Author Archives: steve bush

Functional safety intelligent power switches are fast

STMicroelectronics has introduced fast-starting intelligent power switches for safety-instrumented systems. They are designed to meet IEC 61131-2. “With power-on delay time of less than 60µs, the IPS160HF and IPS161HF satisfy standardised requirements for interface types C and D in Safety Integrity Level (SIL) Class 3 applications,” according to the company. They will drive complex resistive, capacitive and ...

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Small plastic enclosures, made in Harrogate

BCL Enclosures of Yorkshire is offering the BC range of hand-held cases for measuring instruments, wireless communication devices, and control and data recording devices. BC2 has a belt/pocket clip and integral PP3 battery compartment with a removable cover and clip-in terminals as standard. Four internal location pegs and sockets hold a PCB in place without ...

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Schottky junction turns a neutral crystal piezoelectric

Adding a Schottky junction to certain crystals can turn them into piezoelectric or pyroelectric crystals, even if they were unaffected by deformation or heat before, according to the the University of Warwick, where the research was done. The subjects were ‘centrosymmetric’ semiconductors. niobium-doped strontium titanium oxide crystals niobium-doped titanium dioxide crystals niobium-doped barium strontium titanium ...

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Newcastle touch-screen maker wins tough-screen contact in Italy

Newcastle-based Zytronic is to supply rugged 55inch custom touch screens to Italian vending machine maker PharmaShop24. These are huge machines, that vend 255 over-the-counter medicines from what amounts to a small robot-automated warehouse. To fit more product into a fixed space, PharmaShop realised that the traditional vending mechanism, where customers view products directly, was no ...

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Laser-cut graphite sheet aids flow battery research

Flow batteries are energy storing structures that store chemical energy as liquid electrolytes in tanks, and pump those liquids to a reaction site – a membrane-electrode assembly (MEA) – when electricity must be produced or re-charge is needed. This separates the number of watts a flow battery can produce from the number of joules it can ...

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Parabolic antennas cover 600MHz to 6.5GHz for 2G, 3G, 4G and 5G

Raltron has developed a parabolic antenna series that provides continuous coverage from 600MHz to 6.5GHz. There are two antennas in the ‘RGP’ series: RGP-MBF4-825-17F-TA-001 820mm round, 215mm deep Heavy duty version – one-piece dish RGP-MBF4-6099-17F-TA-001 ~0.6 x 1m rounded rectangle, o.4m deep Two-piece dish Both cover the whole frequency range, but can be optimised for ...

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3d printable polymer can take a battering under the bonnet

Intended for under-bonnet automotive applications, amongst others, Arnilene AM6001 GF (G) is a glass-filled polypropylene material for fused granulate fabrication 3d printing from Royal DSM in the Netherlands. “Popular for its thermal, mechanical and chemical performance, polypropylene is the second most used polymer worldwide in traditional manufacturing,” according to the company. “Despite broad adoption of 3D printing, no ...

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Self-driving vehicle watches human to cope better in strange environments

Self-driving vehicles can learn from human drivers, then sometimes out-drive them, according to US Army research. The team designed an algorithm that allows an autonomous ground vehicle to improve its existing navigation systems by watching how a human driver remote-controlled the same vehicle, calling the approach ‘adaptive planner parameter learning from demonstration’ – APPLD. The approach ...

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Automotive always-on dc-dc controllers need only a few µA

Renesas has introduced a pair of automotive dc-dc converter chips with low operating current for ‘always-on’ applications. Both are designed to work with external mosfet power stages. ISL78264 is a 50W-200W synchronous dual buck controller intended to manage the intermediate first stage dc-dc conversion, stepping down the 12V battery system to 5V and 3.3V to ...

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Bridge chip links one-wire bus to ten I2C or SPI peripherals

Maxim has introduced a chip to interface devices equipped with I2C or SPI bus connections to its ‘1-wire’ bus. Called DS28E18, it is intended to knock cost out of networks that connecting I2C and SPI sensors to a host by reducing the number of copper wires needed for up to 10 nodes to two wires. ...

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