram and TSMC amongst world’s sustainable companies

Amongst the worlds companies, Cisco is the fourth most sustainable, CAD company Autodesk fifth and semiconductor-maker Osram is not far behind, while TSMC is 25th, according to the ‘Global 100 Index’, collated annually by Canadian research company Corporate Knights. “For the second time in a row Osram made it into the Global 100 Index. Among ...

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Peltier units shift up to 60W

CUI Devices has added two Peltier cooling units to its thermal management range. These are 70 x 70mm closed assemblies rather than open types. “As complete Peltier cooling units, the models feature a tighter seal structure for water resistance and absorption of thermal stress as well as easy installation,” Called CPM-2C and CPM-2H, they are ...

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Electro-optic beam-steerer is easy to make, ‘3D’ displays could follow

Surface acoustic waves can be used to steer laser beams, in ways that could lead to glasses-free ‘3D’ displays, according to the Charles Stark Draper Laboratory in Massachusetts. The proof-of-concept device has been made using techniques that could be scaled for production, according to Draper research engineer Gregg Favalora: “We can report the first demonstration, ...

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Driver handles 750V IGBT gates for automotive

Power Integrations has AEC-Q100 automotive-qualified an isolated gate driver for 750V-rated IGBTs. Called SID1181KQ, the device used the firm’s high-speed FluxLink isolation technology, which is based on bond wires and chip-packaging polymer. It “dramatically improves the reliability and isolation capability of gate drivers, replacing optocouplers and capacitive or silicon-based inductively coupled solutions,” claimed the firm. De-saturation monitoring ...

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Current clamp with slim-line jaw

Voltcraft VC-337 is a slim-jawed current clamp optimised for measurements in control cabinets with terminal blocks and narrow cable spacing. “While the wire to be measured has to be pulled out of the cable duct when using other current clamps, the VC-337 simply grips between adjacent wires. This is possible because the measuring gap of ...

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