Author Archives: steve bush

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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Smart secure eval kit for for automotive data gateway

STMicroelectronics is aiming at automotive gateways that link car electronics to the cloud with an evaluation kit built around secured chips. Called SGP-TC-EVK ‘smart gateway platform’, potential use-cases include over-the-air (OTA) management, firewall, Ethernet packet inspection, secure CAN-to-CAN data routing, secure CAN-to-Ethernet data routing, body control management, intrusion detection and predictive maintenance. On-board M.2 and Mini PCIe ...

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Rechargeable cells for IoT

NGK Insulators has released further details of its EnerCera range of rechargeable batteries for IoT use. They include parts that can be refow soldered and others that can be hot laminated. There are two sorts: EnerCera Coin – coin cells 1 – 2mm thick for PCB mounting – some can be reflowed EnerCera Pouch – ...

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Toshiba’s Cortex-M MCU roadmap includes SONOS memory

Toshiba has revealed its Arm Cortex-M microcontroller plans, announcing 200MHz (254 DMIPS) 40nm parts “dissipating approximately 30% lower dynamic power compared to the existing* 65nm devices”, it said, and 130nm parts with SONOS memory. The family is split into two device classes: TXZxA+ (A for ‘advanced’) in 40nm with either an Arm Cortex-M3 or a Cortex-M4 with floating point unit (FPU). TXZxE+ (E for ‘entry’) ...

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SiC Schottky diode modules from Microchip

Microchip has introduced Schottky diode power modules in 700, 1200 and 1700V variants. They come in a choice of packaging and current ratings, as well as in various topologies including dual diode, full bridge, phase leg, dual common cathode and three-phase bridge. “The devices’ high avalanche performance allows system designers to reduce the need for snubber ...

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Six digit PINs are no better for security than four digits

Six-digit security PINs provide little more security than four-digit ones, according to research by a German-US team. It has everything to do with psychology. “Mathematically speaking, there is a huge difference, of course,” said Philipp Markert of Horst Görtz Institute for IT Security at Ruhr-Universität Bochum (photo left). “However, users prefer certain combinations:  some PINs are ...

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