Four community improvement projects receive $29,000 in environmental funding.

 

Award is the highest recognition any U.S. entity can receive for making a significant contribution to the expansion of U.S. exports.

 

CH2M will provide construction management for the project, one of the largest in-situ stabilization remediation projects of its kind.

 

Funding will support the city of Stilwell, OK’s critical wastewater treatment improvements and bolster manufacturing in the region.

 

Aiming at IGBT modules, Japanese heat spreader maker ALMT has developed a thermal base plate alloy that improves heatsink contact. IGBT base plates are subtly convex (see diagram) so that when they are mounted on a flat base plate, the screw holes have a gap beneath them (~200μm). When the screws are tightened, the curve …

Read full article: PCIM: Heat spreader keeps shape despite thermal cycling

IQD, the Somerset quartz crystal specialist, has a  new STXO series of surface mount clock oscillators  with an ultra-low integrated RMS phase jitter of 256fs at 2.5V and RMS period jitter of 1.4ps over 10,000 cycles. With a phase noise level of -138dBc/Hz @ 1kHz and -163dBc/Hz at the noise floor, this new series is ideal for …

Read full article: IQD oscillators have low phase jitter

Allegro has made an led driver with a neat twist – it includes a magnetic Hall sensor. Via a pin, the leds can be set to come on when the magnet is near, or off when the magnet it near – it works with either a north or a south magnetic pole. . Led driver …

Read full article: LED driver includes magnetic sensor for that ‘fridge door’ effect

It’s the way of technology that some possibilities tickle us more than others, eliciting that unmistakable sense of wonder that such things can really be done. For myself, I’m a sucker for flight tracker information.

Read full article: How to build your own Raspberry Pi flight tracker using SDR hardware

Allegro MicroSystems has announced a 3-phase sensor-less brush-less dc (BLDC) fan driver IC with sinusoidal outputs to minimise audible noise and vibration. A5931 on left, and conventional equivalent on right The chip, called A5931, includes output mosfets and a built-in control algorithm running on a state-machine – easing ASIL automotive qualification, claimed the firm, because …

Read full article: PCIM: BLDC motor chip has built-in algorithm

An IEEE 802.3bt Powered Device (PD) interface controller for applications requiring up to 71W of delivered power has been launched by Linear Tech. The new Power over Ethernet (PoE) standard – IEEE 802.3bt – increases the power budget to enable new applications and features, while supporting 10 Gigabit Ethernet (10GBASE-T) and maintaining backward compatibility with …

Read full article: LTC launches PoE interface controller