Phase-locking has improved the beam purity of a 3.3THz (88−94µm) quantum cascade laser (QCL) to create a single-mode 2W output with 2.3% wall-plug efficiency. “To the best of our knowledge, the radiative efficiency of our terahertz lasers is the highest demonstrated for any single-wavelength QCL to-date and is the first report of a radiative efficiency ...
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Lynx Software Technologies is aiming at high-reliability multi-core edge computing with three custom software bundles for industrial, avionic and UAV/satellite applications. Each includes its Mosa.ic framework for integrating multiple operating systems in safety-related or secure systems, and each is built around the LynxSecure separation kernel hypervisor. They “leverage the safety and reliability of Mosa.ic to enable mission critical ...
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Nexperia has announced a second generation of 650V gallium nitride power transistors, claiming reduced on-resistance and, with its surface-mount copper clip package (right), reduced inductance. Called ‘H2′, the parts are AEC-Q101-qualified for automotive applications, and the second-generation die are also available in TO-247 for industrial use. “Customers need a solution for power conversion at 650V ...
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STMicroelectronics has released a paper describing ways to combine Bluetooth LE, accelerometers and sub-GHz Sigfox comms in a wearable social distancing node, designed to work with similar nodes. It uses non-connecting Bluetooth modes, measuring signal strength to estimate the proximity of similar devices in real time – acting on three adjustable virtual ranges: safe (>3m), pre-alert (3m) ...
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Analog Devices has introduced RS-485 and RS-422 transceivers that can withstand 5.7kVrms and ±15kV ESD. “The transceivers’ simplified PCB layout and small form factor pack more functionality into space constrained applications than the previous generation,” said ADI. There will be four products: ADM2867E 25Mbit/s full duplex, separate driver and receiver cable inversions pins ADM2865E 25Mbit/shalf ...
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Panasonic has used conductive polymer technology to produce surface-mount aluminium electrolytic capacitors with 3mΩ max equivalent series resistance (ESR, 100kHz +20°C) in a 7.3 x 4.3 x 2.8mm package. The parts are intended as input or output capacitors on dc-dc converters. Maximum ripple current is 10.2A (100kHz +45°C – less at high temperature). Called the EEF-GY ...
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Organic surface passivation has allowed a gallium oxide transistor to hold-off 8.03kV – the highest reported for a lateral mosfet, according to the University of Buffalo engineering team behind the device. The proof-of-concept device was passivated with the high field strength epoxy polymer SU-8. Without passivation, a similar transistor scored 2.7kV. This un-passivated voltage is ...
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Rutronik is offering two miniature CMOS wideband RF antenna diversity switches from Infineon, operating across 50MHz to 6GHz. Both are specifically designed for WLAN and Bluetooth and will operate at 26dBm (CW, 1.1 VSWR, 50Ω) BGS14WMA9 is a single-pole four-way in a 9pin SMD 1.1 x 1.1 x 0.55 mm package Its bandwidth also allows ...
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Rohm has signed a deal to develop silicon carbide electric vehicle drives with Vitesco Technologies. “Energy efficiency is of paramount importance in an electric vehicle,” said Vitesco v-p Thomas Stierle. “As the traction battery is the only source of energy in the vehicle, any losses caused by power conversion need to be minimised. We are therefore ...
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Kemet is aiming at fast-switching wide bandgap semiconductor (GaN or SiC) power supplies with high-voltage multi-chip ceramic capacitor assemblies. The parts, branded ‘KC-Link with Konnekt’, feature multiple separate ceramic capacitors bonded together using a copper-tin alloy by a process dubbed ‘transient liquid phase scintering’ (TLPS) – see diagram. “High mechanical robustness allows KC-Link capacitors with Konnekt ...
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