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Power Passives and Discretes

 




 

 

Power Passives and Discretes

April 2014
Stackpole expands anti-surge thru-hole resistor family

ASR / SPR Series anti-surge metal film resistors

Stackpole Electronics' ASR / SPR Series of anti-surge metal film resistors has expanded to include a mini ¼ watt body size. The ASRM14 has a max working voltage of 500 volts, overload voltage of 1000 volts, and capacitor discharge surge withstanding up to 2000 volts 10 times. In addition, the ASR / ASRM Series
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Date:
04/30/2014
High voltage normally-off GaN transistors are being introduced into the marketplace, and most of these devices will have low threshold voltages of below 2.5 Volts. This presents a severe challenge to conventional drivers, particularly when these very large GaN devices are used to provide 100 - 400A of switching
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Date:
04/29/2014
One of the biggest challenges for automotive lighting systems designers is how to optimize all the benefits of the latest generation of HB LEDs. HB LEDs require an accurate and efficient DC current source with a means for dimming and must include protection features. Additionally, these LED driver ICs must be
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Date:
04/29/2014

Buck-boost 3A supercapacitor charger features active capacitor balancing for fast charging

LTC3128 input current-limited buck-boost supercapacitor charger

Linear Technology introduced the LTC3128, a high efficiency, input current-limited buck-boost supercapacitor charger with active charge balancing for 1 or 2 series supercapacitors. The LTC3128 features an average input current limit that can be programmed up to 3A with +/-2% accuracy, preventing power source
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Date:
04/28/2014
International Rectifier, a leader in power management technology, will showcase its latest power management solutions at PCIM (Power Conversion Intelligent Motion) Europe 2014 which will be held at the Nuremberg Exhibition Center, Nuremberg, Germany, May 20-22, 2014. IR engineering and technical sales
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Date:
04/28/2014
AVX releases high-voltage automotive MLCC series

X7R High Voltage Automotive MLCCs

AVX, a leading manufacturer of passive components and interconnect solutions, has added a new series of high voltage multilayer ceramic chip capacitors to it automotive product lineup.  Qualified to AEC-Q200 and available in chip sizes spanning 1206 to 2220, the X7R High Voltage Automotive MLCCs are rated
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Date:
04/24/2014
AVX, a leading manufacturer of advanced passive components and interconnect solutions, will deliver two presentations about its high reliability base metal electrode (BME) and tantalum capacitor technologies at the 43rd annual Space Parts Working Group, which will take place April 22-23, 2014 in Torrance, Calif.
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Date:
04/22/2014
Steve Murphy of Teledyne LeCroy on trends in power test

Steve Murphy of Teledyne LeCroy

In this PSDcast Steve Murphy of Teledyne LeCroy talks to Alix Paultre of Power Systems Design about the current trends, challenges, and opportunities in the area of test & measurement. Once considered something more for high-end applications and troubleshooting systems, test is something being done at every
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Date:
04/21/2014
AVX expands its high temperature, SXP-style SMPS capacitor series

AVX’s SXP-style SMPS capacitors

AVX Corporation, a leading manufacturer of passive components and interconnect solutions, has expanded its series of high temperature, SXP-style, encapsulated, radial leaded, switch mode power supply (SMPS) multilayer ceramic capacitors (MLCCs) to include three high voltage ratings: 1500V, 2000V, and 3000V.
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Date:
04/21/2014
Automotive sector strengthens adoption of supercapacitors

Extreme motorsport environments have a direct influence on future road car technology

Overall, 2014 is expected to be a great year for the supercapacitor industry. Based on 2013 industry results, IDTechEx confirms its outlook for a 30% CAGR External Link in the next 10 years. The supercapacitor market will reach a value of $6 billion in 2024. In the larger application segments such as transportation,
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Date:
04/21/2014
Mouser Electronics, a leading engineering resource and global distributor of semiconductors and electronic components, announced it is distributing KEMET’s expanded portfolio which brings together leading-edge products from KEMET’s joint venture partner NEC TOKIN to buyers and design engineers worldwide. Mouser’s
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Date:
04/17/2014
Tim Kelliher of Movea on smart devices in the Internet of Things

Tim Kelliher of Movea

In this PSDcast Tim Kelliher of Movea talks to Alix Paultre of Power Systems Design about smart devices in the Internet of Things. Due to its very nature, the next generation of cloud-based web-oriented devices, both portable and tethered, are presenting multiple challenges and opportunites to the design community.
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Date:
04/17/2014
A battery small enough to be injected, energetic enough to track salmon

The microbattery created by Jie Xiao and Daniel Deng and colleagues, amid grains of rice

Scientists have created a microbattery that packs twice the energy compared to current microbatteries used to monitor the movements of salmon through rivers in the Pacific Northwest and around the world. The battery, a cylinder just slightly larger than a long grain of rice, is certainly not the world's smallest
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Date:
04/16/2014
In this episode of PSDtv Vishay describes their latest VRPower ICs and MOSFETs, including their SiC620R 70A DrMOS power stage for high-frequency switching,for Power Systems Design.
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Date:
04/15/2014
Tollgrade's battery-free Smart Grid voltage sensor delivers 0.5% Accuracy

Tollgrade LightHouse MV Power Sensor

Tollgrade Communications, an industry leader in redefining the global standard for reliability at the world’s largest electric utilities and telecommunications providers, announced the availability of their LightHouse® Medium Voltage (MV) Power Sensor, the first all-in-one line sensor for monitoring voltage
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Date:
04/15/2014
Allegro MicroSystems releases zero-speed differential peak-detecting Hall-effect sensor IC optimised for speed, timing and duty-cycle sensing

A1468 Hall-effect sensor IC

The A1468 from Allegro MicroSystems Europe is a true zero-speed differential peak-detecting Hall-effect sensor IC that is optimised for use in automotive speed, timing and duty-cycle sensing. The device is ideally suited to digital ring-magnet sensing or, when coupled with a magnet, ferromagnetic target sensing
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Date:
04/11/2014
From May 25 to 27, international experts will meet in Stockholm to share their expertise, recent developments and visions of SiC electronics applications. More than an overview on SiC industry, the International SiC Power Electronics Applications Workshop (ISiCPEAW) proposes a focus on power electronics applications.
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Date:
04/11/2014
Chris Reynolds of AVX on power design

Chris Reynolds of AVX

In this PSDcast Chris Reynolds of AVX talks to Alix Paultre of Power Systems Design about the development of power design as an engineering discipline and philosophy over the years as the industry has been both enhanced and disrupted by the advances in existing and new core technologies from materials to topologies
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Date:
04/11/2014
Alpha and Omega Semiconductor expands its 600V AlphaMOS portfolio with rugged solutions for lighting

600V AlphaMOS MOSFET for lighting apps

Alpha and Omega Semiconductor, a designer, developer, and supplier of power semiconductors and power ICs announced the release of their AOD4C60, AOD3C60, and AOD2HC60, additions to the 600V AlphaMOS portfolio, which combines features such as robustness, controlled switching and low on-resistance for high-performing
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Date:
04/10/2014
PEM to unveil next-generation Rogowski CWT current probes at PCIM Europe

A CWT Shielded Mini coil, threaded through the legs of a TO-247 semi-conductor package

In addition to its full range of Rogowski waveform transducers, probes and industrial sensors, which includes the CWT and RCT ranges, Power Electronic Measurements (PEM UK) Ltd will be using this year’s PCIM show to launch its next-generation CWT current probes for high-speed and high power-density applications. Clip-on
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Date:
04/10/2014
ABB, a leading power and automation technology group, has announced it will hold its popular annual Capacitor Application Seminar in Orlando on May 20-22 at the Caribe Royale Hotel and Convention Center in Orlando. This will be the 14th consecutive year for this Capacitor Application event. The seminar,
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Date:
04/09/2014
Trees go high-tech: process turns cellulose into energy storage devices

cellulose can be turned into the building blocks for supercapacitors

Based on a fundamental chemical discovery by scientists at Oregon State University, it appears that trees may soon play a major role in making high-tech energy storage devices. OSU chemists have found that cellulose – the most abundant organic polymer on Earth and a key component of trees – can
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Date:
04/08/2014
In this third article about power supply failures, the magnetics are examined for their contribution to the failure rate. These are usually the least understood of all components, and poor magnetics design can lead to many different failure mechanisms in power supplies. Power
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Date:
04/06/2014
The portable power application space is both broad and diverse. Products range from wireless sensor nodes (WSNs) that consume average power measured in microwatts to cart-based medical or data acquisition systems with multi-hundred Watt-hour battery packs. However, despite this variety, a few trends emerge –
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Date:
04/05/2014
Stackpole expands value range of MLF/MLFM series melfs

MLF/MLFM Series metal-film melf resistors

Stackpole has expanded the resistance range of its MLF / MLFM Series of metal film melf resistors. The ¼ watt and ½ watt sizes are now available in resistance values down to 10 ohms for TCR’s of 25 ppm and tighter. In addition, the ½ watt size is now available in resistance values down to 0.2 ohms for TCR’s
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Date:
04/04/2014
Operating rooms and clinical settings are crowded with instruments that pack in more functions and features every year, such as surgical tools with lights, lasers and video microscopes. The pressure for them to be smaller, lighter and easy to move around continues to grow.  Since the AC-DC converter is
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Date:
04/04/2014
The two-switch forward converter is quite popular with ATX power supplies/silver boxes in 150 W to 750 W output power levels, and also competes with Zero Voltage Switching (ZVS) LLC topologies. It is a hard-switched topology and does not operate in ZVS mode. But for that very reason it offers the benefit of
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Date:
04/04/2014
Tony Alita of United Chemi-Con at APEC 2014

Tony Alita of United Chemi-Con

In this PSDcast Tony Alita of United Chemi-Con talks to Alix Paultre of Power Systems Design about the electronics marketplace and their latest offerings at APEC 2014 in Ft. Worth, Texas. United Chemi-Con is headquartered in Rosemont, Illinois, with manufacturing and warehouse facilities located in Brea, California
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Date:
04/03/2014
A novel IGBT structure was developed with reverse-blocking capabilities comparable to the forward voltage rating of the IGBT. This new device, known as the RB-IGBT, was used to create a 3 level advanced neutral point clamping power converter that shows better loss characteristics than standard 3 level converters. The
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Date:
04/03/2014
An industrial conveyor belt usually consists of two or more pulleys, with a continuous loop of material (belt) that rotates about them. One or both of the pulleys are powered, moving the belt and the material on the belt forward. There are two main industrial classes of belt conveyors: general material handling
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Date:
04/03/2014
The classical, centralized power supply grids today face a transition into a so-called smart grid. This smart grid can be understood as a system of systems or the sum of interlinked minigrids with massively decentralized energy generation, storage and consumption. Though today’s large-scale power plants will
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Date:
04/03/2014
Typical switched-mode power converters today include circuitry for monitoring the current flowing through a switching power MOSFET or IGBT for regulating or limiting peak current levels. This is necessary to protect the switch against high peak currents that can damage components or saturate inductors. A low-ohmic
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Date:
04/01/2014
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