Author Archives: steve bush

Anritsu boosts MP1900A analyser for 400 and 800Gbit Ethernet

Anritsu has added forward error correction symbol capture and bathtub test to its 116Gbit/s PAM4 error detector (MU196040B) for developers of 400 and 800Gbit/s Ethernet devices. For use in the company’s MP1900A signal quality analyser, the functions can be downloaded from the MP1900A website. “Data centres are investigating speed upgrades from 100Gbit Ethernet to 400Gbit Ethernet ...

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600W 915MHz ISM pallet

Ampleon has announced a 600W 915MHz RF LDMOS module for industrial, scientific and medical applications operating in the ISM band. Dubbed BPF0910H9X600, it operates across 902MHz to 928MHz and has 50Ω matching on input and output. Power gain is typically 19dB and harmonic suppression 27dBc. 600W is specified at 1dB compression. It needs a 50V power ...

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1kV isolated voltage sensors meet IRIS for rail traction

LEM is aiming at rail traction and industrial applications with a series of isolated voltage sensors for ac, dc and pulsed use. DVC 1000 series sensors are panel-mount and measure 29 x 51 x 89mm – 131.6cm3– and 57g.  A DIN rail mounting adaptor is an option. “LEM developed the DVC 1000 to be compliant with the ...

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Dc-dc works straight from 400V EV battery

Power Integrations has qualified its 550V LinkSwitch-TN2 dc-dc converter IC to AEC-Q100 for automotive use. Designed for non-isolated down-conversion, and numbered LNK3206GQ, it can deliver 7W in a fly-back circuit or 360mA in buck converter form, from 60 to 550Vdc in either case. Regulation, claims the company, i sbetter than +/-5% across line voltage, load, temperature and ...

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Rohm op-amp eliminates oscillation due to load capacitance.

Rohm is claiming “industry’s first high-speed op-amp that eliminates oscillation due to load capacitances” for its 10V/μs BD77501G – which is not quite true unless some further caveats are added as, for example, ADI’s ‘C-Load’ op-amps are stable with any capacitance – LT1364 can hit 1,000V/μs. Rohm’s branding for capacitive tolerance is ‘Nano Cap’. BD77501G is ...

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Commercial AI is likely to cheat you, unless trained not to

Artificial intelligence that tricks you into paying more for things has come under the academic spotlight in a project by Swiss lab EPFL and British partners. The research found that, unless specifically checked, AI can easily resort to manipulative strategies. It also identified drivers towards these unethical practices, and ways to design them out of ...

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A step on the road to skyrmion memories

US researchers have manipulated fixed magnetic skyrmions using voltages, offering a possible route to skyrmion memory. Magnetic skyrmions are self-contained stable spin fields that share some characteristics with particles. They can be only a few nanometres across, and in certain circumstances can be created, destroyed and manipulated with very little energy, leading to them being ...

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PFC controller for 600W to 6kW comes with configuration software

STMicroelectronics has announced a power-factor correction controller for the front-end of ac-dc PSUs from 600W to 6kW. Called STNRGPF02, it implements a two-channel interleaved boost topology as well as in-rush current limiting. Operation is fixed-frequency continuous-conduction mode (CCM) with average current-mode control. “A blend of analogue and digital control combines a hardware analogue PI [proportional-integral] ...

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Self-hollowing nano-particles store lithium for batteries

Spontaneously-hollowing antimony particles could increase the capacity of lithium ion cells, according to the Georgia Institute of Technology. “Intentionally engineering hollow nano-materials has been done for a while now, and it is a promising approach for improving the lifetime and stability of batteries with high energy density,” GaTech research engineer Matthew McDowell. “The problem has ...

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