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EETE SEPTEMBER 2012

Harsh environment closed loop servo High accuracy temperature sensor enables inclinometers/accelerometers adjustable alerts The Sensorex SX41200 and SX41400 series from Meggitt Linear Technology Corporation has introduced the LTC2996 Sensing System are two families of rugged, gravity referenced high accuracy temperature sensor for 2.25 V to 5.5 V sys- closed-loop servo inclinometers/accelerometers designed for tems. The LTC2996 measures a remote diode’s temperature use in harsh environments. with ±1°C accuracy and its own die Available in 12 individual temperature with ±2°C accuracy models per series, with while rejecting errors due to noise angular measurement ranges and series resistance. The device from ±3° to ±90°, and choices provides a voltage-proportional-to- of single axis (SX41200) absolute-temperature (VPTAT) output, and twin axis (SX41400) versions, their highly rugged design as well as individual undertemperature and overtemperature incorporates a galvanometric pendulum sensing element with alert outputs, defined by user-adjustable thresholds. No code hydromechanical damping, combined with an optical position is required to configure the device. With a 200 µA quiescent sensor, with 4-20 mA or ±5 VDC (±5%) output, proportional to current, the chip simply provides a precise, space-saving, sine of the angle of tilt. Inertial sensing elements are contained micropower temperature monitoring solution. Its accuracy, within rugged, watertight IP65 sealed aluminum housings. configurability and code-free operation caters to a wide They are powered by a single, unregulated voltage supply and variety of applications, including system thermal control, en- feature a bidirectional output. Additional options, available ergy harvesting, desktop and notebook computers, network upon customer request, include a ±0.02% non-linearity error servers and environmental monitoring. Users can choose to specification (excluding ±90° range), special bandwidth, zero measure internal or remote temperature and easily adjust the offset (unipolar output) and special range and output signals. temperature thresholds with resistive dividers. Temperature All Sensorex SX41200 and SX41400 series models conform to conversions are updated every 3.5 ms to provide systems both European EMC and railway testing standards. with sufficient time to react to alerts. Meggitt Sensing Systems Linear Technology Corporation www.meggittsensingsystems.com www.linear.com Powerline and wireless communications SoCs for smart energy management contact@absopulse.ch Greenvity Communications has developed the first hybrid system-on-chip (SoC) family that integrates powerline com- www.absopulse.ch munication (PLC) and wireless capabilities on a single chip. The Greenvity Hybrii chip family supports both the HomePlug High-Performance, high reliable Power Supplies Green PHY PLC and ZigBee worldwide standards simul- 15 W to 12 kW+ adapted to your challenging projects taneously to enable robust l AC/DC Power Supplies and intelligent connectivity for a variety of home and building energy management and l Rectifiers and Battery Chargers electric vehicle applications. The first family members include l DC/DC Converters the Hybrii-XL chip for smart grid, smart energy management, l Sine-Wave Inverters industrial and consumer applications, and the Hybrii-PLC l Phase and Frequency Converters device for rugged, high temperature conditions. Hybrii-XL enalbes smart grid products that integrate both PLC and l AC- Input, DC-output UPS systems ZigBee communication capabilities. The Hybrii chip automat- l Open Frame ically chooses the best medium to transmit energy-related l Wall mount data—wirelessly or via existing power lines—and extends the l 19” Cassettes range to cover an entire home or building. If wireless nodes l DC-input dimmable back-light inverters are noisy due to interference then PLC will be enabled and vice versa, ensuring reliable communication. The Hybrii-XL for LCD displays (GV7011) integrates HomePlug Green PHY PLC and ZigBee l Complete Power Systems in 19" and 23" Racks wireless functions for low cost and low power consumption. Both HomePlug Green PHY PLC and ZigBee can operate si- ABSOPULSE Marketing Europe GmbH multaneously. The GV7011 offers high performance with data PoBox 1501 rate up to 9.8 Mbps in PLC mode and 250 Kbps in wireless 8620 Wetzikon CH mode. The Hybrii-PLC chip (GV7012) was designed to sup- Tel. +41 78 896 50 49 port electric vehicle and electric vehicle supply equipment Fax +41 44 944 38 44 (EVSE) or battery chargers. It can support up to 9.8 Mbps of data rate over power line. Write us: contact@absopulse.ch Greenvity Communications www.greenvity.com See us: www.absopulse.ch www.electronics-eetimes.com Electronic Engineering Times Europe September 2012 41


EETE SEPTEMBER 2012
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