Author Archives: steve bush

More stability and 25% efficiency for perovskite solar cells

Metal-organic ferrocenes could make perovskite solar cells more stable, according to Imperial College in London. The cells in question are a joint venture between Imperial and City University of Hong Kong (CityU). “Our collaboration with was beautifully serendipitous, arising after I gave a talk about new ferrocene compounds and met Zonglong Zhu from CityU, who asked ...

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80dB PSRR LDO has switchable current limits: 1A or 500mA

Diode’s AP7368 is an LDO with a selectable maximum output current of either 500mA or 1A, “allowing designs to optimise for the required output loads and thereby mitigating thermal or protection issues. Current fold-back is included, to 60mA for low-current mode and 110mA for high-current mode, to alleviates thermal shut-down cycling during short-circuit fault conditions, and to ...

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12.7mm absolute position rotary sensor

Vishay has introduced a 12.7mm diameter rotary absolute position sensor with >11bit accuracy and 14bit resolution. Called RAME012, it is designed to cope with the harsh environments of military and industrial applications over -40 to +105°C. Operation is from 5V at <100mA and over 360° in the standard version, which has a SSI (synchronous serial interface) output – ...

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Software-defined multi-instruments for field, lab and research

Liquid Instruments has updated its Moku:Pro (right) software-defined multi-test-instrument, adding laser-locking and enhancing its oscilloscope function. The company’s three Mokus (table below): Moku:Go, Moku:Lab (photo) and Moku:Pro are multi-channel digitisers and multi-channel DACs with memory and FPGA processing in between, configured into an array of instruments by software. Bandwidth, channel count and price rises through: Go, ...

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Cadence fluid modelling software gets new flow solver

Following on from acquiring Numeca and Pointwise, Cadence Design Systems has introduced suite of computational fluid dynamics (CFD) software for vertical markets including automotive, turbomachinery, marine and aerospace. Called Fidelity, it “introduces a next-generation flow solver featuring high-order numerics, scale-resolving simulations and massive hardware acceleration”, according to Cadence. Included are specialised flow solvers for marine ...

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AMD ramps up security for Ryzen Pro 6000 laptop processors

AMD has released more information on its Ryzen 6000 Pro series of processors for laptops, with eight 6nm ‘Zen 3+’ cores and RDNA 2 graphics. Much of the announcement was around increased performance and longer battery life when running Microsoft office and videoconferencing software, but there was also significant emphasis on cybersecurity provisions. “We saw new ...

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117dB audio amplifier uses Class-G output stage

STMicroelectronics is using Class-G analogue audio technology to create 117dB S/N ratio, >117dB dynamic range (A-weighted), automotive amplifier. Class-G amplifiers are similar to traditional Class-AB amplifiers except that, to increase electrical efficiency, the output devices are supplied from a low voltage rail when output signals are small, and a higher voltage rail during loud passages. In ...

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Advantest joins Open Invention Network for Linux cooperation

Automated test equipment maker Advantest has joined the Open Invention Network (OIN) patent non-aggression community. OIN’s community, according to the Network, agrees non-aggression in patents in core Linux and adjacent open source technologies by royalty-free cross-licensing of Linux patents to one another. Patents owned by the Network are similarly licensed royalty-free to any organisation that ...

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Lifecycle security and Trustzone management for Renesas RA MCUs

Segger has tied up with Renesas to add DLM (device lifecycle management) and Trustzone partitioning during mass production for Renesas’ Arm Cortex-M33 based RA4 and RA6 microcontrollers. The new features are additions to Segger’s ‘Flasher’ line of in-circuit programmers, and are available to owners of existing Flashers as a software update with “no charge, no ...

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Thermo-electric generator is 40% efficient, but only at 1,900-2,400°C

MIT has created a thermovoltaic demonstrator that can convert heat energy at between 1,900 and 2,400°C in to electricity energy with 40% efficiency – which is above that of a steam turbine. The technology is aimed at future grid-scale energy stores. Analagous to a multi-junction photovoltaic cell, MIT’s device has two stacked junctions, each picking ...

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