Author Archives: steve bush

Matchbox-sized atomic clock for commercial space

Microsemi has launched a radiation-resistant matchbox-sized atomic clock for commercial applications such as low Earth orbit (LEO) satellites. applications, the device provides the accuracy and stability of atomic clock technology while achieving significant breakthroughs in reduced size, weight and power (SWaP) consumption. Called SA.45s, it draws less than 120mW and fits in 17cm3 (41 x 35 x ...

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PCIM: Rohm and GaN Systems join forces for gallium nitride power

Rohm and GaN Systems have agreed to develop form, fit, and function compatible products using GaN semiconductor dies in both GaN Systems’ GaNPX packaging and Rohm’s traditional power semiconductor packaging. “GaN Systems and Rohm customers will now have the advantage of having two possible sources for package-compatible GaN power switches, presenting the widest selection of ...

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Plessey micro-LEDs selected for AR glasses

Plessey has tied up with Vuzix to develop augmented reality glasses, combining Plessey’s ‘Quanta-Brite’ micro-LED arrays and Vuzix’ expertise and IP in smart glasses and optics. Plessey is offering a light source for illuminating DMD (digital micro-mirror device) or LCoS (liquid crystal-on-silicon) display engines, based on monolithic arrays of micro-LEDs, claiming that the resulting optical system ...

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6mm nuclear battery lasts for 100 years

Diamond diodes are at the heart of a nuclear battery, designed by Russian researchers, that achieves ~3,300mWh/g – claimed to be more than any other nickel-63 nuclear battery, and 10 times more than commercial chemical cells. The cell used the beta (fast electron) decay of nickel-63 and diamond Schottkys for energy conversion. The prototype has a ...

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Spin current switch demonstrated

Researchers at Tohoku University and Mainz University have created a switch to control the spin current. “This is significant because although the technology behind detecting and generating the spin current has been established for some time, a long-missing component in the history of spintronics has been a spin current switch,” said Tohoku University, equating it to ...

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Pressure sensor marks altitude for drones

BMP388 is a digital barometric pressure and temperature sensor from Bosch. The 24-bit device measures from 300hPa to 1250hPa, while consuming 3.4 µA at 1Hz “It features a best-in-class temperature coefficient offset between 20 and 65°C, the BMP388 delivers accurate altitude measurement over a broad temperature range,” said Mouser, which is stocking the device, and foresees ...

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Microchip aims at closed-loop control with PICs and ATtinys

Microchip is aiming at closed-loop control with a part of microcontroller families: PIC18 Q10 and ATtiny1607 Both families have features for functional safety, and operate up to 5V to increase noise immunity and increase compatibility with the majority of analogue output and digital sensors. Both also have peripherals that can co-operate while the processing core sleeps. ...

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Self-driving cars need to be four times safer, and preferably 100x

Self-driving cars must reduce traffic fatalities by at least 75% to stay on the roads, according to the US Society for Risk Analysis. The figure comes from Chinese research using a method not previously used to study self-driving vehicle safety perception – an ‘expressed-preference approach’. “The results showed that the public will not accept this ...

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150°C automotive polymer electrolytic capacitors

Kemet has introduced 150°C polymer electrolytic capacitors qualified for automotive use. Called the T599 series, the parts are based on the existing T598 series. “Kemet refined the design, materials and manufacturing to ensure T599 delivers higher stability and endurance under harsh conditions,” said the firm. The parts pass 1,000 hours of humidity bias testing under ...

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12bit ADC runs at 10Gsample/s

Analog Devices has introduced a 12-bit ADC that  operates at 10.25Gsample/s. Called AD9213-10GEBZ, for it the firm claims “higher parametric performance, greater Nyquist bandwidth, and RF sampling capabilities at higher analogue input frequencies than conventional RF ADCs, allowing for the digitisation of RF signals up to 7GHz. The high sample rate and integrated post processing enable further ...

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