Author Archives: steve bush

BAE’s most powerful space computer yet

BAE Systems has announced a radiation-hardened single-board space computer. Called RAD5545, it has a quad-core 32/64bit QorlQ Power Architecture processor running at 466MHz and offering 5.6 Drystone Gips of processing with 512kbyte/core L2 cache and 1Mbyte x2 L3 cache on a ANSI/VITA 78.00 SpaceVPX compliant 6U-220 board. Up to 16Gbyte of DDR3 ram can be ...

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Multi-length surface-mount connectors set board-to-board distance

WR-BTB is a family of surface-mount board-to-board signal connectors from Würth Elektronik. The plugs with coded guide are available in versions with 40, 64, 80 or 100 pins. Models with 0.8 and 1mm pitch are also available in various heights. Various male and female plugs can be combined to achieve a defined spacing between two ...

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EPSRC reveals leaders for sustainable energy research

Three leaders have been identified for the next phase of the UK’s Supergen Programme – to design research ‘hubs’ that will investigate sustainable energy technology. They received six-month grants (see below) to build consortia, investigate research strategies, devise networking plans and device engagement plans for their fields, according to the Engineering and Physical Sciences Research ...

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Two-colour LED in 1608

Rohm is claiming the smallest two-colour LED with the launch of the 1608 size SML-D22MUW, intended for use behind seven-segment displays. Red, green die are included, and intermediate colours are possible using both die. The 1.6 x 0.8mm footprint is down 35% from 1.5 x 1.3mm two-colour LEDs. “In recent years, chip LEDs are being ...

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Microsemi joins US SiC and GaN initiative for 1.7 and 3.3kV devices

Microsemi has joined PowerAmerica, the US public-private initiative to promote the commercialisation of GaN and SiC power semiconductors, and US-based manufacturing. The organisation has $70m backing from the US Department of Energy over five years. The firm’s role at the organisation will be supporting the commercialisation of 1.7 and 3.3kV SiC mosfets and SiC Schottky diodes. “With ...

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PC scopes distil data from a million waveforms

UK PC-based oscilloscope firm Pico Technology has introduced automatic measurement of waveform parameters on up to a million successive waveform cycles. Calling it DeepMeasure analysis tool, it has facilities to sorted, analyse and correlate waveforms, and is included as standard with PicoScope 3000, 4000, 5000, and 6000 Series oscilloscopes. “As electronic devices become more complex, design engineering ...

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Limiter clamps 100W from 10MHz to 6GHz.

To protect low-noise receivers, Peregrine Semi’s PE45361 power limiter offers 50dBm (100W) pulsed power handling from a surface-mount package, operating from 10MHz to 6GHz. Pulsed in this case is 1% duty cycle  – 10µs pulses in 1ms – in a 50Ω system at 25°C. CW power handling varies around 33-36dBm from ~10MHz to 1GHz, depending on ...

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UN: Please ban autonomous killing machines

An open letter signed by 116 founders of robotics and artificial intelligence companies from 26 countries urges the United Nations to ban the use of lethal autonomous weapons internationally. Signatories include: Elon Musk, founder of Tesla, SpaceX and OpenAI (USA) Mustafa Suleyman, founder and head of applied AI at Google’s DeepMind (UK) Esben Østergaard, founder ...

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Gate drive PSU aimed at SiC mosfets

Recom is aiming at powering silicon carbite mosfet gate drives with its latest 2W dc-dc converters. “High-frequency and high-voltage switching are the main challenges of driving SiC mosfets,” said the firm. “A typical DC/DC isolation voltage should normally be at least twice the working voltage, but the high ambient temperature and fast switching edges generated ...

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UK team moots better supercaps

Semi-interpenetrating polymer networks could improve supercapacitors, according to Queen Mary University of London (QMUL) and the University of Cambridge, who are seeking alternatives to carbon supercapacitors. “Pseudocapacitance is a property of polymer and composite supercapacitors that allows ions to enter inside the material and thus pack much more charge than carbon ones that mostly store ...

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