30V mosfets half-bridge plus Schottky in one package

Vishay has introduced a 30V n-channel MOSFET half-bridge power stage that combines a high side TrenchFET and low side SkyFET in a 3.3 x 3.3mm package. The mosfets are optimised for their respective tasks in a buck converter (see table and diagram). One has a maximum on-resistance of 4.5mΩ at 10V (7.0mΩ at 4.5V) and ...

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Etch a metasurface with without ruining the physical surface

Researchers from the University of Southampton have found a way to make an optically-active meta-surface without altering the physical shape of the surface. Infra-red thermal control coatings and non-linear optics are potential applications. Metasurfaces are structures designed to control, for example, electromagnetic radiation using repeating structures, typically with sub-micrometer dimensions for light. Routes to forming ...

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Heart rate and oxygen sensor has LEDs and algorithms, in

Maxim has created a module for sensing human heart-rate and oxygen saturation that includes photodiodes, an analogue front-end and a Arm Cortex-M4 microcontroller with embedded algorithms, in a thin (0.88mm) 4.5 x 4.1mm 38pin OLGA package. However, it does external component to operate: four LEDs, a multiplexer and an accelerometer chip. “MAXM86146 uses accelerometer data ...

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Rohm starts lab in China for automotive power electronics

Japanese power component supplier Rohm has teamed up with Chinese electric power train company Leadrive Technology to build a joint silicon carbide power laboratory in the Shanghai free trade zone. The two companies have been collaborating since 2017, when Leadrive was established. “Establishing a joint research lab centred on vehicle power modules and inverters utilising ...

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Alps squeezes linear force sensor into 1.50 x 0.85 x 0.68mm

You have to hand it to Alps for managing to make a surface-mount force sensor that is only 1.50 x 0.85 x 0.68mm while maintaining 2% of full scale linearity. The company is aiming at the business ends of force-sensitive drawing styli with the HSFPAR007A, as it will be know. It follows on from a larger ...

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Sponsored Content: Providing very high power DC-DC conversion for defence and other demanding applications

Engineers designing power systems today are under constant pressure to deliver ever higher levels of power, while also being constrained by size, weight, and cost considerations, writes Vicor. Introduction The defence sector, for instance, contains many applications where all these factors count, with an added requirement for high reliability. Examples include ground based vehicular systems, ...

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Imagination aims at automotive with ISO 26262 GPU and ADAS processor

Imagination technologies has created a GPU product line specifically for automotive use, building functional safety throughout the design to minimise the need for system-level safety intervention when meeting ISO 26262 requirements, according to the company. The automotive market is important to Imagination, which claims that over 200 million vehicles already have its GPUs in their digital ...

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Synaptics buys Broadcom IoT connectivity business

Synaptics is to buy  Broadcom’s Wi-Fi, Bluetooth and GPS/GNSS products and business in the IoT market for $250 million. Synaptics expects the transaction to add approximately $65 million in current annualized sales and provide significant revenue growth potential. The transaction is expected to be immediately accretive to Synaptics’ non-GAAP gross margins and non-GAAP earnings post-close. ...

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$20bn invested in China chip-makers this year

Chinese IC companies have had $20.5 billion of equity investment committed to them so far this year, led by the $6.5-7.5 billion to be raised from the sale of SMIC shares, reports the Nikkei. Last year’s investment in the sector was $9 billion. As wll as central government funds,  Shanghai and Beijing have also set ...

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