600V three-phase gate driver with smart shut-down

STMicroelectronics is aiming at all-n-channel three-phase bridges with a 600V six-channel gate driver IC. Called STDRIVE601, it is intended to operate with mosfets or IGBTs and is protected against negative voltage spikes down to -100V, and responds to logic inputs in 85ns. It has what the firm describes as smart-shutdown circuitry, turning off “the gate-driver outputs immediately ...

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Arm makes IP access easier

Today, Arm initiates a new model  for customers to access and license its IP. Called Arm Flexible Access, the model allows IC designers to initiate projects before they license IP and pay only for what they use at production, giving designers more freedom to experiment, evaluate and innovate. “By converging unlimited design access with no ...

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5G Rail Next to test infotainment service for Seoul Metro.

5G RailNext, a consortium led by Cisco which includes Soluis and Ampletime of London, Strathclyde University and Glasgow Council, has won a competition to see how 5G can best provide infotainment services across the Seoul Metro system (pictured). The project will deliver Augmented Reality (AR) and Mixed Reality (MR) content – including travel information, video ...

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SK Telecom first to introduce 5G roaming

SK Telecom says it started the world’s first 5G roaming service today through a strategic partnership with Swisscom,  Swisscom started to roll out its 5G network on April 17 and provides 5G service in 110 cities and villages including Zurich, Geneva and Bern as well as rural and touristic areas.  SK Telecom’s customers using Samsung ...

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TI claims lowest quiescent current for power switching regulator

TI has introduced a switching regulator and claimed it has the industry’s lowest operating quiescent current at 60 nA – 1/3 that of the nearest competitive device. The TPS62840 synchronous step-down converter delivers very high light-load efficiency of 80% at 1-µA load. The new DC/DC converter’s wideinput voltage (VIN) range of 1.8 V to 6.5 ...

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SD-WAN enables mobile and remote employees

In Q1 the market for SD-WAN (software defined WAN), including appliance and control and management software, rose 8% on Q4, says IHS Markit. VMware led the SD-WAN market with a 20% share of revenue, followed by Cisco at 13% and Aryaka at 12%. “Financial enterprises are rearchitecting their legacy WANs with SD-WAN to utilize traffic-routing ...

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SiC photonics resonator has Q=160,000 for CMOS

Silicon carbide can be used to add telecoms-wavelength (1.55μm) emission to CMOS, according to researchers at MIT and Singapore University of Technology (SUTD), who demonstrated an amorphous SiC ring resonator with a Q of 1.6×105, claimed to be the highest quality factor achieved in a SiC micro-ring resonator. “We are able to show one order of ...

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