Author Archives: steve bush

Smart road infrastructure warns dumb cars

Road-side long-range sensors could provide road users in normal vehicles with warnings similar to those available in smart vehicles, according to a research project running in Germany. The concept involves solar-powered road-side units with a mix of radar, optical cameras and infra-red sensors, feeding neural networks and machine learning designed to differentiate between pedestrians, cars, ...

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Bristol university makes photons for quantum computing, on CMOS

A team of physicists at the University of Bristol has use CMOS to integrate photon source suitable for “large-scale quantum photonics”, it said. “An important challenge that has limited the scaling of integrated quantum photonics has been the lack of on-chip sources able to generate high-quality single photons,” according to Bristol quantum engineer Stefano Paesani. ...

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Alpha and Omega adds SiC mosfets, starting with 1.2kV 85A

Alpha and Omega Semiconductor has released a 1.2kV 65mΩ silicon carbide mosfet, its first on a new technology platform. “After years of development work, we are excited to add this SiC mosfet technology to Alpha and Omega’s existing silicon mosfet and IGBT portfolio, and our 650V GaN platform,” said company director David Sheridan. The SiC ...

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Dual mosfets buck 20A through 3.3 x 3.3mm footprint

Diodes has announced the first in a new generation of discrete mosfets, with two n-channel transistors in a 3.3 x 3.3mm package. Called DMN3012LEG, its transistors are made using an LDMOS (lateral diffused MOS) process, and optimised for buck converters and half-bridges – they are internally connected with Q1 as the high-side switch and Q2 on ...

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Wideband RF HPAs offer constant power through their bands

Erzia Technologies has announced a series of rf wide-band high-power amplifiers (WHPAs) that offer both broadband frequency coverage and consistent output power throughout bands as high as E-band. “These wide-band designs are among the first of their kind to be capable of withstanding the harshest environments while holding output power in place,” claimed the company, ...

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Gap-filling thermal compound has glass bead option

Techsil is stocking SilCool TIA241GF silicone thermally conductive gap filler from Momentive, intended for applications where good heat transfer, low stress and good interface wetting are required. Thermal conductivity is 4.1W/mK. Called SilCool TIA241GF, it offers tacky adhesion and retained softness after cure for applications where movements in x, y, and z directions occur due to ...

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‘Zero-drift’ op-amp works across 4.5 to 36V

ADA4523-1 is a precision ‘zero-drift’ op-amp from Analog Devices that works across 4.5V to 36V, drawing 6mA worst case. The output is rail-to-rail, and the input includes the negative rail – working from 100mV below the negative rail to 1.5V below the positive rail. Maximum offset voltage is ±4µV and, due to self-calibrating circuitry, this ...

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Linear LED driver for automotive lighting includes PWM

Rohm has introduced a linear LED driver for automotive use, following close on the heels of its LED driver for motorcycles. BD18336NUF-M is a 3 x 3 x 1mm constant current driver IC that can deliver 400mA continuously (600mA at 50% duty cycle) into a string of three white LEDs or parallel strings of LEDs. ...

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Siglent signal generator reaches 6GHz

Siglent SSG5000X-V is a 6GHz signal generator with vector capability “which now gives the company RF generators that address the complete sub-6GHz communication frequency range. This includes the latest NR-5G Band [FR1], which is located between 3.4 and 3.7GHz”, according to Siglent. Phase noise is -120dBc (1GHz 20kHz offset) with regulated maximum output to +20dBm ...

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Dev kit for edge AI inferencing in PolarFire FPGAs

Microchip aims to help developers use its PolarFire FPGAs for creating overlay-based neural network applications for edge use, without learning an FPGA tool flow, with a product called VectorBlox Accelerator software development kit (SDK). “FPGAs are ideal for edge AI applications, such as inferencing in power-constrained compute environments, because they can perform more Gop/s with greater ...

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