Author Archives: steve bush

IP68 connectors for high-end applications

CamdenBoss announced a premium range of IP68 circular multi-pole connectors at the Southern Manufacturing Exhibition in Hampshire. For use in broadcasting, military, energy, marine, food processing, industrial, automotive, autosport, medical, oil, gas, rail, robotics and security, the CamCirc range features contact configurations from 2 to 19 poles in various body sizes and styles. “Offering a rugged, ...

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Mains filters get over-voltage varistor

Schurter has added an over-voltage protection option to its Fmab Neo family of filters, especially for regions with many thunderstorms. “Overvoltage pulses, for example lightning, often have a devastating effect on electronic circuits,” said the firm. “This can range from malfunctions to complete destruction. In response to customer requests, Schurter has extended its Fmab Neo ...

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Chip integrates USB Type-C power delivery

UPD360 is a USB Type-C Power Delivery (PD) Port Controller from Microchip, designed to the USB Type-C Cable and Connector Specification and USB Power Delivery 2.0 Specification. It provides cable plug orientation and detection for a USB Type-C receptacle and implements baseband communication with a partner USB Type-C device via the integrated USB Power Delivery ...

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2-d hole gas finally demonstrated

Two-dimensional electron gas clouds are used in electronic devices – they are the reason GaN transistors conduct so well. But where is the long-postulated two-dimensional hole gas? The answer is: it is where Professor Chang-Beom Eom and his team made it, at the University of Wisconsin-Madison. “The 2D hole gas was not possible primarily because ...

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Curved image sensor simplifies down-stream optics

French semiconductor research lab Leti has found a way to make curved image sensors that simplify associated optics. The demonstration is based on a 1/1.8’’ format, 1.3Mpixel CMOS image sensor. “The standard sensor structure consists of a 7.74 x 8.12 mm silicon die glued on a ceramic package,” said Leti. “Electrical connections are wire bonded ...

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Updated: Perovskite solar cells that lasts in air

Perovskits solar cells have gone from nothing to 23% efficiency in a decade, but they are fragile in air. Now researchers at the US Department of Energy’s National Renewable Energy Laboratory (NREL) have made perovskite cells that, without protective encapsulation, retain 88% (+/-4%) of their 12.2% starting efficiency after 1,000 hours exposure to air, moisture ...

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THz solar antennas instead of solar cells

Rather than splitting an exiton across a p-n junction, why not receive light like radio waves, with an antenna and a diode? That is the thinking behind a project at Georgia Tech, which has produced a class of devices called rectennas. The first optical rectenna was produced in 2015, now the Tech is reporting a ...

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Optical modulator has no output offset

Researchers at the University of Pennsylvania have created a an optical second-harmonic generator with no background output – second harmonic output can be varied from zero upwards. It consists of an 8μm long strip of cadmium sulphide with source and drain electrodes (one Ohmic, on Schottky) – see diagram. Incoming light was between 680 and ...

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Amateur finds lost NASA satellite

An amateur astronomer has found a lost NASA satellite, now confirmed as Imager for Magnetopause-to-Aurora Global Exploration (IMAGE), launched in on March 25 2000. NASA’s Goddard Space Flight Center in co-ordinated five separate antennas to acquire radio frequency signals from the object. “As of Monday, Jan. 29, observations from all five sites were consistent with ...

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Acceleration sensor counts steps for 4μA

BMA400 is a low-power acceleration sensor for wearables and IoT applications from Bosch, consuming as little as 4μA in step-counter mode. “Due to continuous measurement, the sensor’s high-quality measurement signal has precisely defined cutoff frequencies, making it very resistant to vibrations,” said the firm. claiming that this is particularly useful in smart home security systems ...

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