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EMerge Alliance expands DC power initiative to South Asia

July 24, 2014 9:57 am | News | Comments

The EMerge Alliance announced it will start teaming with local organizations and launched a new Industrializing membership category to bring the benefits of DC microgrids to industrializing countries in South Asia. A DC microgrid is a system of local power generation and distribution that can...

Efficiently Power that Op Amp

July 24, 2014 9:43 am | by Chris Glazer, Texas Instruments, www.ti.com | Blogs | Comments

In many applications, such as temperature sensing, two supply voltages are needed to power an op...

Synchronous boost controller reduces thermal stress with up to 98% efficiency

July 23, 2014 1:37 pm | Product Releases | Comments

Linear Technology Corporation (Milpitas, CA) announces the LTC3769, a synchronous step-up DC/DC...

Gate-drive optocoupler includes integrated flyback controller for DC-DC converters

July 23, 2014 1:26 pm | Product Releases | Comments

Avago Technologies (San Jose, CA) unveiled the ACPL-302J, a new smart gate-drive optocoupler...

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5100 W DC power supplies designed for high voltage and solar array applications

July 23, 2014 1:10 pm | B&K Precision Corporation | Product Releases | Comments

B&K Precision (Yorba Linda, CA) introduced three new models of high power programmable DC power supplies, models PVS10005, PVS60085, and PVS60085MR. The new PVS Series delivers output power up to 5.1 kW with excellent regulation, low noise, and fast transient response times....

Gate drive transformers feature a high HIPOT of 2700VDC

July 22, 2014 9:51 am | Pulse Electronics | Product Releases | Comments

Pulse Electronics Corporation (San Diego, CA) introduces its new gate drive transformers for high efficiency DC/DC converters. The PG1427 series has a high HIPOT of 2700VDC and functional insulation between the gate and the drive windings. These surface mount devices offer excellent coplanarity for easy solderability....

TVS diode arrays offer 60 percent lower clamping voltages than alternative technologies

July 21, 2014 2:40 pm | Littelfuse, Inc. | Product Releases | Comments

Littelfuse, Inc. (Chicago, IL) has introduced the SPHV (unidirectional) and SPHV-C (bidirectional) Series 200W Discrete TVS Diode Arrays (SPA Diodes) that are designed to protect sensitive equipment from damage due to electrostatic discharge (ESD) and other overvoltage transients far better than earlier technologies....

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DC-DC converter provides a full 108W of 12V power

July 21, 2014 10:15 am | Semiconductor Circuits, Inc. | Product Releases | Comments

Semiconductor Circuits, Inc. (Atkinson, NH) introduces the CPE9B36 “Cool Power Technologies” 12V, 9A wide input range 8th brick DC-DC converter. This open frame module provides a full 108W of 12V power @ 55C & 200lfm of airflow – ideal for bus converter or distributed power architecture applications....

Digital power monitor capable of industry’s widest common mode input voltage range

July 21, 2014 10:05 am | Intersil | Product Releases | Comments

Intersil Corporation (Intersil, CA) announced the ISL2802x family of digital power monitors capable of supporting a wide common mode input voltage range of 0V to 60V. The ISL2802x family is comprised of three devices offering a range of capability....

Any way the wind blows....

July 21, 2014 9:14 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

When I hear or read the phrase wind power, I immediately imagine tall-towered machines with tri-blade impellers tracing out huge arcing sweeps against partly cloudy skies. Your imagery may vary. Globally, wind generation capacity climbed to 318 GW in 2013 and has increased, year-over-year, an average of 37 MW since 2008....

Industrial grade filters for AC/DC power supplies are offered in 10-A and 20-A versions

July 18, 2014 12:42 pm | Schaefer Power Inc | Product Releases | Comments

Schaefer, Inc. (Hopkinton, MA) has introduced 10-A and 20-A industrial filters for its TER Series of low profile, AC/DC power supplies. The TER-10ASF and TER-20ASF are designed to attenuate high frequency noise on AC lines thereby reducing the level of conducted emissions.

New Material Puts a Twist in Light

July 18, 2014 11:40 am | by Australian National University | News | Comments

Scientists at The Australian National University (ANU) have uncovered the secret to twisting light at will. It is the latest step in the development of photonics, the faster, more compact and less carbon-hungry successor to electronics ...

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First ab initio method for characterizing hot carriers

July 17, 2014 2:16 pm | by EurekAlert! | News | Comments

Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) have developed the first ab initio method – meaning a theoretical model free of adjustable or empirical parameters – for characterizing the properties of "hot carriers" in semiconductors. Hot carriers are electrical charge carriers - electrons and holes – with significantly higher energy than charge carriers at thermal equilibrium.

How to drive LEDs with power factor correction in a single stage

July 16, 2014 1:47 pm | by Brian King, Texas Instruments, www.ti.com | Texas Instruments | Blogs | Comments

A PFC-SEPIC converter can be controlled using a traditional PFC-boost controller. An important characteristic of the SEPIC is the lack of isolation.  This limits the use of this topology to applications that don’t require safety isolation.  Think about applications that are completely sealed with no user-accessible energized parts, like street lights and high-bay lighting.

Multilayer ceramic chip inductors suit telecom, networking, medical, and industrial applications

July 15, 2014 3:21 pm | Pulse Electronics | Product Releases | Comments

Pulse Electronics Corporation (San Diego, CA) has extended its inductor product offerings with a new line of high frequency multilayer ceramic chip inductors. These RF ceramic inductors have low DC resistance, high Q values at higher frequencies, high self-resonant frequency, and high reliability.

World's smallest wirewound chip inductors offer Q values up to 64 at 1.7 GHz

July 15, 2014 12:12 pm | Coilcraft Critical Products & Services | Product Releases | Comments

The 0201DS ceramic chip inductors from Coilcraft (Cary, IL) combine high Q values and exceptionally high SRF in the smallest package sizes available. Features include 0201 size — the World's smallest  wirewound chip inductor — and 52 inductance values from 0.5 to 14 nH....

Wireless power transfer demonstration kit delivers 35 W and Operates at 6.78 MHz

July 15, 2014 12:00 pm | Efficient Power Conversion | Product Releases | Comments

Efficient Power Conversion Corporation (El Segundo, CA) announced the immediate availability of a complete demonstration wireless power transfer kit. The system is capable of delivering up to 35 W into a DC load while operating at 6.78 MHz (the lowest ISM band).

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Encapsulated PCB mount AC/DC linear supply offers tight regulation

July 15, 2014 11:07 am | Product Releases | Comments

Calex Mfg. Co., Inc. (Concord, CA) announced the Model 3.15.5-115, a low noise linear power supply which provides outputs of +/-15 VDC at 100 mA and 5 VDC at 500 mA. The 3.15.5-115 is powered by 115 VAC.

Labs characterize carbon for batteries

July 15, 2014 9:33 am | by EurekAlert! | News | Comments

Lithium-ion batteries could benefit from a theoretical model created at Rice University and Lawrence Livermore National Laboratory that predicts how carbon components will perform. The model is based on intrinsic characteristics of materials used as battery electrodes....

Deployable renewable energy systems power critical equipment on the battlefield

July 14, 2014 4:31 pm | by Chris Warner, Executive Editor | Articles | Comments

The United States Department of Defense (DoD) is the largest consumer of energy in the United States. Much of that energy is consumed in harsh environments to power tanks, armored vehicles, fighter jets, generators, small hospitals, command outposts and operations centers out in the field. All of these applications are critical....

AETI launches subsidiary in Brazil

July 14, 2014 10:50 am | News | Comments

American Electric Technologies, Inc. announced the launch of a new company subsidiary, M&I Electric Brazil. M&I Electric provides a full range of turnkey power delivery solutions including power distribution, power conversion, power control/automation systems, and power construction and

Solar expectations rise for Brazil as auctions announced

July 14, 2014 10:01 am | News | Comments

Brazil’s plan to auction 3.5 gigawatts (GW) of photovoltaic (PV) capacity through 2018 comes as welcome news for the global solar industry as the ambitious plan is expected to catalyze solar growth in Latin America, according to a new report from IHS Technology (NYSE: IHS). The Brazilian Electricity Regulatory Agency (ANEEL) announced a so-called...

50 VA rugged pure sine wave inverter targets CCTV systems

July 11, 2014 10:29 pm | Product Releases | Comments

ABSOPULSE Electronics (Ottawa, Canada) has released the CSI 50-24/24-FT, an industrial quality low voltage DC-AC sine wave inverter specifically designed for powering CCTV systems. The inverter uses...

Current sense resistors combine low TCR down to ±2 ppm/°C with power ratings to 80 W

July 11, 2014 8:50 pm | Product Releases | Comments

VPG (Malvern, PA) announced that its Powertron resistor brand has introduced the first seven devices in its S Series of precision foil current sense resistors. Offering a TCR of ±2 ppm/°C — said to be the industry's lowest for high-power current shunts…

Kasey's Korner: Removing toxic materials from batteries

July 11, 2014 9:55 am | by Jon Dipierro, Multimedia Production Specialist | Videos | Comments

Though lithium-ion batteries have a lot to offer, they also have some issues-- including using toxic elements that are rare and difficult to work with. But they may be the future of portable electronics batteries, so it’s vital that researchers find another way of creating the batteries.

COTS demi-brick size converters come in package size less than 2 ounces

July 10, 2014 4:29 pm | Synqor, Inc. | Product Releases | Comments

SynQor, Inc. (Boxborough, MA) announces the release of its Military Commercial-Off-The-Shelf (COTS) Demi Brick Series of DC-DC converters. The new Demi Brick is an isolated and fully regulated converter in a 1.55" x 1.52" x 0.50" size package....

25-Watt 1”x 1” DC/DC converter offers a 2:1 input range

July 9, 2014 11:40 am | Contech, A Division Of Calex | Product Releases | Comments

ConTech (Concord, CA) announced the “QMS” Series of DC/DC converters. The QMS Series offers up to 25 Watts of fully regulated output power. The series offers a 2:1 input range with nominal input voltages of 12 V, 24 V, and 48 VDC.

Researchers led by Stanford engineer figure out how to make more efficient fuel cells

July 9, 2014 11:34 am | by EurekAlert! | News | Comments

Solar power and other sources of renewable energy can help combat global warming but they have a drawback: they don't produce energy as predictably as plants powered by oil, coal or natural gas. Solar panels only produce electricity when the sun is shining, and wind turbines are only productive when the wind is brisk....

IEEE 802.3bt: Not all detection schemes are equal

July 9, 2014 10:21 am | by David Abramson, Texas Instruments | Texas Instruments | Blogs | Comments

Can you safely apply power to equipment connected to a PoE-enabled switch when performing detection on all four pairs in parallel? In order to answer that question, let’s look at some of the consequences of detecting PDs on all four pairs (also referred to as both alternatives) in parallel.

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