Technical Features

May 2013

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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

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Figure 1. 2013 Honda Accord Touring/Hybrid LED DRL & Headlamp

Automotive Forward Lighting Applications Demand High Performance LED Drivers

Jeff Gruetter Sr. Product Marketing Engineer, Power Products Linear Technology Corporation

The market size for high brightness (HB) LEDs is expected to reach $12 billion in 2012 and grow to $20.2 billion by 2015 with a 30.6% CAGR ramp (source: Strategies Unlimited). One of the key application

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Date:

05/21/2013

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Figure 1. DOE proposed regulations vs. Level V performance for a 5V output EPS.

The no-load power crunch: 30 mW and beyond

Adnaan Lokhandwala, Texas Instruments

The need to reduce active-mode power consumption is somewhat obvious. What has not been so obvious is the need to minimize power drain in standby and no-load when products are essentially doing nothing.

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Date:

05/20/2013

USB power sensors in RF power measurement

By Chin Aik Lee, Agilent Technologies

In many of today's RF power measurement applications there is a need to make multiple power measurements simultaneously. Added complexities occur when the measurements need to be obtained from places

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Date:

05/20/2013

Advanced LED Drivers for Automotive Instrument Clusters

Raimund Wagner, ROHM Semiconductor Europe

The usage of LEDs in automotive applications continues to grow due to their longer service life and lower power consumption. Simultaneously, the diversity and size of integrated state-of-the-art instrument

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Date:

05/17/2013

Integrated power management enables smaller machine vision systems

Maurice O' Brien, Product Marketing Manager, Power Management Division, Analog Devices

As the form factor of machine vision systems continues to get smaller while the processing power in these systems continues to increase rapidly. Power management is becoming a more important design

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Date:

05/17/2013

Wireless systems for Internet control of smart lighting

Colin Faulkner, NXP Semiconductors

Electric lighting has been around since the first commercial incandescent lamps were sold in 1880. Since then, we have seen little widely adopted innovation - the introduction of the fluorescent in

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Date:

05/17/2013

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Figure 1: Daylight harvesting energy savings

Migrating from "power-centric" to "space-sensing" daylighting systems

Sajol Ghoshal, Director, Sensor Driven Lighting Business Unit, ams AG

Incumbent lighting installations today fail to address the most important energy saving "feature" a lighting system can implement, namely maintaining a user-defined amount of light that considers

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Date:

05/17/2013

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Figure 1. Forward operating mode of SBR structure

Improving the reliability of MR16 LED lamps

Ian Moulding, Marketing Manager, SBR Business Unit, Diodes Incorporated

With their attractive low forward voltage drop and significant cost advantage, it's no surprise that Schottky diodes have become a defacto standard for AC bridge rectification in a myriad of different

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Date:

05/17/2013

Automobile lighting in the face of things to come

Mike Godwin, Osram

Going from lanterns to LEDs, in a nutshell, describes the course of development in automotive lighting since cars first came on the scene 100 years ago. What originally served only a functional purpose

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Date:

05/16/2013

Lighting Control - How much do you need?

Dave Cooper, AEG Power Solutions

Lighting controls are becoming ever more sophisticated with the capability to provide real-time data on system status, settings, light levels, energy consumption, etc. For some applications this level

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Date:

05/16/2013

Improving Appliance Safety: Designing for Protection

Cristian Ionescu and Ceyda Akbay, NXP Semiconductors

When it comes to home appliances, the overwhelming focus tends to be on advanced features and functionality. Nevertheless, design choices that enhance user safety and overcome possible malfunctions

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Date:

05/14/2013

What's shrinking AC-DC power supplies?

Don Knowles, Director of Engineering, N2Power

Power supply design trends are clear and dramatic: additional features, improved efficiency, and smaller size for the same power ratings, for both battery-powered portable units as well as larger,

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Date:

05/08/2013

Elegant step-down conversion for 24V industrial applications

Frederik Dostal, Analog Devices

Industrial power supplies need to have very high efficiency today and often times need to be highly compact. In combination with the typical 24V rail available, many solutions utilize a switching

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Date:

05/07/2013