Author Archives: steve bush

Hot-swap data and clock protection for I2C and SMBus, and increased fan-out

Diodes has announced a hot-swap chip for I2C and SMBus connections that prevents the corruption of data and clock lines during hot-swap in rack-based systems – for PCI, cPCI, VME or AdvancedTCA systems, for example. “These critical systems need to deliver upwards of 99.999% availability, which makes prolonged maintenance and unplanned downtime unacceptable,” said the ...

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Heavy duty industrial connectors from RS

RS Components has unveiled a range of heavy-duty industrial connectors – particularly for robotics and machinery, and in sound and lighting applications. Called RS Pro the range includes rugged housings and inserts, that includes screw terminals and cage-clamp terminals with UL approvals – including UL90V0 flammability. Inserts come in contact-number sizes including 3 PE, 4 ...

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Phonon engineering pulls heat from stacked 2D materials

US researchers have found a way to double heat extraction from a transistor made from 2D materials. “In the field of nano-electronics, the poor heat dissipation of 2D materials has been a bottleneck to fully realising their potential in enabling the manufacture of ever-smaller electronics while maintaining functionality,” said University of Illinois at Chicago engineer ...

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Stamp-sized stick-on ultrasound array scans 40mm into body – measures deep blood pressure

Researchers at the University of California San Diego have created a coin-sized flexible stick-on ultrasonic phased-array that allows blood pressure to be measured in arteries below surface layers. The patch is 240μm thick and stretches with strains up to 60%. “Wearable devices have so far been limited to sensing signals either on the surface of ...

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Handheld determines best network operator for IoT and M2M

UK test gear company Siretta has improved its phone-sized portable cellular reception quality analyser and antenna tester, adding data logging and removing the need to pay for a SIM card – the latter without sacrificing function. Called Snyper-LTE Graphyte, it works on 2G, 3G and LTE networks and is intended to be used in the ...

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Tiny gate driver delivers 5A for GaN power, at up to 60MHz

Texas Instruments’ LMG1020 is a fast low-side GaN gate driver in a 1.2 x 0.8mm package that can source 7Apeak and sink 5Apeak from 5V. Typical propagation delay is speedy 2.5ns (4.5ns max) and minimum pulse width is 1ns, allowing operation at up to 60MHz. “The single, low-side driver enables efficient, high-performance designs in speed-critical ...

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Medical connector is easy to operate and can be sterilised

Lemo’s Redel SP connector series is aimed at medical applications. Its plastic shell is made from a proprietary sulfone material and the connector can withstand “extensive sterilisation cycles” according to a company spokeswoman. For instant identification, models are available in different colours (grey, blue, yellow, black, red, green and white), and the system has a built-in ...

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Perovskite solar better with silicon nano-particles

An international research group boosted perovskite solar cells efficiency by adding silicon nanoparticles. Various metal nanoparticles have been tried before, but can have drawbacks such as absorbing energy, or increasing corrosion. In the case of the silicon particles, they don’t absorb light, nor do they interact with other materials in the cell, according to ITMO University ...

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Automotive AEC-Q200 ceramic capacitors stretched to 4kV

Syfer has added higher voltage ceramic capacitors to its AEC-Q200 series of MLCCs, extending maximum working voltage in the series from 2kV up to 4kV. “Designed for electric vehicle applications where ever higher voltages are needed, but where a margin for derating has to be accommodated for, they are ideal for power train use, like ...

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Perovskite-on-CIGS tandem solar cell hits new high

Scientists at UCLA have spray-coated a perovskite solar cell onto thin-film CIGS solar cell to convert energy at 22.4% when the cells are connected in series. Series connection is a tougher test that four-terminal connection, because both top and bottom cells care forced to work at the same current, making it unlikely that both are working ...

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