Author Archives: steve bush

Benetel partners with Radisys for 5G small cells

Dublin-based Benetel has integrated its Radio Unit with Radisys’ 5G NR OpenRAN software for OpenRAN deployments in communication, industrial and private networks. The two companies have also made a licensing agreement for Radisys’ LTE software to allow its distribution with Benetel’s eNodeB radio platforms. Pre-integrated, the hardware and software can be deployed in both non-standalone ...

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Experimental supercap reaches 73Wh/kg and 16kW/kg to challenge NiMH and Pb-acid batteries

Combing graphene with a metal-organic framework can produce a highly-porous and conductive electrode for supercapacitors, according to the Technical University Munich (TUM), which has built a device to prove it, that can challenge some battery technologies for specific energy capacity. “The new energy storage device does not only attain an energy density of up to 73Wh/kg, ...

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When robots spontaneously organise

US engineers and physicists have identified conditions where independent robots will spontaneously act collaboratively – much as flocks of starlings form shapes in the air. It does not cover every situation nor every type of independently-acting entity, but posits that entities with sufficiently messy dynamics will spontaneously find ‘low rattling’ states. “Rattling is when matter ...

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At last: some real Brexit information

With less that a week to go, there is some real information on how companies should deal with the consequences of Brexit. Sadly, it is only a summary of the main 1,200 page document, which remains unpublished at the time of writing. The UK government ‘UK-EU trade and cooperation agreement summary’ is here. Less than ...

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Tuneable white-emitting LED needs no phosphor

Researchers in Saudi Arabia have demonstrated white light emission from a phosphor-less LED. Generally, ‘white’ LEDs have a blue-emitting die topped with phosphors that convert some of that blue to broad-spectrum amber – which combined with the residual blue is seen by humans as cool white. Adding a red-emitting phosphor in the mix produces warm white ...

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40V 3mΩ GaN power transistor, and gate drive design assistance

Efficient Power Conversion (EPC) is aiming at USB chargers and thin point-of-load converters with a 40V 3mΩ enhancement-mode GaN power transistor. Called EPC2055 it is a “good example of the rapid evolution of GaN FET technology”, according to company founder and CEO According to Alex Lidow.  This 40 volt device offers both smaller size and reduced ...

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Graphene gets a bandgap for opto-electronics

While graphene has some amazing physical, optical and mechanical properties, its lack of a natural bandgap limits its use in electronics. Methods of varying complexity have been found to add bandgaps, and now there is another tool in the box – a chemical whose molecules self-assemble into an evenly-spaced flat lattice as they bond down ...

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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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