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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Automotive 1A PoL converter has PWM and PFM for better efficiency

Diodes is aiming at automotive point-of-load converters with a 1A buck converter that can run from 5V and 3.3V rails. Output can span 600mV to 3.6V said the company, although one data brief says 800mV to 4V. Called AP61100Q, the chip has synchronous rectification – with a 110mΩ high-side mosfet and 80mΩ low-side mosfet. Operation ...

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DAB chips and modules for prettier user interfaces from Frontier

Frontier is aiming at better-looking DAB+ radio products with a ‘Pro’ range of chips, modules and software. Its Kino 4-Pro chip has a larger memory than its earlier silicon, allowing features to be added without compromising performance. Siena-Pro is a module built around Kino 4-Pro. To ease migration, Kino 4-Pro and Siena-Pro are pin compatible ...

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Memory test and burn-in for 5G development labs

Advantest’s H5620ES engineering test system is designed for burn-in and core testing of DDR4, DDR5 and LPDDR devices in laboratory environments. “Like its sister system, the H5620 production unit, the new tester parallel tests both DDR4 and DDR5 memories. It can accommodate memory ICs with 100MHz frequencies and 200Mbit/s data rates,” said the company, adding ...

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Varta gets €300m IPCEI R&D grant

VARTA is to get €300 million via an IPCEI  (Important Project of Common European Interest) project. Funds are coming  from the German Federal Ministry of Economics (BMWi) and the states of Bavaria and Baden-Württemberg. The project will focus o developing small-format lithium-ion cells with higher energy densities.  These new battery formats are to be optimised on ...

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Varta gets €300m IPCEI R&D grant

VARTA is to get €300 million via an IPCEI  (Important Project of Common European Interest) project. Funds are coming  from the German Federal Ministry of Economics (BMWi) and the states of Bavaria and Baden-Württemberg. The project will focus o developing small-format lithium-ion cells with higher energy densities.  These new battery formats are to be optimised on ...

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Keynotes and topics announced for first-ever Wales Tech Week

The first-ever Wales Tech Week has confirmed more than 50 virtual events as part of the festival, which runs 13 – 17 July and is free to access. It is designed to showcase the Welsh technology industry and its applications in use across the world, and the first keynote is by Lee Waters MS, Deputy Minister ...

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