Author Archives: steve bush

Link Microtek designs and manufactures complex microwave assemblies

Hampshire-based Link Microtek designs and manufactures microwave and RF subsystems and components. Its latest project has been a complex microwave feed assembly for a customer’s Ku-band mobile satellite-communications antenna system. It interfaces with the system’s transmit amplifier, conical feed horn and receive LNB, and incorporates a feed arm, transmit filter, receive filter, rotary joint and an ...

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UK pop-up EV charging point saves street clutter

Cheltenham-based design company Duku has developed a pop-up electric vehicle charge point, claiming it to be a world first. Six of them are on trial in Oxford. A pop-up design was adopted to reduce street clutter, but the amount of historical architecture and utilities under Oxford pavements meant minimal available underground space. “It’s an absolute mess ...

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Mapping on-line hate reveals team work is the only useful countermeasure

Policing on-line hate from within a single platform, such as Facebook, can make the spread of hate worse, and will eventually generate global ‘dark pools’ in which hate will flourish, is one of the findings the finding in a recent scientific paper in Nature. The paper was written after analysis using a “first of its ...

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Mems optical phased array forms beams suitable for automotive lidar

Micromachining can be used to create a infra-red beam-forming phased array, according to engineers at Berkeley University of California who have made a 160 x 160 array on a 3.1 x 3.2mm die that can be switched in 5.7μs (resonance is at 55kHz). “It is capable of providing about 25,600 rapidly steerable spots within its ...

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X-capacitor discharger for IEC60335 home appliances works up to 6µF, and wastes

Power Integrations is aiming at larger home appliances needing to meet IEC60335 with an X-capacitor discharger that can empty 6µF in under a second. X-capacitors are part of the EMC input filter of power supplies (see diagram right), that are essentially connected directly to the appliance’s mains plug and, uncontrolled, are left with up to ...

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More on: GaN at Power Integrations

At the end of July, Power Integrations revealed that it has been quietly using GaN power transistors  in some of its products for months. This followed the work of analyst TechInsights, which de-capped an InnoSwitch3 IC from the PI and found a GaN part inside. Shortly after this, now armed with the correct search terms, it became ...

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Thin phobic layer neatly guides metal deposition for sensors and solar cells

Metal film features from 1μm to 10cm across can be formed by a process developed at the University of Warwick, which exploits the characteristics of a cheap organofluorine compound, and needs no toxic chemicals. It is a vacuum deposition process that works with copper and silver, and exploits the different ‘condensation coefficient’ (‘C’) of two materials. ...

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Fast high-voltage PSU for Pockels cells

Highland Technology of San Francisco has released the model T850 driver for Pockels cell optical modulators. Pockels cells are fast high voltage devices with a capacitive load characteristics. “T850 incorporates a new architecture that greatly increases electrical efficiency and reduces driver size and cooling requirements,” according to the firm. “The 7.5ns electrical output pulse is ...

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Edge computer gets second Ethernet interface

Harting has added a second Ethernet interface to its Mica Edge computer. “With many Industry 4.0 applications, it is necessary to separate networks and send data back and forth between Ethernet protocols without permitting external applications direct access to a corporate network,” according to the firm. “As a result, Harting has added a second interface ...

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