Four community improvement projects receive $29,000 in environmental funding.
North Carolina water quality gets boost from EPA
Agency designates multi-million dollar grant to help ensure safe drinking water, clean beaches, watersheds and streams.
SoCal wastewater treatment project certified in compliance with CEQA by SD Superior Court
Sterling Natural Resource Center receives favorable ruling from San Diego Superior Court.
PA American Water to replace customer-owned lead service lines
Utility files request with Pennsylvania Public Utility Commission to bear full cost of replacement program.
CH2M, Honeywell partner on Quanta Resources Corporation Superfund site remedial action
CH2M will provide construction management for the project, one of the largest in-situ stabilization remediation projects of its kind.
SnowPure Water Technologies receives President’s “E” Award for Exports
Award is the highest recognition any U.S. entity can receive for making a significant contribution to the expansion of U.S. exports.
U.S. Department of Commerce invests $1.5M for water infrastructure improvements in Oklahoma
Funding will support the city of Stilwell, OK’s critical wastewater treatment improvements and bolster manufacturing in the region.
IQD oscillators have low phase jitter
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
PCIM: Heat spreader keeps shape despite thermal cycling
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
PCIM: BLDC motor chip has built-in algorithm
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