Page 46

EETE APR 2015

Never lose track of things This month, DecaWave is offering EETimes Europe’s readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband Reader O f f er (UWB) indoor location and communication DW1000 chip in different real-time location system topologies. Worth €947, each kit allows designers to prove a concept within hours and have a prototype ready in days. Based on the two-way ranging scheme, the kit lets you test three different topologies: Using 3 anchors and 1 tag, the tracking mode covers applications use cases around asset tracking, logistics and factory automation. The user collects the 2D/3D position of the tag relative to the anchor’s position. Based on 1 anchor and up to 3 tags, the geo-fencing mode enables users to monitor if the tags are within certain pre-defined perimeters around the anchor. Use cases include collision avoidance, security perimeter around machinery, child monitoring or securing valuables. The navigation mode also uses 3 anchors and 1 tag. Connected directly to the tag, the user is able to walk around and visualize its current position, allowing to test human and robotics navigation scenarios. The DW1000 chip allows the location of objects to a precision of 10 cm. Check the reader offer online at www.electronics-eetimes.com Single-channel comparator extends battery life in low-voltage portable devices Diodes Incorporated’s new generation AZV3001 single-channel comparator has been developed for use in battery-powered equipment that needs to operate at low voltage. The singlechannel device consumes 6μA and provides guaranteed operation from 1.6V up to 5.5 V, making it wellsuited for use in systems with nominal supplies of 1.8 V, 3.0 V or 5.0 V, such as mobile phones, tablets and notebook computers, where the device delivers superior performance and helps extend battery life. The comparator features internal hysteresis in order to provide immunity to undesirable small voltage fluctuations, and uses a complementary output stage, comprising P- and N-channel MOSFETS, in order to drive outputs with a full rail-to-rail voltage swing. Miniaturized package options help reduce PCB board space: the AZV3001 is offered in a 6-pin X2-DFN1410-6 package and the dual-channel AZV3002, available later in 2015, in an 8-pin U-FLGA1616-8 package. With a low propagation delay of 0.8 μs, a low input bias current of 1 pA and no risk of phase inversion when the input is overdriven, these comparators offer embedded system design engineers a general-purpose solution to almost all lowvoltage portable device requirements. Diodes Incorporated www.diodes.com Multi-die emitter provides single-source beam control in directional lamps Philips Lumileds has launched multi-die emitter that provides a more affordable LED option for makers of directional lamps that offers single-source beam control. The Philips Lumileds LUXEON 5258 multi-die emitter claims to enable the most cost effective design of PAR 16, PAR 20, MR16 and GU10 lamps using existing drivers at 24 V and 96 V. “We are providing a high flux, high efficacy LED that improves the quality of light and avoids the unfortunate ‘showerhead effect’ that users experience with distributed, multi-die solutions. The LUXEON 5258 can achieve lower system costs compared to solutions using multiple LEDs for 35 W and 50 W MR16 today,” explained Ahmed Eweida, Product Manager for Philips Lumileds. Lumileds initial offering of the LEDs in the 5258 plastic package is in warm white CCTs with a minimum CRI of 80. The 24 V solutions provide 425 lumens at 110 lm/W, while the 96 V solutions provide 400 lumens at 105 lm/W. Both can be driven to deliver up to 650 lumens. A 5 mm diameter optical source enables precise beam control in directional applications. The LUXEON 5258 is designed to provide the best efficacy and flux metrics with superior reliability and droop curve than all competing solutions on the market. Philips Lumileds www.philips.com ZigBee motion detector dev kit targets home monitoring GreenPeak Technologies announced a new addition to its Smart Home portfolio with the launch of a reference design for a low cost Passive Infra-Red (PIR) sensor, enabling application developers to quickly build a ZigBee enabled motion sensor ready to be produced with Green- Peak’s qualified ODMs. The reference design is based on GreenPeak’s GP490 ZigBee communication chip and uses the patented antenna diversity mechanism for enhanced wireless range and full home coverage. The motion sensor’s range detection, optimized with advanced signal processing, provides enhanced detection performance for full room coverage, as required in multiple Smart Home applications. This motion detector is capable of disregarding motion caused by pets, eliminating false alarms. The reference design includes all required tools and examples to implement a ZigBee PIR motion sensor application, with an example motion sensor application, including the ZigBee stack and all necessary application specific components. Software Development tools (IDE, debugger) and a set of user manuals and application notes are included as well. To assist during the HW development, GreenPeak provides a set of reference layout and schematic files. GreenPeak Technologies www.greenpeak.com 46 Electronic Engineering Times Europe April 2015 www.electronics-eetimes.com


EETE APR 2015
To see the actual publication please follow the link above