Author Archives: steve bush

PCB assembly: avoid hot-shortness or partial re-flow

Gordon McAlpine, is production manager at PCB assembly firm Dynamic EMS, has sent in a tip on how to avoid hot shortness, also referred to as partial re-flow, where a connection has been heated close to melt temperatures causing grain boundary weakening. The risk is that components can be partially re-flow, significantly weakening their attachment, when a ...

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Battery powered 100MHz scope has plenty of interfaces

Saelig is stocking two- and four-channel battery-powered portable oscilloscopes from Shenzhen-based Micsig. There are three models in the STO1000E PLUS series: STO1102E PLUS 2-channel 100MHz STO1152E PLUS 2-channel 150MHz STO1104E PLUS 4-channel 100MHz Each includes a 70Mpoint memory, 1Gsample/s sampling (single channel only), 130,000wfm/s refresh rate and a 7.5Ah Li battery. They have an 8″ (#200mm) 800×600 touch screen ...

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Drone radar database made public for UAV hunters

A database of drone radar cross sections has been made public to help those developing countermeasures. ‘We measured drone radar cross sections at multiple 26-40GHz millimetre-wave frequencies to better understand how drones can be detected, and to investigate the difference between drone models and materials in terms of scattering radio signals,” said researcher Vasilii Semkin ...

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Industrial PCs get Gen 9 and Xeon E processors

Kontron has upgraded its KISS V3 family of industrial rack-mount PCs, moving to 9th Gen Intel Core i7/i5/i3 or 2nd Gen Xeon E processors with up to eight cores on a FCLGA1151 socket with C246 chipset. Called KISS V3 CFL, they come in 1U, 2U and 4U formats. “Thanks to their resistance to high temperatures as ...

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Trace and debug for RISC-V IP

SiFive has announced hardware trace and debug for RISC-V processor IP. Called SiFive Insight, it is “industry’s first combined trace and debug solution for the freely-available, open-specification RISC-V ISA”, said SiFive. it is intended to “meet customer demand and expectations for the capability to access, observe, and control products deploying SiFive’s RISC-V Core IP portfolio”. ...

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Power analyser add-ons stream data for motors and flicker testing

Yokogawa is increasing PC connectivity for its WT5000 power analyser with two new options and a firmware upgrade – aiming to improve performance when developing or evaluating electric vehicle-related equipment, and solar or wind power equipment. “The DS option centres on waveform data streaming, while the focus of G7 option is IEC harmonic, voltage fluctuation ...

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Strain gauges for humid environments

Micro-Measurements of North Carolina has introduced a series of strain gauges with enhanced encapsulation for humid environments compared with its regular CEA series. Called CHA, the improvement is scored under the ASTM-5229 ‘Standard test method absorption properties and equilibrium conditioning of polymer matrix composite materials’ because the parts are intended for application such as humidity-conditioned composite ...

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Need a siren?

CUI Devices has added a number of sirens to its offerings. All numbered starting with ‘CPS-‘ they use piezo technology with a built-in driving circuit to create a range of variable tones and sounds, “including hi-lo, warble, sweeping, one-tone and six-tone”, according to the company. Featuring sound pressure levels (SPLs) go up to 120dB, and ...

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Driver chip for SiC mosfets gets AEC-Q100 for automotive

Power Integrations has announced AEC-Q100 automotive certification for a single-channel gate driver for silicon carbide (SiC) mosfets switching up to 300kW. Called SIC118xKQ, there are two parts: SIC1182KQ – 1.2kV SIC1181KQ – 750V They provide up to 8A and suit SiC transistors handling 600-800A with standard gate-emitter voltages from +15V, with various negative voltages from ...

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A step on the road to metal-air vehicle batteries?

Batteries that breath air are a possible future for electric vehicles, as they might significantly cut the weight of energy storage. Called metal-air batteries, during discharge they react a metal (lithium, zinc, magnesium or aluminium, amongst other options) with oxygen from the atmosphere to deliver energy. During charge, they emit the oxygen. A catalyst is ...

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