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Monthly Archives: March 2020

Covid-19 3d printable mask approved – only for MJF printers, files available

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The Czech Republic has certified a 3D printed anti-covid-19 mask, as a half-mask with FFP3 safety level to EN 140:1999 when using exchangeable external filters. Designed at the Czech Technical University in Prague, by its Institute of Informatics, Robotics and Cybernetics (CIIRC CTU), the part is called ‘CIIRC RP95-3D’ and has to be printed on a ‘multijet fusion’ (MJF) printer. Manufacturing ...

How Long, O Lord, How Long?

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How long is it going on for? Everyone seems to have a different view on how much longer infections and deaths will rise, how long it will be before social restrictions are lifted and how long before normality resumes. Nowhere more so than in America where there are more infections than anywhere. Gallup polled 1,020 U.S. adults about expected disruption ...

Huawei hits back at US

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Huawei’s chairman Eric Xu warned the US government against its anti-Huawei measures when he presented the company’s annual report earlier today. “The Chinese government will not just stand by and watch Huawei be slaughtered on the chopping board,” said Xu, “why wouldn’t the Chinese government ban the use of 5G chips or 5G chip-powered base stations, smartphones and other smart ...

What I was doing before I was rudely interrupted

Before movements were restricted, I was working on a test rig to spin up a bicycle dynamo on the bench. The cobbled-together opto-coupler is part of it, as was the need to design some involute gears, and the rekindled interest in phase-locked loops. Here it is so far (right)  And I am very proud of how it has come out. ...

Melexis launches hall-effect sensor IC for electric power-assisted steering

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Melexis has launched the MLX91377 hall-effect sensor IC, designed for use in automotive applications such as electric power-assisted steering. With an operating temperature between -40℃  and 160℃, the firm says the device combines high linearity with excellent thermal stability, including low offset and sensitivity drift. It’s been developed as a safety element out of context (SEooC), and complies with the ...

Three 200Vdc models added to TDK programmable DC PSU series

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TDK has announced the introduction of three 0 – 200V, 19” wide, rack-mount, programmable DC power supplies. These additions to the firm’s Genesys+ series are available with output power levels of 5kW, 10kW and 15kW. The 200V models are designed for testing solar panels, semiconductor fabrication, battery charging, DC motor control, heaters and process control applications. All models in the ...

Renesas MCUs for motor inverter control

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Renesas has launched the RX13T Group of 32-bit MCUs to enable inverter control of compact motors such as fans or pumps in consumer and industrial applications that previously controlled motor operation through on-off switching. This includes factory equipment where energy efficiency is a priority such as water discharge, supply pumps, or cooling fans for data sensor servers; and cordless, battery-powered ...

Samsung to give up LCD production

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Samsung will end LCD production by the end of the year to concentrate on producing quantum dot displays. Over-production and falling demand have driven the decision. LG has already announced it will also be stopping LCD production this year. “We will supply ordered LCDs to our customers by the end of this year,” says Samsung. Samsung has one LCD plant in ...