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Technical Features

January 2012
Developing a New Approach to Predicting the Behavior of GaN Devices

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Figure 1: Infineon’s four-step qualification plan for CoolGaN™ devices

Developing a New Approach to Predicting the Behavior of GaN Devices
Oliver Haeberlen, Fellow Power Semiconductor Devices & Technologies, and Tim McDonald, Senior Consulting Advisor to the CoolGaNâ„¢ Development Program, both at Infineon Technologies

­Introduction Silicon semiconductor technology has evolved considerably over the past 50 years, during which time, multiple failure modes affecting device reliability have been discovered, researched, and addressed. This has led to the development of models and equations for failure modes like time-de
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Date:
02/24/2023
Smart Energy Metering Applications

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Figure 1: Single-phase anti-tamper smart meter

Smart Energy Metering Applications
Petre Minciunescu, Systems engineer, Energy Metering Group & Brian Kennedy, Applications engineer Isolation Group, Analog Devices

DC tolerant current transformers have long been used to sense ac currents in smart energy meters, but they have drawbacks and can be expensive. For some applications, resistive shunts make
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Date:
01/31/2012

Cost-Optimized Solar

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Figure 1: Typical Solar Panel Output Current & Power vs. Output Voltage Curve

Cost-Optimized Solar
Willie Chan?, Sr. Product Marketing Engineer?, μModule Power Products, Linear Technology

The influence of clouds, trees, dirt, on the solar cell panel and the rotation of the sun causes problematic fluctuations in the amount power generation. The typical output current and
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Date:
01/31/2012
Power Module Mounting

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Figure 1a: State-of-the-art configurations

Power Module Mounting
Patrick Baginski, Field Application Engineer, Vincotech GmbH

The mounting option for power modules has always been somewhat limited, meaning that the designer is constrained to a standard configuration. These new modules overcome this problem. Most
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Date:
01/31/2012
Miniaturized Modules

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Figure 1: A wireless handset may need to cover 13MHz to 6GHz in future - figures show the Murata estimate for the take-up of various technologies

Miniaturized Modules
Mark Porter, Technical Development Manager, Murata Power Systems Fleet, UK

Ceramic technologies are complementing semiconductor advances in enabling ever-more sophisticated and smaller wireless electronic systems. Improvements in ceramic materials technology have
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Date:
01/31/2012
Spoilt for Choice - Power Switch Technologies for Renewable Applications

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Figure 1: Offshore wind park ï½Lillgrundï½ in Sweden is connected to the main land via a 138kV high-voltage DC link (picture: Siemens)

Spoilt for Choice - Power Switch Technologies for Renewable Applications
Alfred Hesener Marketing Director - Europe Fairchild Semiconductor

With 7 billion human beings living on this planet, and at the same time, the energy consumed by human beings is shifting more and more from oil to electricity Improving power density
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Date:
01/07/2012
Battery Management
Battery Management
Odd Jostein Svendali, Field Application Engineer, Atmel, Norway

Lithium Ion batteries are becoming the technology of choice for most portable applications requiring rechargeable batteries. The advantages include high energy density per volume and weight, high
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Date:
01/01/2012
Challenging Charging
Challenging Charging
George Paparrizos, Summit Microelectronics

This article discusses the selection process for deciding the battery charging topology in portable, consumer applications. The article analyzes system and battery conditions under which the benefits
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Date:
01/01/2012
Digital Power Conversion

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Figure 1a: The effects of parallel connecting two power supplies without share control

Digital Power Conversion
Andrew Skinner, Chief Technology Officer, TDK-Lambda UK

Power supplies with digital control are gaining in popularity. However the term ‘digital control' is commonly applied to two quite different meanings. The two main terms are; ‘Digital power
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Date:
01/01/2012
Digital Power Delivers Auto-Compensation

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Figure 1: GUI view of Auto Compensation page

Digital Power Delivers Auto-Compensation
Chris M. Young Senior Manager, Digital Power Technology, Intersil Corporation

Stability is a critical operational requirement for power supplies. In regulated power supplies, the stability is controlled, by a large part, by the characteristics of the feedback path.
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Date:
01/01/2012
Delivering Precision Performance

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Figure 1: Supplies are margined by changing the resistor connected to the Trim/FB node

Delivering Precision Performance
Randy Skinner, Staff Product Marketing Engineer, Lattice Semiconductor

Modern microprocessors, FPGAs and other complex ICs require accurate power supply voltages, often more accurate, in fact, than the tolerances provided by commodity low-dropout regulators (LDOs)
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Date:
01/01/2012
USB Modem Design
USB Modem Design
John Constantopoulos, Systems Engineer, WW Low Power DC-DC, Texas Instruments

With USB being a standard interface in PC peripherals, the number of applications that can be powered from a USB port is increasing at an exponential rate. The need for flexibility and continuous
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Date:
01/01/2012
Keep on Running
Keep on Running
Tom Karpus, Semtech Corporation

These days, people can't live without cell phones. This is not a monumental revelation to anyone who has been at an airport, a shopping mall, or a park watching their children play. We close business
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Date:
01/01/2012
Antenna Tuning Technology
Antenna Tuning Technology
Tero Ranta and Rodd Novak, Peregrine Semiconductor

Thinner form factors, mobile TV and the requirement for power efficiency are placing extreme demands on the antenna, requiring a new approach to keep calls on track and antennas inside the handset. Footprints
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Date:
01/01/2012
Portable Efficiency
Portable Efficiency
Peter A. Khairolomour, Technical Marketing Manager, Fairchild Semiconductor

The handset world is seeing a burgeoning need for memory storage. This article discusses memory trends and different methods of powering SD Flash memory. The need for memory is being driven
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Date:
01/01/2012
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