Technical Features

November 2010

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Figure 1: Power stage of the flyback converter (simplified)

Eleazar Falco, FAE, Würth Elektronik eiSos / Editor, Gerhard Stelzer

Isolated flyback converters often use optocouplers in the feedback loop to regulate the output voltage. As part of the compensation circuit, its parameters such as CTR influence the control loop and must be taken into account in the flyback converter design. The flyback converter is an isolated switching power

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Date:

04/01/2024

Figure 1: The design and optimization of a thermoelectric energy harvesting system is highly dependent on the relationships of these elements

Thermoelectric Energy

By Dave Koester, Vice President of Engineering, Nextreme Thermal Solutions

Advances in distributed sensors and sensor networks have led to an increased interest in renewable and autonomous power sources. The use of waste heat is an attractive source of energy for many

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Date:

11/24/2010

Figure 1: Circuit diagram of flowNPC 0 module FZ06NPA070FP with parallel switch (combination of MOSFET and IGBT) as outer switch

Optimizing Power Modules

By Werner Obermaier, Head of Product Marketing, Vincotech GmbH

In a world where energy efficiency is king, engineers, managers and purchasing departments alike need to examine carefully the route their company takes in the development of new products. It is

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Date:

11/24/2010

Wafer storage facility in Santa Clara CA

Designer's Perspective

Eric Marcelot, Marketing Manager, High Rel Semiconductor Solutions, e2v

It is estimated that 3% of the global pool of electronic components is made obsolete each month, and on a long term defence project, typically 50-70% of the semiconductor products incorporated

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Date:

11/23/2010

Source: Ericsson

Powering Communications

By Patrick Le Fï½vre, Marketing & Communication Director, Ericsson Power Modules

Since the origin of mobile communication, various techniques based on software and hardware have been implemented to optimize energy efficiency. In every telecommunication system there are DC/DC

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Date:

11/23/2010

Optimized Industrial-System PSUs

By Graham Proud European Field Applications Engineer CamSemi

The universal drive to reduce power consumption that Energy Star and similar initiatives have so successfully promoted within consumer-level equipment is starting to take a real hold within industrial

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Date:

11/23/2010

Figure 1: Topology of a high-efficiency AC-DC power supply

Power Efficiency Breakthrough

By John Stephens, Technical Project Manager, European System Design Centre, Future Electronics

With demand for high efficiency becoming part of product specification across the whole load range, design engineers are reviewing AC-DC power supply topologies with the specific aim of reducing power

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Date:

11/23/2010

Figure 1: Talk time analysis of a 3G PA with and without FAN5902 under WCDMA signal modulation and 1000mAh Li-Ion battery. The power distribution function is DG09 and can be found in GSMA's white paper "Battery Life Measurement Technique, v4.7".

Communications Power Solutions

By Wayne Seto, Technical Marketing Manager, Mobile Power Solutions, Fairchild Semiconductor

What is more annoying? Running out of battery or constantly needing to recharge it? With the proliferation of cellular mobile handsets, especially smartphones in the world today where people are

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Date:

11/22/2010

Figure 1: Traditional approach

Comms Continuity

By Shyam Chandra, Product Marketing Manager, Lattice Semiconductor

The explosion in data traffic and the introduction of "Smart Phones" such as the Apple iPhone are fuelling the need for the rapid expansion of communications networks, not only at the Edge but

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Date:

11/21/2010

Figure1: Block schematic of the IBA

Designing For Telecoms

By Pietro Scalia, EMEA Power Marketing Manager for Telecom and Matthias Ulmann, EMEA Design Services Engineer, Texas Instruments, Germany

To reduce significant distribution losses due to high currents circulating on the Intermediate Bus in the Telecom/ Datacom distributed architecture, the value of this voltage (IBV) has been recently

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Date:

11/20/2010

Figure 1: Test data shows the capacitance effects of various overvoltage protection configurations

Telecommunications Safety

By Matthew Williams, Global Applications Engineering Manager, Tyco Electronics, Circuit Protection Business Unit

Telecommunications equipment must be able to survive surges and power faults as defined in the relevant standards. Survivability can be achieved by providing protection either remotely or at the

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Date:

11/20/2010

Figure 1: End-to-end efficiency in the traditional, 480V AC power distribution system

Hidden Costs of Power Distribution

By Ed Spears, Product Marketing Manager, Eaton Critical Power Solutions Division, Raleigh, North Carolina, US

Data center energy costs as a percent of total revenue are at an all-time high - emerging as the second largest operating cost in the IT organization, behind labor. The five-year cost for

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Date:

11/20/2010

Sigma Designs - Powering Entertainment and Control

Reported by Cliff Keys, Editorial Director, Editor-in-Chief, Power Systems Design

On my recent trip to California, I had the opportunity to visit Sigma Designs Inc., a leading provider of system-on-chip (SoC) solutions used to deliver entertainment and control throughout the

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Date:

11/17/2010

Figure 1: PI3101 complete power system

Compact Isolated DC-DC Converter

By Christopher R. Swartz, Principal Applications Engineer, Picor Corporation

System designers have struggled to determine the type of distributed power system to best meet the needs of the system while still retaining high efficiency, reliability, low cost and most of all,

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Date:

11/17/2010