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Power_electronics Features

A 6in 1 IGBT Module Performance Evaluation Platform - issue 8/2011
Achieving good loss performance by high switching speed at low gate resistance is trading-off with the system's EMI behaviour. An evaluation platform has been developed to characterize 6in 1 IGBT...
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Automotive Power View All
LATEST FEATURE: cutting vehicle emissions with advanced power electronics - issue 2/2011 Read PDF
As car designers seek greater fuel efficiency to meet ambitious government-imposed emissions targets, improvements in power electronics and packaging technology canhelp to increase the number of kilometres travelled in exchange for the carbon dioxide emitted...
Avionic Power View All
LATEST FEATURE: DC/DC Converters meet most demanding applications - issue 7/2010 Read PDF
Many small lightweight DC/DC converters for military, civil aviation and other applications requiring greater reliability, combine technical features such as hign power density, hybrid think film technology, hermetic package, full military temperature range, multiple input and output voltage ranges, built-in front end EMI filter and power ratings up to 120W......
Battery Power View All
LATEST FEATURE: Multi-Topology Battery Charging from Milliwatts to Kilowatts - issue 7/2011 Read PDF
The practise of battery charging spans a wide variety of battery chemistries, voltages and current levels in many market segments. For example, industrial, medical and automotive battery chargers continue to demand higher voltages and currents as new applications are emerging for both existing and new battery chemistries, such as the proliferation of sealed lead acid (SLA) batteries in solar applications.
Digital Power View All
LATEST FEATURE: Digital Control Brings More Efficiency to DC/DC Converters-issue 5/2011 Read PDF
As energy prices rise and 'green' initiatives gain success, private companies and government regulators are ratcheting up the demands on power-supply manufacturers......
Industrial Power View All
LATEST FEATURE: Advantages of NPC Inverter Topologies with Power Modules Read PDF
Efficiency is becoming increasingly important in power electronics. Many applications are driven by the initiatives for reduced energy consumption. The technology leaders are inverter applications in the solar market, but uninterruptible power supplies and motor drives also have new targets for improved efficiency. This article shows alternatives for 3~ inverters with 700V DC-link voltage.
Inverter Design View All
LATEST FEATURE: Reliable and Safe insulation in high voltage inverter applications - issue 8/2010 Read PDF
The market trends in high-voltage inverter applications such as wind turbines, renewable energy harvesting sites and industrial motor control applications require increasing working voltage levels and higher efficiencies.
Measurement & Control View All
LATEST FEATURE: Unique Probe Measures Current in PCB Tracks - issue 7/2011 Read PDF
Observation and measurement of current in printed circuit board (PCB) tracks has always presented major difficulties. The only practicable way of doing it has been to cut the track and insert either a current shunt, or a loop of wire large enough to attach a conventional closed-loop current probe. In modern high density circuit designs this is normally impracticable.
Mobile Devices View All
LATEST FEATURE: Power Solutions forMobile TV Applications in Cellular Handsets Read PDF
Mobile phones have evolved from simplistic devices of portable communication to dynamic multifunctional pieces of technology. Today, despite drastic reductions in size, users demand more and more features, ranging from internet connectivity to video highlights. These features necessitate modifications to the power solutions deployed in the handset; very efficient power management solutions that are small in real estate are required in order to maintain battery life.
Power Capacitors View All
LATEST FEATURE: Simple and Highly Efficient Super Capacitor Charger - issue 8/2011 Read PDF
Super capacitors with high capacitive density are used in conjunction with batteries because super capacitors can charge and discharge continuously. Synchronous buck regulators can serve as a quick and simple charger to provide the adjustable fully charged voltage.
Power Converters View All
LATEST FEATURE: Inverting Buck Regulator Saves Space and Power - issue 7/2011 Read PDF
Designers are periodically faced with the requirement to generate a negative voltage rail in order to provide a bias voltage for applications using sensors which read signals both above and below ground. For many engineers, the first thought will be to use inverting regulated charge pumps: in fact, these are ideal for handheld applications where the output voltage required is less than -5V and the input is typically a lithiumion battery.
Power Diodes View All
LATEST FEATURE: Intelligent doping leads to success -issue 1/2010 Read PDF
Switched power supplies are everywhere today; it is only technology capable of delivering high efficiiency. Power factor correction supposedly can keep sine wave distortion and noise low in the power grid, but also creates additonal power losses.
Power Management View All
LATEST FEATURE: An Innovative Approach to Input Bridges Read PDF
Power management is increasingly important in all areas of electronic engineering; from the distribution of high voltage supplies to the effective monitoring of very low core voltages in digital devices. Through the efficiency benefits of replacing conventional input rectification with a self-driven synchronous rectification technique called Active Bridge concept, the challenge of delivering better power management solutions will be met.
Power Modules View All
LATEST FEATURE: IGBT Press-Packs for the Industrial Market - issue 7/2011 Read PDF
The standard Press-pack IGBT (PPI) basically uses the same packaging concept as Bipolar high power semiconductor devices. The main difference is that the high power semiconductor content in the package is sqaure IGBT chips arranged on a round molybdenum disc instead of large, round bipolar devices matched in size to the molybdenum disc and ceramic housing.
Power Semiconductors View All
LATEST FEATURE: High Voltage Thyristors for Soft Starters - issue 7/2011 Read PDF
In spite of significant development of converters on the basis of fully controlled semiconductor stacks (IGBT, GTO, IGCT), today it's still technically legitimate and demandable to use "traditional" high power thyristors in stacks of controlled rectifiers as well as in soft starters for electric motors. Usage of thyristors is especially relevant in case of operating in AC network of 6/10 kV and higher because the devices produced on the basis of such thyristors have no competition.
Power Supply Design View All
LATEST FEATURE: Demonstation of 10kW SiC half bridge DC/DC converter - issue 5/2011 Read PDF
In PEE's special session at PCIM 2011 the results of a 10kW transformer isolated DC/DC converter using 1.7kV SiC MOSFETs were presented. The converter is a half-bridge topology operating at 32kHz hard switched with a link voltage of 1kV.....
Renewable Energies View All
LATEST FEATURE: New SiC JFET Boost Performance of Solar Inverters - issue 4/2011 Read PDF
The article proposes a new normally-on Silicon Carbide (SiC) JFET device concept with monolithically integrated body diode. The new device combines ultra fast switching with ohmic forward characteristic and a zero recovery characteristic of its body diode.
Semiconductor Materials View All
LATEST FEATURE: The next stage in the commercialism of GaN-based power devices Read PDF
With the first commercially viable GaN based power device released into production, a new stage of implementation of this transformational technology is taking place.......
Telecom Power View All
LATEST FEATURE: MicroTCA Goes Digital Control Read PDF
Telecom Power - MicroTCA Goes Digital Control. Issue 8 2007
Thermal Management View All
LATEST FEATURE: Efficient LED Heat Management - issue 4/2011 Read PDF
LEDs are being used in more and more ways. Due to their brightness, high efficiency and long life expectancy, they continue to conquer domains that only recently were reserved for traditional light sources....
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