TI Intros Sensorless, Brushless DC Motor Driver to Spin Motors Instantly
Texas Instruments Incorporated (TI) has expanded its sensorless, brushless DC (BLDC) motor driver portfolio with a new device designed for high efficiency and low noise, which requires a low external component count of only one capacitor. The DRV10963 is a 5-V, 3-phase sensorless BLDC motor driver that simplifies layout and reduces board space by 80 percent, allowing designers to create smaller, sleeker, more innovative designs. It includes integrated commutation logic, which enables instant motor spin with no code development, while its 180-degree pure sinusoidal outputs provide an efficient and quiet drive.
http://www.powerpulse.net/story.php?storyID=27817
UltraVolt Expands Offering of Precision HV Unipolar and Bipolar Amplifiers
UltraVolt, Inc. announced today the expansion of its popular line of precision high-voltage amplifiers - the HVA Series - capable of operating in DC, reversible, and amplifier modes. The new line of precision high-voltage amplifiers, the 10HVA-20HVA Series, is available with unipolar or bipolar output at 0 to 10kV, 15kV and 20kV. Together with UltraVolt's original line of high-voltage amplifiers, the HVA Series, designers have (8) voltage ranges choices from 0 to 1kV through 20kV.
http://www.powerpulse.net/story.php?storyID=27819
Freescale Extends QorIQ Qonverge B4 Family to Industrial and General-Purpose Markets
Freescale Semiconductor has added advanced floating point technology to its groundbreaking QorIQ Qonverge B4 product family, creating compelling new solutions for the industrial and general-purpose markets. Freescale's B4420 and award-winning B4860 system-on-chip (SoC) solutions, powered by SC3900 StarCore technology, are the first B4 family members to include floating point arithmetic. Freescale's advanced floating point technology is engineered to exceed the stringent requirements of computation-intensive applications that require high-precision numerical accuracy, such as radar, medical and media imaging, MAC-scheduler processing in Cloud-RAN, video analytics, security, industrial automation, and test and measurement systems.
http://www.powerpulse.net/story.php?storyID=27822
IR Expands PowIRaudio Family with 60V Integrated Power Modules
International Rectifier Corp. (IR) announced the expansion of its PowIRaudio™ family with the introduction of the single channel IR4321M and dual channel IR4322M integrated power modules. The 60V IR4321M and IR4322M complement the existing product offering and expand the power capability of low load-impedance Class D audio systems in applications including car audio systems, tabletop audio systems, active speakers and musical instruments (with integrated amplifiers).
http://www.powerpulse.net/story.php?storyID=27823
Toshiba Introduces Low RDS(ON) P-ch MOSFETs for Mobile Devices
Toshiba America Electronic Components, Inc. has announced the addition of three new high current P-ch MOSFETs: the SSM6J505NU, SSM6J501NU and SSM6J503NU. Supporting high currents for high power dissipation packages, the new MOSFETs make ideal charging switches for smartphones and other mobile devices with high current charging circuits.
http://www.powerpulse.net/story.php?storyID=27824
Two Three-phase, Transformer-based UPS Models from Emerson Earn ENERGY STAR
Emerson Network Power announced two models of the Liebert® NXL uninterruptible power supply (UPS) earned ENERGY STAR® qualification, the 480V input 800 and 1100 kVA models. The highest-capacity transformer-based UPS in the industry, the Liebert NXL offers the operating efficiency typically found in a transformer-free UPS with the added dependability and fault tolerance the transformer provides. Both qualified models of the Liebert NXL UPS are available for 60 Hz applications across North America.
http://www.powerpulse.net/story.php?storyID=27820
Four-Junction Solar Cell for Concentrator Photovoltaic Systems Achieves 43.6% Efficiency
Soitec (Euronext) announced today the industry's first four-junction solar cell device, which works under concentrated sunlight, putting the company on the solar-energy industry's technology roadmap at a world-class level of 43.6 percent efficiency. This technology development, made possible through strong collaboration between solar cell device and epitaxial growth centers of expertise combined with Soitec's decades-long leadership in substrate-bonding and layer-transfer technologies, validates the unique roadmap enabling, thanks to the four junctions structure to target the 50-percent efficiency level. This roadmap marks a major competitiveness breakthrough in the photovoltaic industry.
http://www.powerpulse.net/story.php?storyID=27821
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White Papers (Updated March 11, 2013)
"Power Modules for Charger Applications"
Sponsored by Vincotech
http://www.powerpulse.net/whitepapers.php?s=1#19
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PowerViews (Updated April 29, 2013)
"Maximising Synergies between Power Electronics and ICT for improving Energy Efficiency"
Mike Hayes
Senior Program Manager, Tyndall National Institute
Around 40% of the world’s energy usage is in buildings and 50% is used in motors and drives. The power electronics “DNA footprint” is considerable in these domains. Savings of 10-30% are possible. A significant portion of these savings can be derived from embedding ICT into power electronics solutions.
http://www.powerpulse.net/powerViews.php?pv_id=41&s=052320131
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Feature Article (Updated October 22, 2012)
Class-D switching amplifiers are helping audio designers create personal multimedia devices and home audio/visual systems that demonstrate how compact and stylish equipment can also deliver high sound quality and high audio output power. The key to this breakthrough, providing freedom from the large and bulky boxes housing traditional audio products, lies in the class-D amplifier’s high energy efficiency, which is typically around 90%. This allows designers to reduce or eliminate heatsinks as well as using smaller-sized PCBs and smaller components such as transformers, connectors and power supplies.
http://www.powerpulse.net/techPaper.php?paperID=187
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