Author Archives: steve bush

Cathode deals with polysulphde shuttle in Li-S battery

Lithium sulphur cells can retain >95% Coulomb efficiency for 80 charge cycles at >300Wh/kg, according to the Hong Kong University of Science and Technology, which is working on a novel cathode design. The electrochemistry of lithium paired with sulphur (a low-cost material) make the combination desirable for lightweight high capacity batteries, but the elements, so far, ...

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Chip defends USB-C against abuse in vehicles

Diodes is aiming at automotive USB Type-C ports with a four channel protection chip. “There has been increasing adoption of the USB Type-C interface, particularly by automotive manufacturers keen to provide future-proof ports for smart devices and other peripherals,” said Diodes. Called DPO2039DABQ, is is intended to be used in line with the CC1, CC2, and D+ ...

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50MHz precision op-amp has 6.5nV/√Hz input noise

STMicroelectronics has introduced a dual 5V op amp with 50MHz gain-bandwidth product with low input offset voltage and 6.5nV/√Hz input voltage noise. Called TSV792, the op amp is unity-gain stable and has rail-to-rail inputs and outputs. “The typical 50MHz gain-bandwidth product enables accurate amplification of high-frequency signals,” according to the company. “Adding a slew rate of ...

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Solid-state relay has high dV/dt and high blocking voltage

Excel Cell Electronics (ECE) ESR5 series of solid-state relays are available with or without LED Indicators, with ac or dc control inputs, and, separately, with ac or dc-type outputs. “Characteristics include its zero voltage turn-on, zero voltage turn-off to minimise EMI and RFI, and output snubber circuit protection. It also has a high surge rating ...

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Six colour choice for 12V 20A illuminated toggle switch

C&K’s ILT series is the first illuminated toggle switch range in the company’s portfolio. The switches have metal bushing to toughen them up for environments such as control panels, heavy equipment, industrial instruments, LED lights, lifts, escalators, medical equipment and security system. They are intended for 12V operation and ratings are: up to 10,000 cycles, 20A and -25°C to ...

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400W wireless charger tracks moving receiver with maximum efficiency

Multiple transmit coils can ease positional constraints in wireless charging systems, but it is not easy to optimise power transfer. Now Korean engineers have found an elegant way to do it, only measuring the reflected receiver impedance from each transmit coil and processing that to decide how much current each transmitter should deliver. “Our strategy breaks ...

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180° radar for road cars from NXP

NXP has announced a suite of 77GHz tranceivers and radar processors “that address NCAP requirements for corner and front radar applications while offering ‘4D’ imaging radar’s first commercially viable path to volume production, according to the company. ‘4D imaging’ radar adds direction, angle of arrival and elevation measurement to simply measuring range and speed. The parts are ...

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recycling 2d printers into 3d printing filamenet

Canon Ecology Industry has developed two types of 3d printing filament, made 100% from parts of discarded multi-function printer/scanners. These are the first in-house developed products from the company, which was set up in Japan to meet the sustainable development goals of Canon by recycling or arrange re-use of products made by the company. The ...

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Leonardo seeks increased diversity with AFBE-UK

Leonardo and the Association for Black and Minority Ethnic Engineers (AFBE-UK) have formed a partnership to increase diversity at the defence engineering company, which has over 7,500 employees across the UK, to “build an inclusive culture for all of its people and to help attract a richer diversity of job applicants to the business”. Dr Ollie ...

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Working towards a sensor to monitor healing in chronic wounds

A flexible wearable sensor might one day guide treatment for chronic (long-lasting) wounds such as diabetic foot ulcers or pressure ulcers. Researchers from Russian institute Skoltech and the University of Texas at Austin have created a prototype for such a sensor, and demonstrated it in a simulate wound environment where it measured three biomarkers, all of ...

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