New twist on old technique could extract electricity from low-grade heat

Pyroelectricity could extract energy from heat sources below100°C, offering an alternative to thermo-electric generators (TEGs). TEGs make electricity through the Seebeck effect, where different conductive materials in contact develop a potential difference across the contact point. Pyroelectric materials, in contrast, develop a potential across a crystal of one material due to electrons shifting as a ...

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Waterproof wire-to-wire connectors for up to 6A

Squba is a 1.80mm-pitch sealed wire-to-wire connector system from Molex, designed to fit in small spaces and provide protection against liquid, dust and dirt. The connectors carry up to a 6A and provide an IP67 NEMA rating on the seals – seals are retained with caps to provide manufacturers of sensors, lighting, vending machines and ...

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Eval kit for blood pressure wearables

Renesas has launched a blood pressure monitor evaluation kit including a circuit board, pressure sensor, arm cuff, pump, electronically-controlled valve, LCD panel and software. The PCB is based around a dedicated RL78 core-based chip (RL78/H1D) that includes the analogue functions needed for blood pressure measurement. Reference software is included, as is graphical user interface (GUI) ...

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2.5A 5kV isolated gate driver is just 2.3mm high, with 8mm creepage

Toshiba’s TLP5832 gate driver photo-coupler delivers 2.5A peak output current from an SO8L package only 2.3mm high – approximately 50% lower than the firm’s current SDIP6 and DIP8 packages. “In spite of its small size, the IC offers an isolation voltage [BVS] of 5,000Vrms and guarantees creepage and clearance distances of minimum 8.0mm, making it suitable for applications ...

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Nordic supports concurrent Zigbee and Bluetooth for smart homes

Nordic Semiconductor has a Zigbee protocol stack to its nRF52840 multi-protocol system-on-chip, which now supports concurrent Zigbee and Bluetooth (5.0 and LE) operation. “Nordic’s multi-protocol solution for nRF52840 enables use cases that take advantage of several wireless technologies,” according to the firm. “Examples include interaction with a Zigbee smart lighting network from a smartphone via ...

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Farnell element14 adds 160MHz ARBs from Aim TTi

Farnell element14 has added  Aim TTi TGF3000 series of dual channel arbitrary function generators to its instrumentation range. The TGF3000 series initially consists of two models, the TG3082 (dual channel, 80MHz, 14 bits / 400MS/s) and TG3162 (dual channel 160MHz, 16 bits / 800MS/s), with two channels that can operate as independent generators or in ...

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Large hadron collider beams – made in Switzerland, monitored by Germans

Over 140 digitiser cards from Spectrum Instrumentation are being used to protection systems in the Large Hadron Collider (LHC) at CERN. The needle-like particle beams within the LHC contain huge amounts of energy – 350MJ, about as much as the Flying Scotsman at full speed – and cannot simply be turned off. Instead, each is ...

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Renesas develops blood pressure evaluation kit

Renesas is selling a blood pressure monitoring evaluation kit including a pressure sensor, arm cuff, pump, electronically controlled valve, LCD panel, and a reference board that incorporates an RL78 MCU-based ASSP  that includes analogue functions required for blood pressure measurement. Reference software and graphical user interface (GUI) development tool are also part of the new evaluation ...

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Intel closes New Devices Group

Intel is closing down its New Devices Group, which developed AR  and  wearables. “Intel is continuously working on new technologies and experiences. Not all of these develop into a product we choose to take to market,” said Intel. Intel’s  AR spectacles, Vaunt, will not now be marketed. “We are going to take a disciplined approach ...

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